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Discussion Starter #1
I’ve been having problems with my 1996 f350 7.3, it stalled out the other day on my way home, so I ordered a new CPS from ford and installed it last night. Drove it around for about 20 minutes and it was driving fine. This morning on my way to school it stalled again but started back up. On my way home it stalled out about 5 more times and I barely made it home... started it when I got home and it was idling terrible, RPMs where continuously rising and falling. Turned it off and now it won’t start. I unplugged the ICP sensor and tried starting it again and still nothing, just cranks. Now I’m wondering if maybe it’s the IPR?? If anyone has any knowledge or experience with this please let me know.

Thanks,
Christian


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On first glance it seems like fuel (but not much to go on) so,

CEL illuminated?
Oil Level good?
Wait-to-Start light coming on?
RPMs registering while cranking?
Fuel Pressure while cranking?
Tried switching fuel tanks?
Any mods like a chip?
IPR "tin nut" on and snug?

Cheers!
 

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My ipr nut and spacer is gone. Mine runs great. What kind cam sensor did you get? Oem from the dealer is the only way to go. Aftermarket are hit and miss.
 

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Discussion Starter #4
On first glance it seems like fuel (but not much to go on) so,

CEL illuminated?
Oil Level good?
Wait-to-Start light coming on?
RPMs registering while cranking?
Fuel Pressure while cranking?
Tried switching fuel tanks?
Any mods like a chip?
IPR "tin nut" on and snug?

Cheers!


No CEL light, tried switching tanks, gonna check the IPR nut when I get home, RPMs are registering while cranking, but the oil gauge does not move while cranking. I have a TS 6 pos chip


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Discussion Starter #5
My ipr nut and spacer is gone. Mine runs great. What kind cam sensor did you get? Oem from the dealer is the only way to go. Aftermarket are hit and miss.


Got the dark blue one of amazon that cane in the motorcraft packaging so it is OEM


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I know it is kinda redundant but make sure your oil level is where it needs to be that can play a role. The other thing is watch the chip I don't know what caused it in my 97 7.3 but the chip caused a no start it would crank for days but never fire, after messing with it for a while we got fed up and took it to the shop and they tested everything and could not find anything wrong so the pulled the chip out just to see and it fired right up. A year or so after that I sent the chip to TS and they checked it and told me it was fine so I put it back on to try it again after do some more cleaning to the terminals and it ran fine for 3 days and then went into no start again so I pulled the chip and it fired right up. I don't know if that is caused from the chip or my pcm or what but just figured I'd through it out there.
 

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As burton97 has mentioned, physically remove the chip from the PCM (don't just set it to stock setting) and see what happens. If its not the chip, get the problem resolved before reinstalling it. Cheers!
 

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I have the same chip, when i firsst installed it i had a cel and no start. Took back apart and scrubbed all the glue off terminals to the copper and reinstalled. No problem since. That was over two years ago.
 

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Discussion Starter #9
So I ran the truck without the chip, it ran great for like 20 minutes so I turned it off and started it again, running fine. Then let it sit for around 5-10 minutes and then started it and it was idling terrible and then stalled out. I also checked to see if there was oil in the hpop whole it was running, and as soon as I listened the bolt it started flowing out immediately.... so would this mean chances are it’s not an oil problem?


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