1990 GMC Sierra Repair Question
Asked on December 18, 2011
WHAT WOULD CAUSE MY TRUCK TO SPUTTER WHEN INCREASING SPEED?
IT TAKES OFF AND DRIVES FINE, BUT WHILE DOING BETWEEN 45 AND 55 WHEN TRYING TO INCREASE SPEED IT WILL SPIT AND SPUTTER LIKE ITS NOT GETTING ENOUGH FUEL.
Asked by ROB WILSONAnswer
Replied on December 18, 2011
Could be caused by one of the following below
Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
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 it and keep testing.
