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98 Eclipse - HESITATION/SPUTTERING/ STALLING

Tiny
MITCHE2001
  • MEMBER
  • 1998 MITSUBISHI
CAR: 1998 MITSUBISHI ECLIPSE - 2.0 NON TURBO - 84K MILES - AUTOMATIC.

PROBLEM: The car hesitates and sputters when accelerating. Wants to leach forward when at a stop and tends to stall when trying to accelerate from the stopped position.

WORK DONE: I have replaced the Fuel Pressure Regulator, Fuel Filter, Spark Plugs/Wires, PCV, all Vaccum Lines, Throttle Positon Sensor and I removed the Fuel Injectors and verified they work and are not clogged. There are no computer codes. I am at a complete loss. Does anyone have any ideas what may be wrong?
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Monday, October 15th, 2007 AT 8:43 AM

3 Replies

Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Hey Mitche2001,
A faulty/biased O2 sensor would cause that condition. Additionally some other things to check would be the output of the coilpack (a nice white/blue spark or w/ a kv meter if ya got one), coolant temp sensor may be faulty, creating a lean mixture causing the skip/hesitation. Let me know!

Chris
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Monday, October 15th, 2007 AT 8:51 AM
Tiny
MITCHE2001
  • MEMBER
  • 2 POSTS
Chris,
Thanks for your help. When I went to pull the plug wires again, I found them covered with oil. I had developed an oil leak into the spark plugs. I replaced the valve cover gasket and bought new wires. All the problems have been solved.
Thanks again,
Mitch
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Friday, October 19th, 2007 AT 10:15 AM
Tiny
CARUNDELL
  • MECHANIC
  • 602 POSTS
Thats great news mitch!

Chris
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Friday, October 19th, 2007 AT 1:31 PM

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