Re: 97 3500 454 4x4 project
That sucks. Do you have any codes being set though?
The only time I ever got 9mpg with my 97 454 (4.10’s) was puking a trailer with the surge brakes sticking on.
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1972 K10
1986 K30 crew cab dually
2002 Z06
2007 Escalade
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