no fear wrote:
Hi
I have a 2002 Jeep Liberty 2.5 CRD. She starts easy , no problem with power, and if I drive relaxed I can drive forever there is no problems. As soon as I accelerate hard, pushing the revs high, and I slow down and stop, she idles only on 3 cyl. Then if I give a little bit of gas, the 4th cyl will come in and idles perfect. If I leave the gas she idles on 3 cyl again. This will carry on until I switch off the Jeep and leave it to stand for 30min, than it is back to normal, until I push her again. Can it be a faulty injector. I had the Jeep at the agents, but they cannot find a problem.
Regards
How do you know it is idling on only 3 cylinders?
You need to try get some codes out....the 2002 CRD does work with the "key" trick.
Turn the ignition ON/OFF rapidly 4 times without starting the engine.
On the forth ON sequence...leave ignition ON and the odometer should display codes starting from the oldest to the newest...it takes a few attempts to get the ON/OFF sequence to work.
Bear in mind that using this method sometimes the last two digits are transposed!
The early Export CRDs have a Racor filter head....looks different to the newer Racor filter heads everyone here is fitting but the pumping action is similar.
Have you replaced the filter recently and have you cleaned the MAP sensor on top of the intake manifold?