Mechanics

GMC TRUCK SENSOR PROBLEM

1986 GMC Truck

Engine Performance problem
1986 GMC Truck V8 Two Wheel Drive Automatic

my truck takes about 10 seconds to pick up speed and has a little miss to it
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Chamy
February 25, 2010.



Hesistating/lacking acceleration -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 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.

Rasmataz
Feb 25, 2010.