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I have a 1994 Bonneville 3.8 supercharged, it idles rough and the car shakes. When your driving it is fine and has power. Please help!?
3 Answers
- CBLv 76 years ago
Clean or replace the Idle air control valve and check the PCV valve - sounds like you may have a vacuum leak.
- 6 years ago
Has trouble codes P1640 and P1670, EGR valve I replaced and that code has been gone. Has no misfire codes, replaced the plugs, wires are new. Checked the coils and the top one has weak spark compared to the others. Got a new coil and did not change, so possible ignition module?! Thanks for any help!
