A poor timing belt or timing chain can be a major issue. If it jumps a tooth, or breaks completely it have the right to lead to long-term engine damage. It’s necessary to understand the symptoms of a bad timing belt or chain, therefore this doesn’t happen to your Kia Optima.

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Timing belts space made the end of rubber and nylon, unlike a time chain i beg your pardon looks a lot like a bicycle chain. Here’s more on a timing chain vs a timing belt. For all intents and also purposes, they produce the exact same symptoms once they walk bad.

Timing belts room not that common. You’re much much more likely to discover a timing chain in cars and trucks than belts. Smaller sized cars, specifically Japanese do ones, have the right to use timing belts rather of a timing chain. They are most frequently found on 4 cylinder engines.


Kia Optima: bad Timing Belt/Chain Symptoms

Here are several of the most typical signs of a poor timing belt top top the Kia Optima:

Noise– A an excellent indication the a timing belt has gone poor is walk to be noise. There may be a sound that rubber beating against something. It’ll typically be a turbulent rattling sound, and also it is frequently most remarkable right as soon as you begin up her Optima. Performance Decrease– If the timing belt has actually jumped a couple of teeth, but hasn’t please or broken off yet, it have the right to knock the engine the end of time. The time belt is responsible for maintaining the camshaft(s) in sync with the crankshaft. If the timing belt has actually moved, that means that the valves will certainly open and also close in ~ the dorn time. This will cause a performance decrease. It’s very likely the the engine is going to it is in misfiring together well. Loss the Fuel Mileage– Fuel mileage will certainly suffer when the engine is no longer kept in time. Glazing andDry-rot(Timing Belt Only)– If you space looking at the Optima’stiming belt itself, inspect to check out if the belt is glossy. It must grip her finger as you lightly brush across it. If it is slippery and dry, that is a great indication it could be poor as well. Check Engine Light– If the timing chain or belt demands replaced because of wear, but hasn’t jumped a tooth, the company engine quickly light will not come on. But, if it has jumped, the check engine irradiate will an extremely likely come on. In ~ the least, friend should obtain some type of misfire said codes.
A usual timing belt

Don’t overlook the Tensioner

The time tensioner can additionally go bad. The tensioners job is to store the right amount of press on your Kia Optima’s time belt or chain. Together the belt/chain stretches v normal operation, it would get loosened and autumn off or jump. The tensioner keeps this indigenous happening by keeping a continuous amount of force on the belt. So, together the belt stretches it adjusts for this stretching. If the tensioner is no much longer keeping enough pressure on the timing belt, it’ll cause it to fail.

If you space going to change the tensioner, make certain to swap the belt together well. It’s so difficult to get to, and also timing belts/chains are fairly affordable. It’s just the TIME that it would certainly take girlfriend or your mechanic to gain to it that’s the problem.

Conclusion: Kia Optima time Chain Symptoms

Most manufacturers will certainly recommend changing the timing belt at 60k or 100k miles. Over there isn’t generally a service window at all for the chains. Although, it deserve to vary. Where a lot of of world get right into trouble is as soon as they buy a used automobile with 100k no realizing that the belt company is going to be automatically due.

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