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1985 Chevy Blazer no acceleration

Tiny
JOHNREB80
  • MEMBER
  • 1985 CHEVROLET BLAZER
Engine Performance problem
1985 Chevy Blazer 6 cyl Two Wheel Drive Automatic

i just changed the fuel pump thinking that would fix the problem but it didnt. I cant get the car to go above 45 if it gets above 45 it starts to try to stall on me.
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Sunday, February 7th, 2010 AT 9:07 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

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)
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Cap and rotor

Note:If it doesn't apply disregard.
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Monday, February 8th, 2010 AT 5:35 AM

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