Timing belt

do a 1990-oldsmobile eighty eight,v-6 3.8 liter moter. have a timing belt or chain.

Timing chain.

I believe you have a chain. The Gates Automotive site doesn’t list a timing belt.

Put your info into their “look up” and have a look.

Here’s their link:


Have you had a problem of some sort or are you just trying to determine the necessity of specific maintenance?