Mechanics

WONT GO OVER 20 MPH

1993 Jeep Laredo

1993 Jeep Laredo 6 cyl Four Wheel Drive Automatic 130000 miles

will not shift to second gear. Rpms goes up to high and wont shift
Avatar
Wests1994
July 16, 2010.




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.

Tiny
Rasmataz
Jul 16, 2010.
U think it maybe speed sensor

Tiny
Wests1994
Jul 16, 2010.
Check and test both the throttle position sensor and vehicle speed sensor
AD

Tiny
Rasmataz
Jul 17, 2010.

AD