1995 Buick Regal engine won't stay running

1995 BUICK REGAL

70,000 MILES • 6 CYL • FWD • AUTOMATIC

TEXDRAG1!

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Engine died while coming to a stop. Some chugging then no power, then stall. It is very difficult to resart. Need to hold the gas pedal down 1/4 to 1/2 then crank. once started, I have to maintain 3-4k rpm. while at that rpm, the engine will cycle between full power/ no power. Sometimes exhaust smells rich, sometimes lean. Fuel press. good. ignition module/coils good, no engine check light. The light does come on when key is in the on position, so bulb works. Injectors ohmed ok. Checked multiple ground connections and tightened. Checked vacuume hoses/ok. There is about 19 inches of vac. when I could get it to idle. I put a code reader on it and there was no fault codes. I could use some ideas.

Thanks.

Aug 7, 2010 at 4:16 PM

RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

Lack of acceleration,chugging,hesitating,bogging,misfiring etc. could be caused by one of the following below:

Inspect and test all the following items below-start here and comeback with the results.

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it.

Aug 7, 2010 at 9:24 PM

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