2000 GMC Jimmy jerks

PCJTASB

MEMBER
2000 GMC JIMMY
6 CYL
4WD
AUTOMATIC
118,660 MILES

Recently I have had a problem with my truck when it is hot outside and ive been driving for awhile it jerks during takeoff usually thought the first 2 gears im curious what could be causing this once the truck cools down it doesn't do it im hoping I can discover what the problem is before it becomes more constant. I have checked the fluid its still red and full and the oil was just recently changed

Saturday, July 24th, 2010 AT 1:33 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

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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Monday, July 26th, 2010 AT 1:40 AM