2000 Chevy Camaro Hesitation under accleration

BLACKSHEEPSS

MEMBER
2000 CHEVROLET CAMARO
V8
2WD
MANUAL
125,000 MILES

I hope you can help me. I have a 2000 Chevrolet Camaro SS with almost 125,000 trouble free miles. For the last two years under accleration the car hesitates as if it is not getting enough fuel. I had a 91 Tracer with a bad fuel pump at one time, however the hesitation is not as severe. When I get on the gas from a stop and after I shift the car hesitaties for a few seconds. When I floor the accelerator the problem subsides. It happens when teh engine is cold and hot. I have done research and I think the problem is the Mass airflow sensor, or the MAP sensor. I do not want to swap out multiple parts and not fix the problem.

Wednesday, May 13th, 2009 AT 8:58 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

2000 Chevy Camaro Hesitation under accleration

Possible Causes of Engine Hesitating or 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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Thursday, May 14th, 2009 AT 4:57 AM