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1999 Chevrolet Truck Repair Question


Topics covered: Sensor, Spark, Catalytic converter.
Mileage: 265,000 miles.

Asked on August 6, 2011

Losing power while driving truck

What would cause my truck to lose power while driving down the road. I already replaced the distributor cap, the fuel filter, spark plugs & wires and catalytic converters.
Avatar Asked by jimduke

Answer

Replied on August 7, 2011

Do you have a check engine light and when was last tune-up??

Transmission could be slipping if not -its probably hesistating due to the following below

Oxygen sensors.
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.
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.

Tiny Answered by rasmataz
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