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Timing belt tensioner knocking noise
Timing belt tensioner knocking noise








Those are super cheap to replace if that is the case.Īnother possibility is the water pump. However, there are some parts of the setup that could be the cause of the rattling that may not be immediately obvious.įor instance, the plastic shoes that direct the chain can break down or loosen over time, and the rattling could be caused by them, not the chain. You should check the bearings and sprockets for the exact same reason, and of course, the chain itself. If the tensioner is defective, it’s much cheaper to replace that alone than it is to replace the entire kit. The tensioner should be checked first, as its inability to keep the chain tight is usually a source of the rattling. If not, it’s best to leave this part to a mechanic as well. Naturally, this is something you should only do if you actually know a thing or two about car engines. What you can do before taking the car to a mechanic is trying to determine which part exactly is causing the rattling. In some cases, multiple parts, or even the entire system, may have to be replaced. That’s because the only real way to stop the timing chain rattling is to replace the part that is causing it to happen. The reality is, unless you yourself are very well-versed in car engines and fixing them, you will probably need a mechanic no matter what. OK, so here’s the bad news: this isn’t one of those problems that have a nifty DIY fix that will solve your problem. Read also > Timing Belt vs Timing Chain (What´s The Difference) How Can You Fix a Rattling Timing Chain? Read also > Do Timing Chains Need To Be Replaced? (Here Is Why) Read also > What Causes the Timing Chain to Break? (Symptoms + Costs) So, it’s best to fix a loose timing chain as soon as you notice it if you can. Needless to say, that is very bad and could wreck your engine big time. If the timing chain gets really loose, it could fly off of the sprockets during operation and get stuck elsewhere in the engine. The rattling isn’t the worst of your problems either. So, if a loose chain is bouncing all over the place and causing rattling noise, it’s probably the tensioner that is actually compromised. Normally, the tensioner would prevent a loose timing chain from being an issue. It can rattle due to being loose because it’s bumping against surrounding plastic or other parts of the engine. The biggest problem is that the timing chain will stretch over time, which loosens its fit and allows it to bump against multiple parts of the setup. That said, it’s usually the chain itself that is the root of the problem. The system usually includes the chain itself, some sprockets that hold the chain, a tensioner, a water pump, and some ball bearings to help the chain move in the right direction.Īs you can see, there are several components here, meaning there could be multiple reasons for that darn rattling. To start, we should establish what components most timing chains have. Does a Rattling Timing Chain Need to be Fixed Right Away?īefore you can even worry about stopping whatever noises your timing chain is making, you have to understand what might be causing that noise.How Can You Fix a Rattling Timing Chain?.Why Do Timing Chains Rattle? (Diagnose).After picking one up from another dealer, I was able to finish the job.

timing belt tensioner knocking noise

In this picture you can see the worn area on the part on the left, and the new part on the right. On this car, the tensioner piston and the arm had gotten very worn, leading to the pulley arm needing replacing as well. The tensioner is a small oil-filled piston that pushes against an arm attached to a pulley that the belt rides on. I sold a timing belt job and began digging into it, but then found another problem. In this case, it was leaking a lot of oil. This car was overdue for its timing belt by almost 30,000 miles, so it’s not surprising that the tensioner had begun to fail. Over time, the belt tensioner could start to fail, and if the belt is allowed to go too slack, it can jump timing and damage the engine.Ī failing timing belt tensioner is usually diagnosed by a knocking noise from the tensioner with the engine running. We also replace the water pump, and often replace the tensioner. At my Honda dealership, we recommend replacing them at 100,000 miles.

timing belt tensioner knocking noise timing belt tensioner knocking noise

Timing belts need to be replaced at regular intervals to prevent them from wearing out and failing.










Timing belt tensioner knocking noise