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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 1634
Experience:  Owner at DJ Wilson
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I have a 2011 388 with a paccar 485 a fuller fro17210 and

Customer Question

I have a 2011 388 with a paccar 485 a fuller fro17210 and 370 rearends with 22.5 tires and I am only getting 4.3 mpg HELP
JA: What's the make/model/year of your truck? Engine type?
Customer: IT IS A PETERBULT(###) ###-####ITH A PACCAR 12.9L
JA: Anything else you want the truck mechanic to know before I connect you?
Submitted: 8 days ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 8 days ago.

Hi my name is***** will be glad to try to help. Are there any fault codes logged in the ECM? Are you hauling heavy and all highway , city, or mountain terrain? Any color smoke you are having?

Customer: replied 8 days ago.
Highway, mountain, no smoke and not heavy even empty No power
Expert:  Daniel Wilson replied 7 days ago.

Any fault codes logged ? Check engine light on or coming on intermittently?