93 sc400 rough idle
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Driver School Candidate
Joined: May 2008
Posts: 3
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From: TX
93 sc400 rough idle
I just finished with new spark plugs, wires, coil packs, timing belt water pump and sea foam the engine to try to fix this problem. starts up fine. at idle the car seems to have a miss that isn't uniform. and when I put the car into reverse it gets worst and the lights dim almost sounds like it will stall. I had the battery( about 1 yr old) and alternator checked out (original) both checked out fine. When I turn more items on ex..lights a/c flashers etc the lights dim and the car runs worst at idle. but when gas pedal is pressed it seems to smooth out. No check lights on the dash HELP!!!
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