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Car Forum / Driving, Maintenance, Tuning / General Car Topics / April 20071998 Oldsmobile88
I have a 1998 Olds 88 with about 83,000 miles. It recently started acting up while driving down the road. The engine will completely stall out or die. Speed or RMP doesn't seem to matter when this occurs. I have experienced this phenomena 10 times I have had 2 diagnostic checks done to the vehicle and Oldsmobile has not been able to troubleshoot the problem. The dealer has taken it out to test drive, but off course the problem never happens for the pros. Please let me know if anyone has any suggestions. Thanks Jeff Does it restart right away or won't it start for a while? Have you checked the spark or fuel when it dies? Have you ever changed the fuel filter? I've had this kind of problem with trash in the gas tank, a clogged filter or bad fuel pump can cause it, as can a bad coil. I don't know about these engines but something like that can also happen on some engines with a bad throttle position sensor. Jeff DeWitt > I have a 1998 Olds 88 with about 83,000 miles. > It recently started acting up while driving down the road. The engine will [quoted text clipped - 6 lines] > Thanks > Jeff I had the same problem with a Lumina, but it would die at stoplights and immediately restart. It turned out to be a crankshaft position sensor. Roy > Does it restart right away or won't it start for a while? Have you > checked the spark or fuel when it dies? Have you ever changed the fuel [quoted text clipped - 17 lines] >> Thanks >> Jeff > I have a 1998 Olds 88 with about 83,000 miles. > It recently started acting up while driving down the road. The engine will [quoted text clipped - 6 lines] > Thanks > Jeff Hi Jeff. Many things could cause this problem BUT I have ran across 2 of these cars that did this and found an itermittent fuel pressure regulator leak. What happens is at random the regulator will spit fuel down the vacuum line that will spike the O2 sensors to rich there by causing the PCM to fully lean out the injectors. It will act as if someone shut the key off but will start right back up and set no codes. Ck the regulator very carfully for any signs of leakage. One drop is all it takes. Hope this helps.
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