2002 7.3l dies suddenly, wont start - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 8 (permalink) Old 04-09-2019, 06:30 AM Thread Starter
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2002 7.3l dies suddenly, wont start

I have given up. Figured I'd write a post about expierence and will update when fixed.

3 days ago out of the blue, truck just stalls going down highway. No hesitation no code just stalls. Cranks but wont start. Drained the fuel bowl and disconnected the ICP. Didnt help.
Drained fuel bowl again and reconnected ICP. Started up. Drove fine for about 50 miles. Stalled again. Did same stuff again. Started and drove about 1/4 of a mile then stalled. Changed ICP. Started right up about a mile down the road started hesitating. Turned around and made it about half a mile. Towed it home. Once home changed camshaft sensor and fuel filter. Truck drove about 10 miles then stalled again. All fuses are good and no codes. I believe (just my guess) something in computer or something getting hot and shutting it down. Because if let sit over night and not touch it, it will start up. Might drive for a mile maybe 50 who knows. Lol. Going to take it to shop after work today.
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post #2 of 8 (permalink) Old 04-09-2019, 09:13 AM
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Your description is classic for a failing IPR solenoid. When an electromagnetic solenoid begins to fail, they get heat sensitive. Usually will have enough power to pull in when cold, but as soon as the warm-up, they lose their grip. You see this with coils on gas dryers all the time.

In the case of your truck, when the solenoid loses its grip, it drops the IPR pin which dumps all your high-pressure oil pressure. The truck dies. The coil cools down and can grip again until it heats up.

Some people have been able to "test" this by pouring cold water over the coil and seeing if it will restart immediately thereafter.

2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #3 of 8 (permalink) Old 04-10-2019, 04:41 AM Thread Starter
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Wish I would have seen that yesterday. Lol. After work it started right.up made it about 5 or 6 miles then died. Towed it rest of way to shop
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post #4 of 8 (permalink) Old 04-10-2019, 11:19 AM Thread Starter
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You were correct. Just got off the phone with the shop. He said ipr was bad and had to do something to hpop also.
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post #5 of 8 (permalink) Old 04-10-2019, 03:41 PM
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Well, wish I had responded quick enough for you to catch it before you ended up in the shop. Let us know how much the bill was and whatever he "had to do to the hpop" (real curious what that was) and we'll see how much we could have saved you.

2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #6 of 8 (permalink) Old 04-11-2019, 04:34 AM Thread Starter
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Total out the door was 350. 200 for part 140 labor and 10 tax. Which to me isnt too too bad. They got to make money too. And he had to reprime hpop I believe he said. I could be mistaken on that.
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post #7 of 8 (permalink) Old 04-11-2019, 08:53 AM
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That's a great price. I was expecting closer to $1,000. The actual cost of a Motorcraft IPR is $180. Between diagnosis and installation, the labor is very fair. You need to keep that shop on speed dial. Might even share their name and location in case anyone close to you needs work done.

2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #8 of 8 (permalink) Old 04-13-2019, 04:59 AM Thread Starter
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Right. Shop was TNT out of Flat Rock, MI. Small shop just owner and 1 other mechanic. And I could be wrong but I believe both are certified in auto repair and diesel. And also around here it's hard to find shops to work on diesels. If you do usually they say they cant get to it for a couple weeks.
I was talking to a guy at my work with same truck and he swears by a place in Monroe, MI called Kelly's. Never been there myself though.
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