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Idle, acceleration, bogs and loses power to climb hills

Tiny
ANNETTE TIGHE
  • MEMBER
  • 1994 PONTIAC FIREBIRD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 250,000 MILES
I have a 1994 pontiac sunbird, 4 cylinder, 2 litre, I put a new computer and a new starter in it. It starts right up but it doesn't run right. The plugs are new, there are no service engine lights on but it loses power when climbing a hill. It hesitates, it just doesn't run right. It is not squealing so its not t he fuel pump. Any ideas? Anything you can tell me would be greatly appreciated. I am a separated lady on fixed income and can't afford much. Please help me. It runs rough, loses power, stalls acceleration is very slow up hill.
Thank You
Annette






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Tuesday, November 30th, 2010 AT 2:36 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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 it
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Tuesday, November 30th, 2010 AT 2:57 AM
Tiny
ANNETTE TIGHE
  • MEMBER
  • 12 POSTS
Thank You I will get all of this checked. Annette
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Tuesday, November 30th, 2010 AT 3:12 AM

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