The secondary tensioner on the right side of the engine is fully extended and there is slack in the chain. Chain slap,detonation, and misses are all signs of possible tensioner issues. Was there a formal timing chain recall? Based on research this is not crystal clear to me If there are no open recalls against a particular VIN I am looking at does that mean timing chain problem is no longer a factor on the given Xterra? Thanks in advance. According to numerous consumer complaints, an engine rattle is common on cold starts in certain Audi models and model years. 6L engines can also tend to be noisy, producing a light knocking sound at idle. 5 SOHC are known to fail, especially after a timing belt. Pull the distributor cap and observe the rotor position. If the tensioner goes bad, then it will basically be like having a bad timing belt because it won't be able to function properly anymore. Engine noise on cold start up. How to Tell if a Timing Belt Tensioner Is Bad. (the shop manual shows two lower bolts into the oil pan) The manual does not say specifically if the oil pan has to come off or not. TCTs go bad as early as 20k miles and the symptom is a metallic rattle or raspy noise when starting a warm/hot engine. It was the waterpump bearings. Here at Advance Auto Parts, we work with only top reliable Timing Chain Tensioner product and part brands so you can shop with complete confidence. 2006 Ford Crown Victoria with brief timing chain tensioner noise. org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. If the timing chain tensioner, O-ring seal, or washer is damaged, replace the timing chain tensioner. A mechanic's stethoscope is a great tool to pinpoint this noise. I had the timing chain assembly replaced next and the sound was gone. Interesting thing that when the car is not moving, I need to rev the engine higher to get the noise - about 2200 rpm. After I replaced chains,guide, tensioners the chain noise came back within 100 miles. Also when your timing belt is loose it will cause some drivability issues usually under high load or high rpm. I guess some repairs require the motor to be removed because of poor design on Ford's part, which can be expensive. 0 TFSI quattro. Of course the above is from experience with other cars and not the Prius but a timing chain is a timing chain. I have rattle, noisy shitty sound from the front of the engine. than at 190-210 degress the knock goes away 100%- the knocking sound is the pcm trying to adjust the timing of the motor because the chain is rocking around and cant keep the valve timing-so the adaptive learning is taking over and trying its best to keep the car runing and the cats from over or under heating. Internal mechanical problems can also cause engine knocking. My thoughts was to check the timing chain and tensioner. The secondary tensioner on the right side of the engine is fully extended and there is slack in the chain. even the factory ones sound like they fail from time to time. however, they tend to make a lot of noise, especailly with higher miles, but i heard that it is the chain guide rubbing on the chain. within a week or 2 it became so bad that the tapping noise would hurt your hears when the hood was up. The cam chain tensioner should come out in a single piece when you remove it. 2009 Audi A4 was recalled for oil consumption issues. Rebuilt in March of 2014. It is more of a rattling/heavy loud pinging noise from the left side of motor. Blauparts Vw water pump replacement 'Service Bulletin' pdf. My newly acquired 2001 H6 project car (did not plan on a project, but that is how it is turning out!) had a rattling sound when warmed up, that seemed to be coming from the passenger side of the timing cover. In actuality the timing chains, guides, and tensioners should be changed out by 130, 000 miles. A driver will likely hear noise caused by a loose or worn timing chain before it completely fails. I have seen Subaru timing belt tensioners go bad and make noise like an engine knock. You need both, now. It's kind of a long read, but very informative: FYI/DIY: Timing Chain Tensioner Whine VQ40 repair - Nissanhelp. There is a problem and Nissan supposedly has an updated tensioner setup as of april 2009. What Are Symptoms of a Bad Timing Belt? When a rattling noise occurs in front of the engine, the belt may be loose or the timing chain may be coming apart. If they have worn or the chain has stretched, it can slack off too much and jump when cranked over at the next start. Each timing chain has a guide rail (curved on the upper chain, straight on the lower chain) and tensioner rail to keep them tight. 0t TSI Audi or VW you may have timing chain tensioner issues. Depending on how many miles you have on the car, the timing chanin my be beyond it's maximum elongation which I believe is about 4. Oil/hydraulic pressure is used for timing chain tension. If the timing chain is not metal, it's really a timing belt, and they can be a lot more difficult to tell if they are going bad. If a timing belt fails, your car will not start. The guides are plastic so you really won't know what's going on till its too late. It had pointy teeth and a worn tensioner. Any knowledge or experience is appreciated. Volkswagens are known for issues with their timing chains; the well-documented premature wear of the timing chain tensioner can cause the timing chain to loosen, snap, and cause serious engine performance problems. The Service Team at Redline Speed Worx (RSW) has taken this a step further to ensure the longevity of your engine. 90% sure the original diagnosis was correct. It will sound like a piston knock as the tensioner just flaps around under the timing cover. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. And the engine has been run very low on oil? I really don't think the engine has a chance. The timing is then changed, resulting in poor performance. Timing Chain Tensioner GTi MK6. Figure 4 shows the components that are behind the timing cover: Camshaft pulley; Tensioner. Dan Caron says: timing chain replacement is easier than it sounds. Chain too tight maybe?. Does that make sense to you guys? stwat are you referring to the aux drive belt? the timing chain has a tensioner but I don't think it would rattle like that because its a linear actuator which pushes one of the chain guides in towards to chain to keep it tight. Cab Automatic with a 4. This engine rattles like it has a bad timing chain tensioner or bad lifters only after it has sat overnight. The cam tensioners in our bikes are automatic, so they adjust by themselves. Timing belt replacement should be conducted by a professional mechanic as it is an advanced project that requires one to disassemble the engine to be able to remove the old belt. The good thing is, these chain tensioners were mostly used on race engines and not usually found on street cars. I made the same mistake as you replacing the serpentine belt which didn't help. 0 V6 SOHC Rangers had timing chain tensioners go bad causing a ticking noise. It's hard to determine a noise that I cannot hear, I am just stating that I have timing chain tensioner failiure is very uncommon. i get it randomly, but most often when i go drive the car hard a few minutes after i've just driven it, like if i go shopping To view links or images in signatures your post count must be 10 or greater. A chain will experience the same issues as well as make a considerable amount of noise. The chain tensioner (2) attempts to take up the excess slack in the timing chain. My thoughts was to check the timing chain and tensioner. Just like your heart, if the engine jumps time, it will run poorly or fail. TSI engines had an early revision timing chain tensioner that was updated. Yes there are some warning signs of bad timing belt that gives you red signal before time. hold on, is there a specific time you should replace the timing chain. I asked a question a week ago or so about a flex pipe TSB. SLK 230 Timing Chain Tensioner Replacement/ Chain Noise I have posed on this previously (2011-) since buying my car (showroom new condition throughout) with 38,XXX miles, but never got a definitive answer. The J-Body Organization, j-body. I just had a truck that I was working on that had timing chain and the tensioner broke and at idle very noisy off idle noise decreases a lot with more load on the chain. 0 sohc timing chain rattle - everything you need to know tensioners should of been replaced at 70000 miles. As it turned out, the noise was caused by a bad timing belt tensioner but the noise wasn't from the timing belt slapping the cover. Each timing chain has a guide rail (curved on the upper chain, straight on the lower chain) and tensioner rail to keep them tight. Volkswagen Polo IV - Bad timing chain or hydraulic tensioner? - Collos25 : Have you checked with VAG chain failure can be instant due to a manufacturing fault in many of VAG timing chains- they are at present replacing some 2. Timing Chain. The wear in each one of the chain links adds up over time. When the chain becomes loose and starts to rattle around the seal can break loose and the tensioner starts to bleed off oil pressure. complete engine to be replaced, with only 25,000 orginial miles on vehicle. I've never heard of replacing a timing chain and gears on a 4. (mostly ugly, not so much good) The 4B11 motor that comes in the 2008+ EVO X and 2009+ Lancer RalliArt does not have a timing belt. This will definitely happen if the pulley bearing goes bad. As soon as the engine starts the oil pressure pushes tensioner piston against the chain so no matter how much slack you have (within reasonable limits) there shouldn't be any noise from the chain (unless the hydraulic tensioner doesn't work). I then was wondering if the engine was detonating so I hooked the timing light up and the timing is bouncing all over the place. I dismantled the engine and found a bad rod bearing along with a leaking head gasket. I now have the loud "non rythmic tapping noise from the front of engine" that the star CD describes as a bad timing chain tensioner, I can see from the Autohausaz website that the tensioner is just a cap and spring. If they have worn or the chain has stretched, it can slack off too much and jump when cranked over at the next start. i took it to a shop to have a ticking noise checked. Just replaced the timing chain and balance shaft chains along with the tensioners and water pump. 4 L engine timing chain noise does the car sounds like a diesel. Also check that the belt/chain isn't stretched. I disconnected , water pump, alternator etc and noise remained. After the timing marks are aligned on the VVT gear, place paint marks on the chain and both gears. Keep in mind that these prices are there to give you an idea of what you can expect to pay, but the actual cost may differ according to the specific repair shop you go to in your area. 5L is stuffed. Find Expert Advice on About. The J-Body Organization, j-body. Pull on the slack guide a bit while pulling the pin, and the tension piston should take up the slack in the system. I contacted the shop that did the timing belt job and the guy checked the video. Installing Timing Chain Tensioner On 2. Both the primary and secondary chain tensioners use a spring and oil pressure to maintain proper chain tension at all times. Replace Timing Chain and Tensioner for 22R Toyota Hilux 2. The bad news is that the parts are on back order and likely won’t arrive until next week. It has a timing chain that turns the cams. Free Shipping and available now! See OE cross references for KIT-M62TUTIMINGKIT. I tore down my top end to replace a head gasket and found a bad timing chain I bought a new one and replaced it but I can't seem to keep it tight it's not jumping time but there's pops here and there and noticeable slack I am just curious to how the tensioner works and if I have to manually adjust it. Sounds easy but on my car, just using my fingers I could not compress and simultaneously align the assembly to catch the threads. it sounded like an exhaust manifold leak to me because i only heard it coming from the pass. did i screw anything up or is it just bad timing. I dismantled the engine and found a bad rod bearing along with a leaking head gasket. Includes FCP's Lifetime Warranty & Unlimited 365 Day Returns. even the factory ones sound like they fail from time to time. Learn about this problem, why it occurs, and how to fix it. Then they tell me I need a oil pan gasket. front of motor guide most likely. On some Audi’s, the chains are located in the rear of the engine between the transmission and block, so the engine will have to be pulled. 0TSI (EA888) Timing chain tensioner failures Water pumps also seem to be another common failure item. How big of a deal is the VVT timing chain tensioner problem? I just read about this issue with certain Mazda engines; the timing chain can be too loose due to a bad tensioner and that causes it to rattle and rub against the valve cover. It's as if you have bad gas. I go to school for automotive mechanics and my instructor at school informed me he thinks it is my timing chain tensioner that has failed and I agreed with him because that is what I thought it was for the past year or so. i'm under the impression that the chain is not like timing belts that need to be replaced at specific intervals. The manual says to get the timing belt replaced at 90,000 miles. When the tensioner piston extends, the chain is pulled tight. Timing Chain Stretched or Tensioner Problem? I have a problem with timing chain slap upon startup. Wish I could have talked with the mechanic. Morning all, I'm looking for a little bit of advice. if the noise persists you know it's timing chain if it's #1 spin all the pulleys while the belt is off - one will likely be rough, grinding, and maybe even loose if you grab/wiggle it. A tensioner that sounds bad usually is bad. hold on, is there a specific time you should replace the timing chain. Oil pressure is low: The tensioners that keep the timing chain tight are operated by oil pressure so if your oil pressure is low then the tensioner will not be working properly hence your chain will flap around and hit the guides. Symptoms of a Bad or Failing Timing Chain. Timing belts are a normal maintenance item on a vehicle. just to replace the timing chain. I have the timing cover off the engine. 5 SOHC are known to fail, especially after a timing belt. Cam chain tensioner failure is a concern for sure but considering the number of early Harleys still running the OEM tensioners with no issues as compared to those that have had issues; the percentage of failures is very small. com Forums. How Does a Defective Timing Chain Affect Your Volkswagen’s Performance? 12 Jun, 18. if the noise persists you know it's timing chain if it's #1 spin all the pulleys while the belt is off - one will likely be rough, grinding, and maybe even loose if you grab/wiggle it. We will have to order parts, i'll call you when they are in. 5 to 2 inches longer than the new one. Update - Motor is out. This engine rattles like it has a bad timing chain tensioner or bad lifters only after it has sat overnight. I just want to hear what you guys think. The chain tensioner is a ratcheting type on these cars and basically never go bad. Your Mechanic. High Quality Genuine & OEM BMW parts. Internal mechanical problems can also cause engine knocking. it costs you nothing and doesnt take too much time to at least look at this especially since you spent the money on a SR. The volume varies because the chain tensioner uses a ratchet type sytem, as the chain stretches the plunger moves further out keeping tension on the chain, but sometimes there is a middle point where the tensior's plunger can't quite get to the next ratchet lock, causing the chain to make a more rattling noise than usual. • Rough idle. But, if the engine has a bad rear chain or guide, or a chain. Examine serpentine belt tensioner while the engine is running. The timing belt (1997-2001) has a tensioner and idler to keep it in place. Now the hissing (?) noise that I had already heard during my last ride got worse. Timing chain tensioners are simple but important. I figured worn parts, so I went to advance auto, bought the complete kit, put all new parts (chain, gears, guides, tensioner), and timed the engine using the marks with the unique links on the chain. At least that's something that could be changed without taking the whole timing cover off (but don't let that make it sound easy; if the timing cover stays on, there's a little hex plug that needs to come out for access to relieve the tensioner, in a really evil place). It would be great to see AGCO do an article specific to the timing chain stretch issues that are beginning to occur on the Ecoboost trucks, primarily the 2011's. Does anyone know of a Timing Chain Tensioner DIY or have any tips or instructions for me. This, in turn, may cause a rough idle and possibly set a P0300 random misfire code and/or lean or rich codes. If you give it any amount of throttle above that the noise goes away. When these start to wear out they sort of sound like a card in the spokes of a bicycle and the sound is usually worse when the engine is warm. It maintains the timing belt tension. Timing Chain Kit Fit 91-02 Sentra 200sx G20 2. I need Help How do I know if my 2001 400ex timing chain tensioner needs replaced, Like how do I test if it is bad, or going bad? I thought it may be bad because when I accelerate I hear a slapping noise in the engine. A worn timing chain, guides or chain tensioner can also cause variety of noises originating from the timing chain cover area of the engine. it costs you nothing and doesnt take too much time to at least look at this especially since you spent the money on a SR. Just as in the bike, if the chain gets too loose, it can fall off or jump a tooth on the sprocket. Okay question, I'm like 98% sure I torqued the chain tensioner, but if you don't reset the tensioner is that bad, cuz it's on like a zip tie sort of mechanics you know, once it goes so far it can't back down unless you release it, and I'm pretty sure I didn't reset it do to the fact I figured it can't hurt, it will be as tight as it was before and when I torque it, it will either stay the same. The wear in each one of the chain links adds up over time. A known fault in the oil. Now take a look at your idler sprocket (the sprocket that bolts into your cylinder head) If the notch on the sprocket is not exactly where it is in this picture, then you need to fix it. It's a common problem on the 2003 to 2008 Toyota Corolla for the rubber o-ring on the timing chain tensioner to become dry and brittle after a few years. Even with the twin turbo engine having an impressive three timing chains, three chain tensioners, four chain guides, four camshafts, and 24 front cover bolts - at least the front cover area is rather open and easily accessible even when the 3. 7T with less than 3,000 miles due to leaking. This had to be the cause of the P0016 code and I suspect my cam phaser was fine all along, but I replaced both phasers since I was in there. Grinding or squeaking noise from the belts or tensioner. A less common, but more serious reason for knock is a bad timing chain tensioner. The snakelike timing belt on the side of the engine is essential for maintaining your car's performance. 5 mm according to the repair manual (I have the manual chain tensioner). Kia Soul 2014-2019 PS Service Manual / Engine Mechanical System / Timing System / Timing Chain Removal 1. Noise is constant, at all RPMs, almost sounds like a pump, but is coming from the lower portion of the engine. Timing chain cover removed. Pros: Quieter than chains. They fixed the timing chains. last week, the engine was making a DADADADA sound. than at 190-210 degress the knock goes away 100%- the knocking sound is the pcm trying to adjust the timing of the motor because the chain is rocking around and cant keep the valve timing-so the adaptive learning is taking over and trying its best to keep the car runing and the cats from over or under heating. The topic of timing chain noise and the fear of chain breakage comes up frequently enough that I thought it would be valuable to post a sound clip of my timing chain noise. This may produce debris, worn from the timing cover or produce a hole in the cover and a serious oil leak. the tensioner comes with instructions at least my timing chain kit did, it is very different looking from the old tensioner. Basically, the plastic timing chain tensioners wear out (by and large the result of oil deprivation over long oil changes) and the chain slacks, stretching and skipping teeth. ) My friend who I bought with me to buy the car with is a mechanic with over 20 years experience straight away said it could be the timing chain. You can prevent the misfortune of having a timing belt or chain go out while you’re driving, by having it replaced by recommendation of the manufacturer. Here at Advance Auto Parts, we work with only top reliable Timing Chain Tensioner product and part brands so you can shop with complete confidence. I decided that this long weekend is going to be the weekend where I replace the timing chain on my bakkie. i thought that randomy diesel sound was the timing chain tensioner. Sounds easy but on my car, just using my fingers I could not compress and simultaneously align the assembly to catch the threads. The VVT solenoid system performs the best with clean engine oil. If it's misaligned, check for a damaged tensioner that may have allowed the chain/belt to slip a tooth or several teeth. I think you're safe with an '05. This job can be thousands of dollars. The guides are plastic so you really won't know what's going on till its too late. If the oil pressure is correct, replacement of the hydraulic tensioners and chain guides would be required. I've been searching for an LR4 for the bride, found one at an attractive price, but it needs (according to the listing) timing chains and chain guides. which causes snatching. and teeth built into the piston ensure that it doesn't retract too far back into its housing and loosen up the chain. 0TSI Timing Chain Tensioner Failure Posted on 11/21/2016 If you have a 2008-2013 Audi A3/A4 or Volkswagen Jetta/GTI/Passat with a 4 cylinder turbo charged engine, there is a design flaw with serious consequences that we want you to be informed about. Grinding Sounds – If the timing belt doesn’t have a firm grip on the pulleys, then it will cause the pulleys themselves to make grinding or rattling noises. Okay question, I'm like 98% sure I torqued the chain tensioner, but if you don't reset the tensioner is that bad, cuz it's on like a zip tie sort of mechanics you know, once it goes so far it can't back down unless you release it, and I'm pretty sure I didn't reset it do to the fact I figured it can't hurt, it will be as tight as it was before and when I torque it, it will either stay the same. There was like a rattling noise in the higher revs and the hyped VTEC-Kick was missing. This maybe be blown way out of proportion from reading online, im not sure. Various pulleys help sustain the rotation effect of the timing belt. Far and away the best time to identify the sound of a timing chain that is about to jump is going to be listing to it when you first start the vehicle. these tensioners are none adjustable and sometimes brake causing a knocking sound in the motor You can tell a timing chain is bad when your engine makes. Yes you can save hundreds of dollar by replacing car timing belt at Home or in Office or find some mechanic for replacement but don't forget to Evaluate Car Timing Belt replacement services before buying. Tighten the timing chain upper guide bolts to 89 in. Noise started in late march - drove car 1600 miles at about 65 mile per hour and noise got no worse or better. I have a 2012 audi a4 that is by vin number is part of the the timing chain tensioner and timing chain issue. Sometimes it would rattle sometimes not. so on my 84 atc110 i have the engine cover off and the flywheel, stator all taken off. After removing the fan belt which was well worn with 170K on it, and ruling out water pump and such, he decided it was the timing chain. This isn’t quite as bad as it sounds since on a 300Tdi you don’t have to disturb the water pump to remove the cover, but you will need to remove the crankshaft vibration damper and belt pulley. The early 2. Could be a worn out timing chain. If they have worn or the chain has stretched, it can slack off too much and jump when cranked over at the next start. (120 us dollars), plus labor. The chain tensioners used from 1996 until 2001 had a ratchet mechanism built in to self-adjust the tensioner for wear. The timing chains should not need replaced as that is the point of a timing chain as opposed to a belt. Aim the timing light at the marks. I did my timing chain guides and have also replaced the timing chain tensioner. 2 Nissan Start Up Rattle KA24E Timing Chain Noise Fix 1989 to 1997 Check for a Bad Timing Chain in 5 Minutes (new. actually, as long as the bike is not in gear, you should not have a problem rolling the bike around with the tensioner outas long as the crankshaft is not moving, there should be no problem, but if you turn the crankshaft with the tensioner outyou will throw your timing off beause the chain will jump a cam sprocket. On other engines things are not so easy. The Service Team at Redline Speed Worx (RSW) has taken this a step further to ensure the longevity of your engine. I picked up a '97 Dakota in Feb. Then the service guy calls me back and says, I talked to the tech, and he took the bike for a test ride and noticed a ticking noise. Even though I tell him the noise is from the belt side he swears it's the cam chain tensioner. When the timing chain guide (1) breaks, the chain drops down. This was a common problem in these vehicles, and the fix is pretty straightforward. Tensioner, do you mean the timing chain tensioner, or the belt tensioner? Be sure to check the latter as well as the idler pulley; they are unrelated to the timing chain. When you finally must replace your timing belt, it’ll cost you anywhere from $300 to $900. If they have worn or the chain has stretched, it can slack off too much and jump when cranked over at the next start. OK, the serp belt came off, the noise is the same. TCTs go bad as early as 20k miles and the symptom is a metallic rattle or raspy noise when starting a warm/hot engine. Symptoms of a Bad Timing Belt. Our trucks have hydraulic timing chain tensioners, so if one of the timing chain tensioners is, for whatever reason, not building up pressure like it should be, that COULD explain why the noise goes away when it warms up. Replacing the upper timing chain tensioner is not a task for the complete novice. The crank rotates about 5-6 degrees. Other years affected? We. However, when the timing chain is loose, it may cause a vibration inside the motor and that will produce a rattling noise as the engine idles. I have a 2012 audi a4 that is by vin number is part of the the timing chain tensioner and timing chain issue. Remove the V-ribbed belt for the vane pump. Sounds easy but on my car, just using my fingers I could not compress and simultaneously align the assembly to catch the threads. Internally, the timing chain tensioner utilises a spring that presses a plunger against the chain to hold it tight while the engine is not running. Chains do not a service interval for replacement like a belt does, however if the wrong type of oil filter is used or the oil not changed and level maintained they can wear out and are very expensive to replace about 4 times what a timing cost to replace. my timing chain has slack and it is making a really loud noise rubbing against the broken guide rails there is 2 broken guide rails and a weak tensinor. More often than not, the tensioner goes bad before the timing belt does. Shop safely with us online or call 888-844-3393 and buy the quality part your car or truck needs today. Interesting thing that when the car is not moving, I need to rev the engine higher to get the noise - about 2200 rpm. It's not so much that the timing chains are stretched, I mean they'd probably last for 3 or 400, maybe 500,000 kilometres, before they'd stretch bad enough that they'd need. Basically, the plastic timing chain tensioners wear out (by and large the result of oil deprivation over long oil changes) and the chain slacks, stretching and skipping teeth. Learn about this problem, why it occurs, and how to fix it. 0 diagnostic procedure of part 3 It is then required to remove all timing chain components and do a visual inspection on all the timing chain components and look for broken guides, defective tensioners, stretched timing chain, broken balance shafts, excessive wear on camshafts, excessive wear on camshaft bearing bracket, damaged adjuster, broken rocker arms, and sludge buildup. The old tensioner was very stiff with not a lot of spring in it compared to the newer part. Some make more tapping/ticking noises than others - much of that noise is valvetrain / timing chain related. ive heard that these are non-wear parts. The topic of timing chain noise and the fear of chain breakage comes up frequently enough that I thought it would be valuable to post a sound clip of my timing chain noise. Truth About Timing Belts. Step 7: Remove the timing belt tensioner. You dont have much to worry about in the chain. 3: Sticky main timing chain tensioner I've done a lot of searching on the forums about timing chain problems on VQ35DE. Sounds like Honda has it. It gets louder with higher RPM, but the noise isn't syncronis with RPM, if that makes any sense. Most of the noise you hear may only appear when the engine is cold but it may go away once the engine warms up. A less common, but more serious reason for knock is a bad timing chain tensioner. Chain Tensioner. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. so i bought a new. Engine Misfires – If the valves of the cylinder open or close too prematurely, then it will result in an engine misfire. Anytime you hear a rattle it means something is loose and needs to be fixed before it breaks. I have a 2003 Silverado Reg. Above is a photo of the two timing chain tensioners, the unit on the left is the tensioner prone to failure and the unit on the right is the revised tensioner. if the noise persists you know it's timing chain if it's #1 spin all the pulleys while the belt is off - one will likely be rough, grinding, and maybe even loose if you grab/wiggle it. The volume varies because the chain tensioner uses a ratchet type sytem, as the chain stretches the plunger moves further out keeping tension on the chain, but sometimes there is a middle point where the tensior's plunger can't quite get to the next ratchet lock, causing the chain to make a more rattling noise than usual. but not too bad when you put it in perspectivei just paid out over €6,000 for new engine & Labour because of this stupid problem! Local indie has. Then, line the bright links on the timing chain up with the marks on your camshaft and crankshaft gears to get your engine to top dead center. FYI, the engine is in a '99. Some people experience “baseball card in the spokes” sounds as well. I mean the clatter was really loud like what an old desiel engine or bad piston slap sounds like. Almost every bmw M62/S62 ive seen has this issue and I believe personally it is there because the timing chain tensioner bolt was not changed in time and the spring was worn out. Prices will vary from state to state and from car to car, but they should give you a rough idea of what you can expect to pay. will have to pull timing chain cover to check. OK, the serp belt came off, the noise is the same. The last thing you want to do with a vehicle suffering from a bad Timing Chain Tensioner is to continue driving it. A tensioner that sounds bad usually is bad. The chain tensioner for the primary chain is the ratchet type with a non-return mechanism. my timing chain tensioner went bad, but I slacked and waitedMy car was making a constant light tapping, at first I thought it was just a lifter tap. I just had one in my shop today (2002 Ford Explorer w/110K miles[build date 3-01]) with the timing chain rattle (sounds like pinging) between 2500-3500 rpm. i would not ignore this by any means. My instructor told me that my engine is a ticking time bomb and the chain will break at any time and destroy my engine. A rattle could be normal noise or caused by a much more common issue like the drive belt tensioner or valve adjustment issue. I have a 2012 audi a4 that is by vin number is part of the the timing chain tensioner and timing chain issue. What does a timing chain tensioner do? For your engine to work properly it is critical that the moving parts within the engine work in perfect time with each other. A new tensioner should be supplied in the fully compressed non-active state. The tensioner and guides are brand new. Also check that the belt/chain isn't stretched. Replace timing chain and tensioner or guides retrieve broken guides from oil sump replace oil : 44400 mi: Engine noise at start up timing chain was stretched. This engine rattles like it has a bad timing chain tensioner or bad lifters only after it has sat overnight. HI 318ti, Thanks again for your help, and those useful links. within a week or 2 it became so bad that the tapping noise would hurt your hears when the hood was up. The drivers side chain got looser as I turned the motor over and then it would get tighter. Learn about this problem, why it occurs, and how to fix it. The tensioner is basically a spring loaded pin that pushes on the timing chain giving it tension. If they have worn or the chain has stretched, it can slack off too much and jump when cranked over at the next start. which stretches chain. It maintains the timing belt tension. Its a timing chain tensioner issue. Scorpio Cosworth Timing Gear. Timing Chain Tensioner(s) Giving Up the Ghost Only 127k on the clock currently, was hoping I'd never have to mess with the chains on either of my 5. Find Expert Advice on About. 3 Ford is relatively simple compared to our front- and all-wheel-drive competition. Timing Chain Tensioner GTi MK6. As so many guides including the Audi manual itself states that you have to essentially remove everything, timing belt, bumper, radiator, etc. You need both, now. Mean while I am waiting for GM to get back with me on the timing chain issue. Grinding or squeaking noise from the belts or tensioner. There are three possible reasons why your timing chain is making the rattling noise. got a good deal on it ,now i get to spend some of the money i. Any help would be appreciated!. A worn timing chain, guides or chain tensioner can also cause variety of noises originating from the timing chain cover area of the engine. I dismantled the engine and found a bad rod bearing along with a leaking head gasket. If the engine is equipped with a hydraulic timing chain tensioner, the noise may disappear or lessen as the engine oil warms up and the tensioner removes some of the slack. Some have thought it was oil filter related. Removing this slack on one side of the chain also causes the cam sprocket (3) to rotate and change camshaft timing on that bank. It is possible that the timing chain tensioner is bad but in my opinion, unlikely. The engine is going to make a metallic sound as the timing chain beats the innards. Noise is constant, at all RPMs, almost sounds like a pump, but is coming from the lower portion of the engine. The engine actually sounds fine when its cold.