
1999 Jeep Grand Cherokee Laredo 4.0L Misfire
Just replaced Engine with know good running engine, (removed by me) from a donor vehicle. 110k on used engine. started up great, ran great and quiet. could rev up engine without issue. problem is after running for 5-10 minutes it idles great, smooth and quiet....
FIX posted 2/5/2014
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Message Closed w/FIX
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VIN | 1J4GW58S6X |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / FUEL INJECTED |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Hot |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
Message Closed w/FIX
Vehicle Data
1999 Jeep Grand Cherokee Laredo
VIN | 1J4GW58S6X |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / FUEL INJECTED |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Hot |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |