HELP with dead engine
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Mountain Pass
Joined: Dec 2004
Posts: 116
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From: Bethlehem Ga.
HELP with dead engine
OK guys see if you can help me figure this one out , I have a 03 model 7.3 with 125000 miles I was driving down the freeway at 65 mph when all of a sudden the engine just died so I tryed to get to the side of road but before I could get there it started back up. And it didnt give me anymore trouble the rest of the day. Day 2 it cut off a couple times and restarted each time, I figure it must be cps so I had purchased 3 of the new reduced price ones for spares we have 3 of these trucks in our family. So I replaced it and it started right up let it Idle about 5 min and it died again. Drove around the neighbor hood shut off couple more times. Now it has died again so I thought possiably it was a bad cps so I put a 2nd cps in and it still want start at all this time. any Ideas I checked the plugs on the outside of valve cover they look good. Just wondering about the IDM?
Post Fiend
Joined: Jun 2006
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From: White Mnt's,New Hampshire
Originally Posted by Poohbear
OK guys see if you can help me figure this one out , I have a 03 model 7.3 with 125000 miles I was driving down the freeway at 65 mph when all of a sudden the engine just died so I tryed to get to the side of road but before I could get there it started back up. And it didnt give me anymore trouble the rest of the day. Day 2 it cut off a couple times and restarted each time, I figure it must be cps so I had purchased 3 of the new reduced price ones for spares we have 3 of these trucks in our family. So I replaced it and it started right up let it Idle about 5 min and it died again. Drove around the neighbor hood shut off couple more times. Now it has died again so I thought possiably it was a bad cps so I put a 2nd cps in and it still want start at all this time. any Ideas I checked the plugs on the outside of valve cover they look good. Just wondering about the IDM?
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Mountain Pass
Joined: Dec 2004
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From: Bethlehem Ga.
I went tkis morning cranked it and it fired right up drove a mile down the road and died again, turn starter and cranked back up went 1/2 mile died again. and would not crank this time put a 3rd cps in and nothing put the original cps and nothing . Towed it back and hit starter and fired up again.
Senior User
Joined: Jan 2007
Posts: 109
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From: Marshfield, MO
A real possibility might be the ICP. Had this exact thing happen to me... Unplug the ICP and see if it starts.
Tom
Tom
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Mountain Pass
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From: Bethlehem Ga.
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Of the next Riffraff East
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From: Concord NC
Originally Posted by Poohbear
What is icp and where located
Post Fiend
Joined: Mar 2007
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From: Texas
Any other symptoms? Any dash lights staying on or not going off? I had a similar issue and it turned out to be a short in the main engine wiring harness. The clues for me was the glow plug light & water in fuel light flashing when it stalled, and the glow plug light would not go off when in a no start situation. If the glow plug light went off like normal it would start like nothing ever happened.
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Mountain Pass
Joined: Dec 2004
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From: Bethlehem Ga.
Yes F350-6 we have noticed that the glow plug light stays on a lot longer than normal when this happens. Its been running for 2 days now but it has stalled again this morning I havent unplugged the ICP yet to see it will crank but Im going to now. How do you find a short in the harness do you start unwraping till you find It.
Post Fiend
Joined: Mar 2007
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From: Texas
Stand on drivers side of truck. Look in front of master cylinder but behind the turbo intake hose. You will see a wiring harness coming up the side of the engine with a square box that appears to be mounted to the valve cover. Check to see if the wires below the box are chaffed from rubbing the valve cover, and the wires above the box to see if they've been rubbing against a metal bracket.
You can also look to see if you have a harness that goes over the top of the drivers right front shock. Check for rubbing issues there too. But the main engine harness is a more common problem.
You can also look to see if you have a harness that goes over the top of the drivers right front shock. Check for rubbing issues there too. But the main engine harness is a more common problem.
Senior User
Joined: Mar 2004
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Originally Posted by Poohbear
What is the IPR and where is it located
Also have you checked the fuel pump?
You can visually check it by attaching tubing to the drain tube, run it into a gallon jug, open the drain valve on the back of the fuel bowl, and turn the key to on.
Watch for a strong stream.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Originally Posted by arjr111
http://cw-diesel.com/LuxSite/IPRInfo.htm
Also have you checked the fuel pump?
You can visually check it by attaching tubing to the drain tube, run it into a gallon jug, open the drain valve on the back of the fuel bowl, and turn the key to on.
Watch for a strong stream.
Also have you checked the fuel pump?
You can visually check it by attaching tubing to the drain tube, run it into a gallon jug, open the drain valve on the back of the fuel bowl, and turn the key to on.
Watch for a strong stream.
The way a Powerstroke is designed, it will not behave in that manner, but will taper off more gradually, like a carburated car running it's fuel bowl dry.
It's embarrassing to admit how I know this, but I had a broken wire to my fuel pump that was killing the power to it and I was able to drive it for miles while I was trying to figure out why it was missing so badly and then all of a sudden it would catch and go. The wire was laying against the connector and the pump would run for a second or two and then quit again, just long enough to put some more fuel in the rails.
The problem with the OP's truck is it's cutting out like turning the key off, so I really don't think the fuel pump is the culprit this time.