'88 Bonneville - Won't Start After Intermittent Stalling
Hi - I'm new to this forum and there'* some great info posted here. My son'* '88 Bonneville had been giving him problems recently - he told me that he'd be driving it and the engine would quit. Sometimes it would restart right away, other times he couldn't get it going. Well, it always started and ran fine for me, so I wasn't sure what the problem was. Last night I took it for a drive and the engine quit on me - just stopped running and all of the indicator lights came on. Now it won't restart - it cranks fine but doesn't even cough. I haven't had a chance to attempt to diagnose it yet, but I'm thinking bad ICM, CPS or ECM. I've read that it'* difficult to bench test a CPS and that a bad CPS will prevent the ICM from firing the coils, causing one to possibly suspect the ICM. Is there a way to eliminate one of these as the cause? Car ran great up until last night.