1995 Oldsmobile 88 Repair Question
Asked on April 18, 2010
1995 Oldsmobile 88 engine not running smooth
Engine Mechanical problem
1995 Oldsmobile 88 6 cyl Front Wheel Drive Automatic 160000 miles
the engine on my olds 88 LSS seems to struggle a bit. I changed the spark plugs(put in factory recommended)spark wires. I had a new gas filter installed. Engine doesn't run smooth in idle. Car gets great gas mileage and has get up and go on the expressway. Did I miss something?
john
1995 Oldsmobile 88 6 cyl Front Wheel Drive Automatic 160000 miles
the engine on my olds 88 LSS seems to struggle a bit. I changed the spark plugs(put in factory recommended)spark wires. I had a new gas filter installed. Engine doesn't run smooth in idle. Car gets great gas mileage and has get up and go on the expressway. Did I miss something?
john
Answer
Replied on April 25, 2010
Clean out the idle air control valve and see what happens also check below items
Engine running rough or misfiring can be cause by the following:
1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.