1981 Chevy Silverado LACKING POWER

50,000 MILES • V8 • 2WD • AUTOMATIC
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HEAVYCHEVY_81
  • MEMBER
  • 1 POST
I have weak pull power to start going, but once i reach 25 mph the truck is running fine.
Jun 13, 2010 at 1:29 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking,fuel filter or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
Jun 13, 2010 at 1:32 PM
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