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2001 Chevrolet Silverado 2500 HD 8.1L Poor Fuel Economy
Posted to GM Driveability on 6/6/2013 28 Replies

i have a problem with this 8.1. now i know its not known for its fuel efficiency but the customer swears that it was getting between 11 or 12 mpg. now it is getting 5 to 6 mpg.i have drove this truck and scanned for everything, iam not seeing any [...] checked...

28 Replies Received (View Replies)

  Related Documents & Media  2001 Chevrolet Silverado 2500 HD

 
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK23G31
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways
Message Closed w/FIX

car Vehicle Data

2001 Chevrolet Silverado 2500 HD

VIN 1GCHK23G31
Engine8.1 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy
OccursAlways