Vinny07psd
New member
This might be dumb... But maybe cam sensor?
Engine won't fire
- Thread starter JD3020
- Start date
7.3psd97444
New member
He already adressed that.
Vinny07psd
New member
Ok my bad
JD3020
Active member
Yeah, that was the 2nd thing i did.
Found some issues with the fuel pump, had a very slight leak on the pick-up hose, and it started sucking air. Got that fixed up and now the fuel system is good to go. After i charged the batteries the scanguage started working again while cranking, getting good voltage and RPM's now, ICP is still climbing up to 3kpsi.
Starting to wonder if its the PCM.
Found some issues with the fuel pump, had a very slight leak on the pick-up hose, and it started sucking air. Got that fixed up and now the fuel system is good to go. After i charged the batteries the scanguage started working again while cranking, getting good voltage and RPM's now, ICP is still climbing up to 3kpsi.
Starting to wonder if its the PCM.
dmd
Member
Was the chip taped in to make sure it was tight? or could it have come
loose? That can fry the PCM.
loose? That can fry the PCM.
JD3020
Active member
No, chip was tight.
But i meant to type IDM. If the PCM was bad it wouldn't be acting perfectly, although the IDM doesn't seem to be bad as its buzzing the injectors fine. But something somewhere is keeping the injectors to fire. They've got fuel, and they've got oil, but no smoke.
Arisley
Moderator
Powerstroke Cowboy
Well-known member
This!!! ^^^^^ That is you problem.
96F350KID
New member
You try unplugging the ICP to see if it starts? But yes charge or replace your low batteries.
JD3020
Active member
Unplugged ICP and no change. The tuning calls for 3kpsi at cranking, and its hitting 3kpsi while cranking, so to me that means there's no issues on the HPO side.
I did charge the batteries, even jumped it with another truck and never fired. Unless there's an internal battery issue thats causing voltage to drop, its cranking at full speed.
Today i'm gonna try to dig into the wiring and see if there is an issue, and try to get my hands on an IDM to throw on. This is one of those situations where i'm kicking myself for not having a spare IDM. Or at the moment, not even having a working multimeter. :cursing:
I did charge the batteries, even jumped it with another truck and never fired. Unless there's an internal battery issue thats causing voltage to drop, its cranking at full speed.
Today i'm gonna try to dig into the wiring and see if there is an issue, and try to get my hands on an IDM to throw on. This is one of those situations where i'm kicking myself for not having a spare IDM. Or at the moment, not even having a working multimeter. :cursing:
Powerstroke Cowboy
Well-known member
I have 5 spare one sitting here if you need one... they are all used.
Redman920-06 350
New member
Try Just a SHOT of ether, I know its never a GOOD thing BUT see if it'll even cough off of it. Its worth a Shot...
JD3020
Active member
I've thought about unhooking the GP's and trying some ether, we've tried WD-40 and get smoke but no fire. But i don't have any ether/starting fluid here so if i make a parts run i'll grab some to try it
Jarrod B
Active member
you are not putting enough gasoline on it to light it up..............
JD3020
Active member
No ****, contemplated pushing it in the yard and roasting some marshmallows.
Ohmed out the 4 main IDM wires, all show very little to no resistance so theres no short between the PCM and the IDM. Up next is to make sure i've got good power to the IDM. Anything else i should check out while i've got the multimeter out and everything apart?
Bustedknuckles
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I'm guessing bad IDM as well.
JD3020
Active member
Problem found, it was the IDM. Dug out the IDM that came in my truck and was half shorted out due to water. When i yanked it out of the i popped the cover off and threw on top of a shelf where its sat. Got it down, blew some of the cobwebs out and threw it on the truck. Took a couple seconds but it fired to life running on 4 cylinders.
Guess i'll have to tear the old one apart and see what happened, i think its an 01 or 02 that had low miles when i got a couple years ago. Guess i shoulda sent it to Swamps sooner...
Guess i'll have to tear the old one apart and see what happened, i think its an 01 or 02 that had low miles when i got a couple years ago. Guess i shoulda sent it to Swamps sooner...
7.3psd97444
New member
Find an idm yet? How far away are you from Owensville OH?
JD3020
Active member
Not yet, currently at work trying to locate some metal and haven't looked for one. Our drive-thru was broken into around 1 this morning, so i was given the task of working on some security stuff. :cursing:
But i'm probably an hour from Owensville.
7.3psd97444
New member
I got a buddy in Owensville. Big 7.3 guy...he may have one ill check.
