tonkadoctor
Full Access Member
For those that havn't followed my previous thread, here's the quick and dirty...
She starts hard cold, runs great warm. Part of the problem was a worn timing cover and Lube pump which is fixed.
Put on a HP oil gauge, fuel pressure gauge and lube oil pressure gauge today and did a little testing to hopefully rule a few things out.
Me thinks it's time to scrape some do re me together for the injectors and a PCM reflash from Jody as there isn't much else that could cause it. I am quite pleased with the findings on the gauges today and damn glad I did it.
She starts hard cold, runs great warm. Part of the problem was a worn timing cover and Lube pump which is fixed.
- No trouble codes
- Entire GP system tested good
- Oil pressure builds fine now and resevoir stays full
Put on a HP oil gauge, fuel pressure gauge and lube oil pressure gauge today and did a little testing to hopefully rule a few things out.
- Fuel pressure at the filter housing inlet maintains a steady 52 PSI from idle to 90MPH with it floored...Not the greatest but still good...will do a shim mod in the regulator shortly to see if I can get it to maintain a nice 60 - 70 PSI I'll do a regulated return mod down the road as soon as I get lucky and get my paws on an Aeromotive regulator fer about $50 -$60
- HPOP pressure ran a nice 500 PSI at idle and would hold above 2200 - 2400 PSI after spiking to 3000 when keeping it floored so it's OK
(did have to shut down my testing earlier than I wanted at 90 MPH when I passed a cop
that thankfully
didn't mess with me for doing 90 in a 55 on a country road.......Havn't checked the gearing in this truck yet but it was still pulling hard wanting much more at 90 (IIRC 65 is about 2000 rpm so I think it has 3.55 or 3.73 in it.)
- Lube oil pressure stays at 14 PSI warm idle and maintains a nice 40 PSI running 55 mph at about 1800 so this gives me a nice warm fuzzy feeling about the engines bearings and other internals
- Check for oil leaking past the injector poppet valves cold
- Check for armature impact marks on the bottom of the solenoids
- Check armature clearance
- Check for loose poppet valve adjustment screws
- R&R rear main.......Again
- New O-rings in the oil cooler....OOPS wish I did it when it was out.
- New trans pan gasket.....Putting in the correct reusable pan gasket to replace the split cork gasket that was put in by the PO
![Sweet ;Sweet ;Sweet](/styles/default/xenforo/smilies/Thumbup19.gif)
Me thinks it's time to scrape some do re me together for the injectors and a PCM reflash from Jody as there isn't much else that could cause it. I am quite pleased with the findings on the gauges today and damn glad I did it.
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