Ok, so after I have gotten my tranny rebuilt I was heading home from work. All of a sudden the truck bogs out. So I let off the throttle. After laying in traffic for 20 min the bogging occurs at part throttle too as well as WOT. Took it home and let it sit for a day.
Next day checked the fuel pressure:
Key turned and ignition off - 62 psi
Ignition on at idle - 50-52psi
So I assumed that my fuel pressure was good. Pulled the MAF and sprayed the crap out of it with MAF cleaner as well as the IAT and the harnesses. Got a little more throttle response out of the truck after doing this. I figured great!
This morning after my hour drive to work accelerating out of the toll booths the truck bogs a little bit again at 3/4 throttle. Got to work and hooked up the fuel pressure gauge again. Same a reading at idle and with key on. Then decided to drive with the gauge in.
Took off at WOT and saw the gauge drop to about 28 psi! Part throttle she sits at about 40 psi. So I am definitely not maintaining my pressure.
What is my fuel pressure supposed to be during engine load? Do I have to maintain above 60 psi all the time? How else can i further troubleshoot to confirm that it is my fuel pump and not my regulator, voltage to pump, etc? I just want to make sure my pump is crap because I just changed it last year and only have about 25k miles on it. And I HATED doing it!
Next day checked the fuel pressure:
Key turned and ignition off - 62 psi
Ignition on at idle - 50-52psi
So I assumed that my fuel pressure was good. Pulled the MAF and sprayed the crap out of it with MAF cleaner as well as the IAT and the harnesses. Got a little more throttle response out of the truck after doing this. I figured great!
This morning after my hour drive to work accelerating out of the toll booths the truck bogs a little bit again at 3/4 throttle. Got to work and hooked up the fuel pressure gauge again. Same a reading at idle and with key on. Then decided to drive with the gauge in.
Took off at WOT and saw the gauge drop to about 28 psi! Part throttle she sits at about 40 psi. So I am definitely not maintaining my pressure.
What is my fuel pressure supposed to be during engine load? Do I have to maintain above 60 psi all the time? How else can i further troubleshoot to confirm that it is my fuel pump and not my regulator, voltage to pump, etc? I just want to make sure my pump is crap because I just changed it last year and only have about 25k miles on it. And I HATED doing it!