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  #13  
Old 01-31-2011, 10:38 AM
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Re: wj acceleration problems

It could be the CAT going bad, They usually really rear their ugly head the harder you press the gas pedal. Usually act fine when driven easily but I have seen them act other ways too. You ned to check fuel pressure under load when the problem is happening. Sitting in the driveway with good fuel pressure mean nothing except the fuel pressure is working. It may not supply the fuel pressure needed at speed and load. But that would not cause your tranny to overheat.

When a crank sensor usually goes the car typically will not run at all.
Same can go for the CAM sensor, they also can trigger a code from one another. Sometimes they share thye smae OBD2 code for CAM and Crank sensor.

Is the 0300 code the only one you have seen?
Are your cooling fans working properly?
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  #14  
Old 01-31-2011, 11:39 AM
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Re: wj acceleration problems

The CPS should throw a code, I forget what one exactly from memory, P0320 I think. Granted it may not always throw a code. Mine went last year and the engine would just stop dead. Like a hard jolt. It would sometimes to do while cruising along, then bang! But the engine would keep on running, check light would come on. Only twice did it actually stall completely and both at very low speeds. It's located on the transmission and is a bit of pig to get to and whatever you do, don't drop the bolt!
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  #15  
Old 01-31-2011, 04:43 PM
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Thumbs up Re: wj acceleration problems

Had three catalytic converters installed and the jeep is back running like it should. It did not like the restriction in the exhaust system, probably due to the plugs not being changed per the maintance schedule and unburned fuel contaminating the cats.. Learn from my lesson and don’t let this happen to you….. Change plugs every 30k and save the $1,000. I spent on new cats. Thanks for all your help
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Old 02-01-2011, 04:58 AM
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Re: wj acceleration problems

Good to hear she's running well again
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