2002. Keep grand Cherokee

Asked by Jason Jun 06, 2019 at 09:52 PM about the 2002 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

I have a 2002 Jeep Grand Cherokee 4.0l And
it starts up and runs great every time but
once it warms up it’s bid spotter dies
hesitates backfires when you leave it to be it
cools down it will start right back up got a
new crank sensor new PCM new immobilizer
No ignition coil and new cam sensor so if
anyone could please help me with this issue
so I can get my watch go on the road it will
be great it’s hard enough to ask for advice

3 Answers
42,870

Hornet_2497 answered 4 years ago

I was thinking crankshaft position sensor too, code P0320. Check your fuel pressure at the Schrader valve on the fuel injector rail (55 psi). Or at least replace the fuel filter which includes the fuel pressure regulator. Scan for codes too.

Mark helpful

Jason answered 4 years ago

Has several codes ,about ten to be exact but I would like to think it is the fuel pump or a delivery problem as well . That’s the only 2 things that have not been reprogrammed also I might add. Another question how important is it to get the pcm reprogrammed to the Jeep after pulling one from a junkyard ?

Mark helpful

Your Answer:

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