Date: 23 Jan 1998 15:56:19 GMT From: saab85900nopsamcom (Saab85900) Subject: Re: Check Engine light
>robert.michaud wote: >my 89 Saab 900S has a check engine light that flickers frequently. When I >accelerate, it stays out; back off and the light flickers on/off again. >It stays mostly off and after 15 minutes or so, rarely comes back on >again. I have 85,000 miles on the engine and a recent owner. Only way to know for sure is to put a mechanical oil pressure guage on and check the pressure under the same conditions. Good news would be that you have a bad sender unit. Bad news would be that the bearings are worn. You might pull an oil sample and send to a lab. If you have abnormal metal wear, such as from bearings, it will show up. Cost $15-20, and well worth it. You should consider using synthetic engine oil if you aren't already. Won't replace missing metal, but will almost eliminate further wear. The right choice can also give you much longer drain intervals. Dick in falls Church, VA Using and selling AMSOIL (First in Synthetics) over 20 years
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