1987 Chevy Caprice my car loses accelration

Tiny
HEAVYCHEVY009
  • 1987 CHEVROLET CAPRICE

Engine Performance problem
1987 Chevy Caprice V8 Two Wheel Drive Automatic 17000 miles

my car losses accleration going up hill, it wont pick up speed until im back on flat land. We checked and it wasnt the fuel filter or catyltic converter

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Saturday, August 29th, 2009 AT 4:00 PM

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Tiny
RASMATAZ
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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, August 29th, 2009 AT 5:07 PM

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