I changed my fuel filter and air filter again last night, more so because I was curious than it needed it. I just changed them in December, anyway...I was Kinda chasing a problem in the higher tunes (5,6), in 6 especially when you push the loud pedal past say 1/4 to 1/3 the truck lays down. meaning It actually pulls harder at 1/4 throttle than WFO throttle. I figured I would check the fuel press while I was in there. It was at 43 PSI so i pulled the FPR apart and did the bb trick. the pressure jumped up to just over 70. and it helped quite a bit with the problem but it is still there. Could it be the HPOP dying? I have also noticed that sometimes my injectors change sound during idle. like maybe the high pressure oil comes and goes???

what do you guys think?

also whats the best way to check the high pressure oil? where do I plumb the gauge in?

Sorry for the rambling
John

 

Damn, your in howell.

If fuel was a bit cheaper, I could bring my scangauge down and we could scan it.

I'll be down that way towards the end of the month and we could get together and do it.

My truck is the same way on the Go Pedal.
WOT and its a dog.

 

That would be awesome... I would gladly pay for fuel any time your up to it. Do you have the equipment to do a buzz test or cylinder contribution?

So your truck does it too huh? is it the nature of the beast?

 

Sorry if my PM went though a few times.
was having issues with my internet (as always.)