1994 Oldsmobile 88 6 cyl Front Wheel Drive Automatic 175000 miles
A buddy of mine has a 1994 Olds 88 with a 3.8 V6. When he bought the car 2 years ago it needed a new ECM which he replaced. Until recently the car was working fine. A few months ago the check engine light started coming on. When it was on the car would idle and run rough and the transmission would slip and there was just an overall loss of mid-range power. After awhile the check engine light stayed on all the time. Then about a couple weeks ago the car would just randomly not start. You would know when it wasnt going to start because if when you opened the door and the dome light didnt come on it wouldnt start, which I found very odd. If you opened the door and the dome light came on it would start fine although still run poorly. When it wouldnt start it would crank but no fire. He said the ECM went bad again because that was the same exact thing it did when he got the car, and a new ECM cured it. If you let it sit for awhile and cycled the ignition a couple times it would start. Sometimes it would only need to sit for a few minutes, other times a day or more. About a week ago it left him sit and we could not get it started so we decided to replace the ECM, and the car ran fine. No rough idling, no slipping trans, and great power. It ran like new again. For about 3 days it ran fine, then all at once the check engine light came on again and it died once more. After doing some research I thought maybe the PROM went bad and wasnt delivering fuel. He had a spare PROM that he swears is good which we put in and nothing. So thinking it was a faulty ECM, we once again replaced that and still nothing. No dome light and it will just crank and crank. Ive been working on vehicles since I was old enough to hold a wrench and this one has me perplexed. The oddest part about it to me is the whole dome light thing. I had similar problems on a 1976 Chevy pickup but that is a completely different beast. That turned out to be a bad fusible link. Any help would be greatly appreciated, he relies on this car to get to work and presently he is borrowing my old chevy truck to get to work and back and im at my wits end with this car. Thank you so very much.
have the same problem?
Monday, January 26th, 2009 AT 3:00 PM