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2003 Chevrolet Trailblazer LT 4.2L MIL Lamp on
Posted to GM Driveability on 4/5/2011 21 Replies

I originally got this one in for a P1481 which was a fan speed loss of signal code. So I replaced the fan clutch and there is now a fan speed signal to the PCM. But now I have this P0128 code. It does have a new thermostat that is about 3 months old or so. Sit...

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  Related Documents & Media  2003 Chevrolet Trailblazer LT

 
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Trailblazer LT

VIN 1GNDT13S23
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0128Cooling System Malfunction
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Trailblazer LT

VIN 1GNDT13S23
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0128Cooling System Malfunction