2004 Chevrolet Trailblazer LS 4.2L No Start
Hello and thanks for viewing this help request. This vehicle is a no start. Customer removed engine from truck and sent it to machine shop for rebuild. He reinstalled rebuilt engine and he states it started up and ran fine for about 30 minutes and then the eng...
FIX posted 6/30/2015
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Vehicle Data2004 Chevrolet Trailblazer LS
Trouble Codes
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Vehicle Data
2004 Chevrolet Trailblazer LS
VIN | 1GNES16S24 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | No Start |
Occurs | Always |
Trouble Codes
P0122 | Throttle Position Sensor Circuit Low Voltage |
P0223 | Throttle Position Sensor 'B' Circuit High Voltage |
P0621 | Generator L-Terminal Circuit Malfunction |