2001 7.3 NO START
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
I'm on my third cam sensor, 2 dealer grey ones, now a rockauto motorcraft du87. It is a slight improvement but no cure. $1600 injectors, completely replaced fuel system,(all of it in-tank pump, new ss feed line from wix filter head to rear of each head, returns from front through new aeromotive regulator back into new ss return to tank) I've done batteries and cables, an ebay IDM, pulled the GEM no noticeable damage water or otherwise, couple IPR valves, water pump and oil cooler, latest was drilling out the banjo bolts on the feed side for better fuel flow this morning. That last one has made a change, not a cure but some my mass fuel desired numbers are improving and I hear a difference in idle. Time will tell.
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Freshman User
Joined: Jan 2021
Posts: 43
Likes: 0
I'm on my third cam sensor, 2 dealer grey ones, now a rockauto motorcraft du87. It is a slight improvement but no cure. $1600 injectors, completely replaced fuel system,(all of it in-tank pump, new ss feed line from wix filter head to rear of each head, returns from front through new aeromotive regulator back into new ss return to tank) I've done batteries and cables, an ebay IDM, pulled the GEM no noticeable damage water or otherwise, couple IPR valves, water pump and oil cooler, latest was drilling out the banjo bolts on the feed side for better fuel flow this morning. That last one has made a change, not a cure but some my mass fuel desired numbers are improving and I hear a difference in idle. Time will tell.
These 7.3s are all so picky about what sensors they get and such LOL, I would look for chaffed wires or something of the sort, you never know,
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
I have unwrapped the whole engine harness inspecting each wire like a coked up spider monkey. Ohm'd every wire back to the 42 pin. The herpes bit is a joke but sometimes I wonder.
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Freshman User
Joined: Jan 2021
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Just throwing out stupid things you probably hve already done but worth a shot, unplugged the IPC sensor? UVCH?
What exactly is it doing?
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Freshman User
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Nahhh its ok LOL, helping out is what the forums are for,
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Just read a post here of someone testing their ipr solenoid by putting it in the oven and warming it to 230* and checking resistance of the coil. I thought it was a clever idea and figured I'd pass it on.
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Freshman User
Joined: Jan 2021
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Interesting concept, I may have to research that some,
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Funny i just posted that thread in another thread, oops here it is!
https://www.ford-trucks.com/forums/1...enly-dies.html
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