Engine Idle/Stalling

2001 CHEVROLET MONTE CARLO

6 CYL • FWD • AUTOMATIC

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My '01 Monte Carlo SS is giving me engine idle/stalling/throttle hesitation issues when the engine is cold. Once I start driving and it warms up, the problem disappears. I just replaced the MAP sensor, Idle Control sensor, Mass Airflow Sensor, and another sensor that has a hose connecting to the EGR valve. What else can it be?

Jan 5, 2011 at 11:29 PM

RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
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 and keep testing.

Mar 27, 2011 at 12:10 AM

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