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2002 Chevrolet Avalanche 1500 Z71 5.3L MIL Lamp on
Posted to GM Driveability on 7/15/2011 11 Replies

hello-had this avalanche come in today. p0449, p0452. removed vent valve from truck and bench tested it with 12v and it seemed to function as intended. apply 12v and ground and it seals shut. checked harness and have 12v feed at valve harness connector. re-ins...

11 Replies Received (View Replies)

  Related Documents & Media  2002 Chevrolet Avalanche 1500 Z71

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Avalanche 1500 Z71

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0449PCM Internal Fault
P0452Fuel Tank Pressure Sensor Circuit Low Voltage
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Avalanche 1500 Z71

VIN 3GNEK13T42
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0449PCM Internal Fault
P0452Fuel Tank Pressure Sensor Circuit Low Voltage