
2004 Chevrolet Tahoe LS 4.8L Poor Idle Quality, Hesitation, MIL Lamp on
HELP! This Tahoe has been to two shops prior when I first saw it. No throttle response, "reduced engine power" message, codes P0120, P2101, P2135 stored. First shop replaced the throttle body assembly and the pedal assembly. Problem went away for a few days, t...
FIX posted 8/14/2010
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Message Closed w/FIX
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VIN | 1GNEK13V54 |
Engine | 4.8 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0120 | Throttle Position Sensor Circuit Malfunction |
P2101 | Throttle Actuator System Malfunction |
P2135 | Throttle Position Sensor 1/2 Incorrect Voltage Correlation |
Message Closed w/FIX
Vehicle Data
2004 Chevrolet Tahoe LS
VIN | 1GNEK13V54 |
Engine | 4.8 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Hesitation, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0120 | Throttle Position Sensor Circuit Malfunction |
P2101 | Throttle Actuator System Malfunction |
P2135 | Throttle Position Sensor 1/2 Incorrect Voltage Correlation |