Question about 2001 Jeep Grand Cherokee

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Once car is indrive the car will not go any faster than 20 mph without revving the engine after driving for about 5-6 minutes then it will go into gear and allow faster speeds, once you brake or stop it continues the same pattern. We have checked trans fluid it is fine, moves into drive, park, reverse no problem

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It is possible that the transmission filter and governor solenoid need to be changed. I have a similar problem. Try letting your Jeep warm up for about 15 minutes before you take off. This has solved my problem for now, but I know that I need to change the filter and while the tranny pan is off, going to replace governor solenoid.

Posted on Jun 17, 2009

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Definitively a transmission issue

Posted on Jun 16, 2009

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2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel2_bing.gif trim and canister purge.

3. Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

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6. Hold at a steady speed of 55 to 60 mph for five minutes.

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