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1995 Mercury Cougar
January, 31, 2011 AT 3:12 AM
I had a bad misfire for about 2 months, I changed the plug wires and that fixed it.
Now I have a problem with hesitation on acceleration as well as rpm dropping down to 1k rpms while the engine is under load. Note: this only happens when the car is warm, when it is cold it is fine.
Also the cars idle after its warmed up stumbles a little bit.
Things I've Changed:
spark plug wires
Any idea what could cause this?
FOUND 4125 RELATED QUESTIONS
Rodeo - Can't Remove One Spark Plug
January, 31, 2011 AT 3:14 AM
Could be caused by one of the following below
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Manifold absolute pressure sensor.
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
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 and keep testing.
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