A poor timing belt or timing chain can be a significant issue. If the jumps a tooth, or breaks totally it deserve to lead to permanent engine damage. It’s vital to understand the symptom of a poor timing belt or chain, for this reason this doesn’t happen to her Toyota Rav4.

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Timing belts space made out of rubber and also nylon, unequal a time chain i beg your pardon looks a lot choose a bicycle chain. Here’s an ext on a time chain vs a timing belt. For all intents and purposes, they create the same symptoms as soon as they walk bad.

Timing belts room not that common. You’re much an ext likely to discover a timing chain in cars and trucks than belts. Smaller sized cars, specifically Japanese make ones, deserve to use timing belts rather of a time chain. They room most typically found on four cylinder engines.

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Toyota Rav4: bad Timing Belt/Chain Symptoms

Here are some of the most usual signs the a bad timing belt top top the Toyota Rav4:

Noise– A good indication the a timing belt has gone negative is walk to it is in noise. There might be a sound that rubber beating versus something. It’ll typically be a rough rattling sound, and it is regularly most noticeable right when you begin up your Rav4. Performance Decrease– If the timing belt has jumped a couple of teeth, but hasn’t please or damaged off yet, it can knock the engine the end of time. The timing belt is responsible for maintaining the camshaft(s) in sync with the crankshaft. If the timing belt has moved, that method that the valves will open and close in ~ the dorn time. This will bring about a power decrease. It’s highly likely that the engine is walking to be misfiring together well. Loss the Fuel Mileage– Fuel mileage will suffer as soon as the engine is no longer kept in time. Glazing andDry-rot(Timing Belt Only)– If you space looking at the Rav4’stiming belt itself, check to watch if the belt is glossy. It need to grip her finger as you easy brush across it. If that is slippery and dry, that is a great indication it can be negative as well. Check Engine Light– If the timing chain or belt needs replaced as result of wear, however hasn’t jumped a tooth, the business engine soon light will not come on. But, if it has actually jumped, the inspect engine light will very likely come on. In ~ the least, girlfriend should gain some kind of misfire called codes.
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A usual timing belt

Don’t overlook the Tensioner

The time tensioner can additionally go bad. The tensioners job is to save the best amount of push on her Toyota Rav4’s timing belt or chain. Together the belt/chain stretches with normal operation, it would get loose and loss off or jump. The tensioner keeps this from happening by maintaining a constant amount of force on the belt. So, together the belt stretches it adjusts because that this stretching. If the tensioner is no much longer keeping enough pressure on the timing belt, it’ll cause it come fail.

If you are going to replace the tensioner, make sure to swap the belt together well. It’s so hard to get to, and also timing belts/chains are reasonably affordable. It’s simply the TIME that it would take girlfriend or her mechanic to obtain to it that’s the problem.

Conclusion: Toyota Rav4 time Chain Symptoms

Most manufacturers will certainly recommend an altering the time belt in ~ 60k or 100k miles. Over there isn’t commonly a service window at all for the chains. Although, it have the right to vary. Where a lot of human being get into trouble is once they to buy a used auto with 100k no realizing the the belt organization is going come be immediately due.

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Good luck through your Rav4. If over there is anything the you would like to add, please leave a comment below. We would certainly appreciate it.