one_fast_prix Posted December 2, 2006 Report Share Posted December 2, 2006 this is on my 3.1 auto cavy: well, got the z almost back to running right, except while having the throttle slightly open it bucks/lunges. it seems to be the only time it does it. and if i hold it there it will do it until i press harder on the gas. the other thing i notice is when braking the rmps jump around slightly, but at idle and while driving they are perfect. everything with the fuel system is new. no vac leaks. so i'm thinking something electrical or bad mounts maybe? Quote Link to comment Share on other sites More sharing options...
Stevo Posted December 2, 2006 Report Share Posted December 2, 2006 Cavalier? Hmmm J-body not W-body. Could be the belt tensioner. Quote Link to comment Share on other sites More sharing options...
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