When they get sloppy and worn they can.
timing chains are replaced only if they make noise........however in the case of small engines they should outlast the engine! so you do not replace the timing chaing........seen cars with 200k+ with no issues from the timing chain!
Timing chains are designed to last the life of the engine unlike timing belts.
There is no timing belt. It is a timing chain. I have 130,000 miles and have not had any trouble. It will start making noise when it is time. Unlike timing belts which will break, timing chains wear out slowly.
If the noise sounds like a banging sound it could be that you have a worn timing chain. Note: 22re's have timing chains not belts. You should have the noise checked-out by an experienced Toyota mechanic.
There is no timing belt. It is a timing chain. I have 130,000 miles and have not had any trouble. It will start making noise when it is time. Unlike timing belts which will break, timing chains wear out slowly.
4M40 is timing chains
Timing chains have an automatic tensioner. If it is loose enough to skip timing or makes a noticeable noise you are probably going to have to replace it. Even chains stretch with use. By the way, changing a timing chain is not all that difficult but, if you don't know what you are doing you can completely destroy an engines valve train if it is not done properly.
That's an easy one! There is no timing belt. It is a timing chain. I have 130,000 miles and have not had any trouble. It will start making noise when it is time. Unlike timing belts which will break, timing chains wear out slowly.
Four-Cylinder has chains, V6 has belts.
chains
When a timing belt is going bad it can make a high-pitched screeching sound. It can sound like a high-pitch whirring noise. Not all timing belts make a noise when they are worn or going bad.
A timing chain does not need to be replaced. Sometimes they can go bad and will make noise, or can get a bad link, requiring replacement. Timing BELTS require periodic replacement because they are rubber and wear out over time. Chains are good until they experience mechanical breakdown due to excessive wear.