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1993 Jeep Laredo wont go over 20 mph

Tiny
WESTS1994
  • MEMBER
  • 1993 JEEP GRAND CHEROKEE LAREDO
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
Will not shift to second gear. Rpms goes up to high and wont shift
Friday, July 16th, 2010 AT 9:48 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If the transmission is not slipping-see below:

Possibilities: Inspect and test all the following listed 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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Friday, July 16th, 2010 AT 10:20 PM
Tiny
WESTS1994
  • MEMBER
  • 2 POSTS
U think it maybe speed sensor
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Friday, July 16th, 2010 AT 10:44 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test both the throttle position sensor and vehicle speed sensor
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Saturday, July 17th, 2010 AT 1:45 PM

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