Hello all, the powerstroke world is all brand new to me but i'm learning quickly, just not quick enough.
I'm helping a buddy who just picked up a 95 7.3L Powerstroke Turbo that won't start. Previous owner said the engine just flat out died as he was driving down the road and wouldn't start from there on. It cranks just fine but no attempt to start and no smoke. It will fire on ether (glow plug relay was disconnected).
This truck has been to 4 different mechanics to have codes read with no luck. "Scanner can't connect". So no codes, no buzz test, no contribution test. We've check all related wires and fuses and can't find any thing wrong. The check engine light is NOT lit.
PCM was sent out to be tested/rebuilt and they said it was fine.
Injectors and glow plugs were replaced 3,000 miles previous to this problem. We have installed new batteries and a new fuel pump.
We've swapped out the IDM and CMP from a working truck. Both IDM's were 100A's from 95's, though I've heard this doesn't matter.
Fuel and filter is clean and i get 24psi from the pressure test valve on the fuel pressure regulator while cranking.
Oil is full as well as HPOP res.
Injectors and injector harness all ohm'd out to specs.
ICP, IPR and CMP wiring measured proper voltages (these wires were not ohm'd as i do not have access to a PCM breakout box).
All fuses and relays have been tested (not just looked at).
All attempts to start have been done with AND without the ICP connected.
What I believe we are down to is a faulty HPOP and/or IPR.
Does it sound like were on the right track?
Any ideas on something we've missed?
Any one know where we can buy or preferably barrow/rent a pressure gauge to test the HPOP?
Any one know how to test the IPR?
Any ideas on why we can't get a scanner to connect?
Any help will be greatly appreciated as he badly needs this truck for work.
I'm helping a buddy who just picked up a 95 7.3L Powerstroke Turbo that won't start. Previous owner said the engine just flat out died as he was driving down the road and wouldn't start from there on. It cranks just fine but no attempt to start and no smoke. It will fire on ether (glow plug relay was disconnected).
This truck has been to 4 different mechanics to have codes read with no luck. "Scanner can't connect". So no codes, no buzz test, no contribution test. We've check all related wires and fuses and can't find any thing wrong. The check engine light is NOT lit.
PCM was sent out to be tested/rebuilt and they said it was fine.
Injectors and glow plugs were replaced 3,000 miles previous to this problem. We have installed new batteries and a new fuel pump.
We've swapped out the IDM and CMP from a working truck. Both IDM's were 100A's from 95's, though I've heard this doesn't matter.
Fuel and filter is clean and i get 24psi from the pressure test valve on the fuel pressure regulator while cranking.
Oil is full as well as HPOP res.
Injectors and injector harness all ohm'd out to specs.
ICP, IPR and CMP wiring measured proper voltages (these wires were not ohm'd as i do not have access to a PCM breakout box).
All fuses and relays have been tested (not just looked at).
All attempts to start have been done with AND without the ICP connected.
What I believe we are down to is a faulty HPOP and/or IPR.
Does it sound like were on the right track?
Any ideas on something we've missed?
Any one know where we can buy or preferably barrow/rent a pressure gauge to test the HPOP?
Any one know how to test the IPR?
Any ideas on why we can't get a scanner to connect?
Any help will be greatly appreciated as he badly needs this truck for work.