Let us warn you right now: removing and replacing the timing chain on your Toyota VVTi engine is a very complicated process. If you have never done that and are willing to learn, make sure this is ...

Though a timing belt and chain perform the same job, there are some differences in their components, which make it necessary to know which one your engine has.

If there's an elusive animal in the amateur performance world, then degreeing a cam is it. Few know how to do it, and even fewer understand the benefits. If you ...

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC. So what is it and what does it do?

Does the timing belt need to be replaced? Richard Hello Richard, I understand the anxiety caused when you see the check engine light or MIL (Malfunction Indicator Light) on your dashboard.

A compression test is to determine how much pressure the engine makes, and a leakdown test measures its ability to hold pressure.