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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
Saturday, October 9th, 2010 AT 4:58 PM

1 Reply

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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