2002 Safari can't climb hills

Tiny
ALDAN
  • MEMBER
  • 2002 GMC SAFARI
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
2002 GMC Safari lacks power going up hills. Have to run in 3rd gear and some times in 2nd
Sunday, July 17th, 2011 AT 11:27 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hesitation:

Could be one of the following below -check and test:

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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Thursday, August 11th, 2011 AT 10:51 AM

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