Six_leaker
New member
- Joined
- Mar 7, 2007
- Messages
- 477
Fuel pressure
Update: I tried a good Ficm but still the same and my fuel pressure is good at 48psi cranking, and I even blocked off the fprv just to make sure I wasn't returning my fuel to the tank. Iam really stumped lol
Fuel pressure
Your answer is above.
I got one in the shop with 14,500 miles on a new hpop. It started to start hard like high pressure oil was slow building so I put a mechanical guages on it to verify it. Then I pulled the reg and found a large piece of metal stuck in the screen. I never trust the scan tool to verify high pressure oil when cranking.
That sucks. I was hoping for something simple to be causing it.
You can disable either entire bank and they still run. One dead cylinder causing a no-start can really only happen with a shorted injector or wiring, which we have seen. On the contribution test you regularly shut off injectors to find problems. If your injector is not seated correctly and you are pushing cylinder pressure into your fuel supply you can cause a no-start.
Forget a copper washer or have 2 in that hole?
Take a glow plug and knock the center out of it. Braze a shop air fitting onto the threaded part and apply shop air to that cylinder with the valves closed on that cylinder. Where do you hear air? Exhaust, intake(pull egr valve), or crank case? This will narrow down exhaust or intake valves or burnt/cracked piston or rings. Got a bore scope?