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International Automotive Technicians Network
1997 GMC G3500 5.7L MIL Lamp on
Posted to GM Driveability on 8/12/1999

Hello Techs, We have a 97 GMC Savana Van with a 5.7 vortec engine. Its a delivery van with 153,000 miles on it. The problem is a lack of power under load. Runs ok at light acceleration but falls on its face with moderate to heavy acceleration. It seems to ...

 
Message Closed w/FIX

car Vehicle Data

1997 GMC G3500

VIN 1GTH639R7V
Engine5.7 L / 8 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways, Under Load

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
Message Closed w/FIX

car Vehicle Data

1997 GMC G3500

VIN 1GTH639R7V
Engine5.7 L / 8 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways, Under Load

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage