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1995 Chevy Lumina FALLS ON ITS FACE

Tiny
KEVIN MERKEL
  • MEMBER
  • 1995 CHEVROLET LUMINA
Engine Performance problem
1995 Chevy Lumina 6 cyl Two Wheel Drive Automatic

I HAVE 1995 CHEVY LUMINA VAN IT WILL START AN IDLE BUT WHEN YOU PUT IN GEAR AND TRY TO DRIVE IT IT FALLS ON ITS FACE ABSOLUTELY NO POWER BARELY MAKE IT TO 10 MPH I PUT IT ON A SCANNER AND CAME BACK AS THE THROTTLE CONTROL SENSOR CHANGE IT AND STILL HAD SAME PROBLEM NEED SOME ADVICE PLEASE AND THANKYOU
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Saturday, December 5th, 2009 AT 2:51 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the following:

Oxygen sensor
Catalytic converter

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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Saturday, December 5th, 2009 AT 3:09 PM

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