Losing power while driving truck

Tiny
JIMDUKE
  • 1999 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 265,000 MILES

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.

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Saturday, August 6th, 2011 AT 11:53 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER

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.

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Sunday, August 7th, 2011 AT 2:26 AM

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