The maf and tb have been cleaned 2 ports were plugged for the egr valve. It caused a lean code and egr code I cleaned the tb and they went away. I'll try a fuel filter when I get paid. where is the fuel filter located on our trucks?
fuel filter is only $10. make sure to let pressure out of lines by turning the little schrader valve under the hood on the passenger side on the fuel rail.
how big the rpm is jumping sounds like a miss fire in multiple....coil pack out? put a plug in wrong? these are my guesses. same thing on my aurora it would hall if u slammed it but the shop put wrong size plugs in it and 1 coil pack was out
its not a mis it does it sometimes and sometimes it doesnt I fixed all of my misfires and it it was a misfire the cel would be on
i usually keep $100 for an emergency thats all i got till i get paid i never touch it unless i have to i spent the $2500 i had saved up for a down payment on a new truck on tractor parts to fix our kubota and for a oilchange on our 4020 and 4320 and the last bit of it is going to a brake line for the 4320