MaryEFCH Posted July 31, 2013 Share Posted July 31, 2013 My timing belt broke, used engine with 160 thousand miles put in with new belt and new water pump. Car vibrates, so one motor mount was replaced. Car vibrates more. Mechanic says he has no idea why. Told me the other motor mounts were okay. Before motor mount was replaced, car vibrated but not as bad as now with the new motor mount. Vibrates violently when AC is on. I have paid over $2000.00 for all things done so far. I don't want to be a dumb female trusting a mechanic. Link to comment Share on other sites More sharing options...
James Matteu Posted August 1, 2013 Share Posted August 1, 2013 It should idle around 750rpms when warm. Could be old mount, not broke, but my money is on an idle issue or vacuum leak causing roughness. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.