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2003 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on
Posted to GM Driveability on 9/2/2010 8 Replies

Intermittent P1404 closed EGR performance fault. Light reoccurring more frequently now. Vacuum pump little noisy, but provided consistent 25" of vacuum. Tested vent solenoid and throttle solenoids, ok. Inspected all vacuum hoses, ok. Replaced EGR valve. Light ...

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  Related Documents & Media  2003 Chevrolet Silverado 2500 HD

 
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Silverado 2500 HD

VIN 1GCHK23163
Engine6.6 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P1404EGR Valve Stuck Closed Malfunction
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Silverado 2500 HD

VIN 1GCHK23163
Engine6.6 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P1404EGR Valve Stuck Closed Malfunction