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2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out
Posted to Chrysler Driveability on 2/19/2009 8 Replies

Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a...

8 Replies Received (View Replies)

  Related Documents & Media  2003 Jeep Grand Cherokee Laredo

 
Message Closed w/FIX

car Vehicle Data

2003 Jeep Grand Cherokee Laredo

VIN 1J4GW48S33
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Cuts Out
OccursAlways

Trouble Codes

P0123Throttle Position Sensor Circuit High Voltage
P0442EVAP System Small Leak Detected
P0455EVAP System Very Large Leak Detected
Message Closed w/FIX

car Vehicle Data

2003 Jeep Grand Cherokee Laredo

VIN 1J4GW48S33
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Cuts Out
OccursAlways

Trouble Codes

P0123Throttle Position Sensor Circuit High Voltage
P0442EVAP System Small Leak Detected
P0455EVAP System Very Large Leak Detected