1994 GMC Sierra Repair Question

Topics covered: Gas, Egr valve.
Mileage: 470,000 miles.

Asked on March 3, 2013

GMC Sierra Gas Problem

I have an bad egr valve and a bad iac valve will it cause my truck to run out of gas quite quickly and it has 470,000 klm

Asked by (pending member)

Replied on April 5, 2013

Those can influence gas mileage, yes.

Answered by blaze45 (expert)
395 answers provided