Date: Mon, 13 Apr 1998 21:17:56 -0400 From: fristnopsamm.wvnet.edu (Ramsey Frist) Subject: 9000CSE rough idle
I have a 94 9000CSE turbo automatic that has always run smoothly. Lately it occasionally "stumbles" or misses while idleing. This only happens after the engine is warm and moreso on warm days. There is no noticeable loss of performance. I installed new plugs. No difference. I did not see any evidence of oil leaking from the ignition coil module. A SAAB dealership checked the engine codes - nothing. They said it could be a coil but had no way to test it until it got worse. Of course, when the car was at the dealership it idled smoothly. I am told that SAAB does not sell the individual coils from 94 on. You have to buy the whole package. I was afraid to ask how much. Should I be looking around for a used coil module or after market coils or could the rough idle be something else? Any ideas would be appreciated. R. Frist