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Explorer running rough

Tiny
JTRUCKN
  • MEMBER
  • 1998 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 239,000 MILES
My 1998 ford explorer, idles rough, stumbles on accelleration, and lacks take off power, once it gets going it s fine, any ideas where to start? Already checked for vacume leaks, bad gas, not the problem
Monday, April 11th, 2011 AT 3:03 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light on and when was the last tune-up?

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.
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 and keep testing.
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Monday, April 11th, 2011 AT 3:23 AM
Tiny
JTRUCKN
  • MEMBER
  • 2 POSTS
Yes and I am going to run the codes, this just started all the sudden. Wondered if it was a common problem thanks !
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Monday, April 11th, 2011 AT 3:52 AM

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