1997 Chevy Camaro Car stumbles

BMWOWNER

MEMBER
1997 CHEVROLET CAMARO
V8
2WD
AUTOMATIC
79,000 MILES

First thing in the morning when the car is cold, it runs fine. As it warms up, it wants to stutter, miss, etc. If I turn on the a/c it almost dies. Does it if i'm in drive or reverse. The car is stock and the opti, plugs, and wires are around 2yrs old.I'm not getting any codes, so I don't know where to check next. Figure if a sensor was bad, I would get a code or something. Any ideas?Thanks

Friday, May 22nd, 2009 AT 6:59 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Try cleaning out the idle air control valve

Possible Causes of Engine Hesitating and Stumbling

Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires

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Friday, May 22nd, 2009 AT 7:30 PM