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1997 Mitsubishi Eclipse

Tiny
BRENDABICKERTON
  • MEMBER
  • 1997 MITSUBISHI ECLIPSE
Engine Performance problem
1997 Mitsubishi Eclipse 4 cyl 120000 miles

My car has been losing power, especially, on the highway. The rpms increase with no acceleration. Acceleration returns but is sporadic and it does do better under 40mph.
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Sunday, March 14th, 2010 AT 5:20 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below.

Inspect and test all the following listed below and get back with some results

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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Sunday, March 14th, 2010 AT 6:28 PM

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