× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2002 Jeep Grand Cherokee Laredo 4.0L Misfire
Posted to Chrysler Driveability on 10/6/2007 17 Replies

cleared codes, ran it, drove it cold & hot, 40 miles all together, only got occasional misfires on 3, 4, & 5. leak down & compression test good, checked & replaced plugs, drove again, still occasional misfires, mostly on cyl 3. swapped plugs #1 with #3, inject...

17 Replies Received (View Replies)

  Related Documents & Media  2002 Jeep Grand Cherokee Laredo

 
Message Closed w/FIX

car Vehicle Data

2002 Jeep Grand Cherokee Laredo

VIN 1J4GW48SX2
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently

Trouble Codes

P0303Cylinder 3 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Jeep Grand Cherokee Laredo

VIN 1J4GW48SX2
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently

Trouble Codes

P0303Cylinder 3 Misfire Detected