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1991 Ford Crown Victoria Loss of power up hills

Tiny
CLIMBINGIVY
  • MEMBER
  • 1991 FORD CROWN VICTORIA
  • V8
  • 2WD
  • AUTOMATIC
  • 92,000 MILES
This car was bought from it's original owner, but had sat idle for several months.
It ran ok until it had the trans fluid changed and a new fuel filter put in.
It now loses power up hills and seemingly won't change gears after 35 mph.
I've been told it's the transmission, but I would like to know what else to check out before rebuilding the transmission.
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Wednesday, June 9th, 2010 AT 1:30 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
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.
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.
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Wednesday, June 9th, 2010 AT 1:45 PM

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