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A lot of reading but think this is my first post. 01 LB auto, stock 236k, Texas truck, 3rd owner. Truck stalled while idling as the trailer was loaded. Restarted after a couple cranks. No engine codes. Driving home from scrap recyclers, at 50mph the truck started to miss badly. Check engine light came on. It would idle fine. Had truck flat bedded home. After a day it would not start. Pulled 251, 252, 1688 codes with scan tool. Have air dog lift pump. It puts out 12psi on gage and was changed out for new a couple months prior. Was only changed cause it had 100k on it.
Had power and ground at VP injection pump plug. Hot wired VP, still no fuel at injector lines.
As I understand, when changing vp, the following should also be replaced: cam sensor, lifter cover gasket, power steering seal, vacuum pump seals, power steering hoses, fuel line grommets, fuel line gaskets, overflow valve. Anything else while 'in there?" Thank you.
Had power and ground at VP injection pump plug. Hot wired VP, still no fuel at injector lines.
As I understand, when changing vp, the following should also be replaced: cam sensor, lifter cover gasket, power steering seal, vacuum pump seals, power steering hoses, fuel line grommets, fuel line gaskets, overflow valve. Anything else while 'in there?" Thank you.
