2001 Mitsubishi Eclipse misfire

Tiny
DULLIN30
  • MEMBER
  • 2001 MITSUBISHI ECLIPSE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 147,000 MILES
My eclipse has developed a misfire after it has been driven for about an hour or so! After the engine really warms up the rpm gauge will spike slightly and the car will shutter a little bit and it slowly get worse the further you drive it. My check engine light went on yesterday so I took it to my mechanic and he said the computer said that the error code was a bad sensor in the distributer so he replaced the distributor1 but this has not solve dteh problem, the car runs great other wise, but when it gets real warm it will misfire!
Monday, May 10th, 2010 AT 8:59 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
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Monday, May 10th, 2010 AT 9:04 PM

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