- - 1997 gmc sierra 2500 using too much gas
(https://www.truckforums.com/forum/chevy-silverado-gmc-sierra-forum-11/1997-gmc-sierra-2500-using-too-much-gas-8167/)
rd3977
10-11-2008 07:22 PM
1997 gmc sierra 2500 using too much gas
I have a 1997 sierra that only gets 4 mpg. What might be causing this ?