1998 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on
vehicle runs great when cold as soon as vehicle warms up starts running bad misfiring back firing and if you let it run in shop for 15 min after hot vehicle will stall and not restart until cooled off. fuel pressure never falls off. when vehicle starts acting ...
FIX posted 9/21/2006
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Message Closed w/FIX
Vehicle Data1998 Jeep Grand Cherokee Laredo
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1998 Jeep Grand Cherokee Laredo
VIN | 1J4GZ58S9W |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy, MIL Lamp On |
Occurs | Hot |
Trouble Codes
P0320 | No Crank Reference Signal To PCM |
P1391 | CKP Or CMP Sensor Signal Intermittent |