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2003 Chevrolet Silverado 2500 HD 6.6L Poor Fuel Economy
Posted to GM Driveability on 5/21/2009 5 Replies

gm diesel has been quiet and good on gas when first bought. after injectors went out and was warrantied by dealer a year ago. truck sounds more like a diesel unlike before. gas mileage has gone down and engine oil doesnt turn black at all. oil looks like its b...

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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
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Silverado 2500 HD

VIN 1GCHK23163
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways