I know this is Chevelle exclusive site but just wondered if any body could help out with it's cousin (GM).. 89 Buick Riviera, fuel injectd v-6 hesitates upon acceleration from o-30 intermittently. I've checked the throttle body and cleaned everything. Don't know where else to turn..

Thanks!

Could be a vacuum leak..

Try spraying a little carb Cleaner at the base of the throttle body right at the gasket while it is running and if the idle drops you have a vacuum leak, change the gasket.

------------------
'71 468 Street/Strip Monte Carlo 3950lbs, 9.8:1, 3.55's, 11.46 @ 117, 7.29 1/8 mile
1.62 60'