Hey guys...Need some help here if you can! My truck out of the blue started to run real rough just after starting it, a few min later she died. It appears to be a HPOP problem...IPR is 85% at idle if it starts and takes forever to build 500psi until it starts. When the oil is hot it won't start and it won't go above 325psi while cranking. I put in a new IPR and no change...there was no metal on the screen of the old one either...it was clean.
I made an adaptor to go into the HPOP rails under the valve covers and made a pig tail to close the IPR. Air test on left bank shows only a small leak under HPOP cover. Air test on right bank shows no leaks with ipr closed. But a huge air leak from the standpipe/branch tube connection area? I didn't think it would matter wether the ipr was closed or not for a leak there? I pulled the hpop cover and am about to pull the hpop to dig deaper.....should I pull the rail on the pass side and pull out the stand pipe to check? Im prety deap in her and im not really sure where to go from here to identify the problem.
I made an adaptor to go into the HPOP rails under the valve covers and made a pig tail to close the IPR. Air test on left bank shows only a small leak under HPOP cover. Air test on right bank shows no leaks with ipr closed. But a huge air leak from the standpipe/branch tube connection area? I didn't think it would matter wether the ipr was closed or not for a leak there? I pulled the hpop cover and am about to pull the hpop to dig deaper.....should I pull the rail on the pass side and pull out the stand pipe to check? Im prety deap in her and im not really sure where to go from here to identify the problem.