2003 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on
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 ...
Summary posted 9/22/2010
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Message Closed w/Summary
Vehicle Data2003 Chevrolet Silverado 2500 HD
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2003 Chevrolet Silverado 2500 HD
VIN | 1GCHK23163 |
Engine | 6.6 L / 8 cyl / DIESEL |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Trouble Codes
P1404 | EGR Valve Stuck Closed Malfunction |