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Car wont go over 20 mph

Tiny
MEGEN
  • MEMBER
  • 1995 FORD ESCORT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 137,000 MILES
My 1995 ford escort will not go over 20 mph and wont shift into the next gear. This happend about 2 years ago but a mechanic cleaned some plugs and fixed some melted wires and worked for 2 years and now it is happenig again. What could cause it?
Tuesday, January 18th, 2011 AT 6:21 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating********, bogging, misfiring etc. 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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Wednesday, January 19th, 2011 AT 5:52 AM

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