TURNED OFF WHILE DRIVING/WONT START
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TURNED OFF WHILE DRIVING/WONT START
Hey guys! i just bought my first diesel truck, a 7.3 of course 
, got for a fair price ($5000). 2002 f350 4x4 crew cab, short bed. Any ways i drove it for like 2 weeks and left it at my uncles house so he can use to go to work. then 2 days later he calls me to tell me that the truck shut off while driving just like that. he tried turning it on a couple of times and it would just crank. he gave up and had it towed.
i have been looking through all powerstrokes forums and found some solutions like changing the CPS or the IPR. I just want to know if you guys have any other advices????
i just want that beast running again!!! haven't enjoyed it much
, got for a fair price ($5000). 2002 f350 4x4 crew cab, short bed. Any ways i drove it for like 2 weeks and left it at my uncles house so he can use to go to work. then 2 days later he calls me to tell me that the truck shut off while driving just like that. he tried turning it on a couple of times and it would just crank. he gave up and had it towed.i have been looking through all powerstrokes forums and found some solutions like changing the CPS or the IPR. I just want to know if you guys have any other advices????
i just want that beast running again!!! haven't enjoyed it much
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New User
Joined: Mar 2017
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jajaj lesson learned 
that is the first thing im doing. it happen last saturday so i havent been able to check it out(10 hr drive to uncles house). i need to ask him about the tach moving.... and for sure there wasn't any white smoke. He would have said something but ill double check
that is the first thing im doing. it happen last saturday so i havent been able to check it out(10 hr drive to uncles house). i need to ask him about the tach moving.... and for sure there wasn't any white smoke. He would have said something but ill double check
Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
I don't believe the Tach moves on my 02 when cranking?
I would go ahead and order a new CPS (OEM only, as with all sensors on these rigs, they don't like aftermarket stuff!) worse case he has a spare to keep in his glove box as a lot of us do, known problem with these trucks; plus it is a heck of a lot cheaper than a new IPR......
I would go ahead and order a new CPS (OEM only, as with all sensors on these rigs, they don't like aftermarket stuff!) worse case he has a spare to keep in his glove box as a lot of us do, known problem with these trucks; plus it is a heck of a lot cheaper than a new IPR......
Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
A scanner would be good to have and you'll want one anyhow. You can get a blue tooth or wifi OBD adapter fairly cheap and forescan lite is as cheap as it gets, that's a downloadable app.
Posting Guru
Joined: May 2013
Posts: 1,199
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From: Oklahoma
The Tach does NOT move on a 2002 when cranking. A scanner will be the best bet.
Since it will crank, that is good. In addition to replacing the CPS, unplug the ICP sensor on the front of the Drivers side head. Not sure where you are located, but there might be an FTE brother close who has either Forscan (FORScan Home) or AE that can help you scan the truck.
With the great price of Forscan, I'd suggest you get that setup ASAP when owning the 7.3. Most new techs don't know how to work on our older rigs and just waste money by throwing parts at it.
Since it will crank, that is good. In addition to replacing the CPS, unplug the ICP sensor on the front of the Drivers side head. Not sure where you are located, but there might be an FTE brother close who has either Forscan (FORScan Home) or AE that can help you scan the truck.
With the great price of Forscan, I'd suggest you get that setup ASAP when owning the 7.3. Most new techs don't know how to work on our older rigs and just waste money by throwing parts at it.
Posting Guru
Joined: Oct 2012
Posts: 1,910
Likes: 2
From: Hat Creek Ca
Also verify that the fuse is good to the fuel bowl heater, it also powers the PCM - on the earlier models at least. IDK if it is the same for the later 7.3's or not.
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Lead Driver
Joined: Sep 2005
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From: Norco,CA
What Hydro Man 17 said also. If the wait to start light doesn't come on then unplug the fuel bowl heater and replace the fuse. Leave it unplugged and start it up. Make sure you have fuel pressure also. If he put fuel in it, he also mitt of put gas in it.
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Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
Originally Posted by hydro man 17
Well if it was the fuse it's gotta blow sometime while the truck is running. I don't think that the heater is energized when it is shut off.
Just spit balling here.
Just spit balling here.
Not disagreeing or saying you're wrong. Just spitballing too.......
To the OP, did the truck shut off like someone turned off the key? Or did it more sputter and die? What were the weather conditions at the time?