1993 Toyota 4Runner power loss

Tiny
HOLLYSWIN
  • MEMBER
  • 1993 TOYOTA 4RUNNER
Engine Performance problem
1993 Toyota 4Runner 4 cyl Four Wheel Drive Manual

idls fine put looses power going up hill or in third gear noticeing it getting worse starting in second gear now
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Saturday, October 9th, 2010 AT 4:58 PM

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Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, jerking, 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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Sunday, October 10th, 2010 AT 2:26 AM

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