Truck Stalls While Driving
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New User
Joined: Dec 2009
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Truck Stalls While Driving
I have a 1999 Ford F350 7.3 Diesel. While driving down the road the truck completely dies. Typically will start right back up. Cam sensors have been changed and computer shows no errors. Problem occurs appox. 4-6 times a year. Has anyone else expierenced similar problems or have any suggestions?
Fleet Owner
Joined: Mar 2007
Posts: 28,295
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From: BLT, MN
Mine was doing that. The only two things I did was replace the CPS and unbolt my IDM and make sure the plug was tight. I unplugged and replugged it. Mine has not stalled since. I suspect it was the CPS but I cannot rule out the IDM plug because I did them at the same time. Not saying this will fix your issue but it worked for me. I would replace your CPS again if possible. And welcome to FTE.
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
Welcome to FTE.
Tell us more about your problem. Does it always happen in the same temperature range? What dash lights flash or stay on when this happens? Do you happen to have the windshield wipers on when the problem happens? Does it happen within a day or so after a rain?
Tell us more about your problem. Does it always happen in the same temperature range? What dash lights flash or stay on when this happens? Do you happen to have the windshield wipers on when the problem happens? Does it happen within a day or so after a rain?
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Outside temperature does not seem to have any affect on the issue. Nor does the truck temperature; it can happn soon after starting or after i have been driving awhile. As far as the instrument panel the Service Engine Soon light comes on. Weather conditions also dont seem to be a factor. Happened twice today and the truck fired back up immediatly in both instances. Authorized Ford Dealer replaced the stock CAM sensor; then took it back to them and they could not find the issue. Getting frustrated.
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New User
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Clint, Yes it also stalled out with the old sensor. Seems to be getting worse and happening more frequently.
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Fleet Owner
Joined: Mar 2007
Posts: 28,295
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From: BLT, MN
Could it possibly be a loose UVCH plug? Seems a little to intermittant but maybe? Check all the harnesses for a chafed wire also. I have read of problems like that in the past. Wish I could remember specifically where the problem was. Does it happen after hitting bumps or potholes or just whenever?
Sorry for all the questions. Just trying to help narrow things down.
Sorry for all the questions. Just trying to help narrow things down.
Elder User
Joined: Dec 2009
Posts: 864
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From: Fort Campbell, KY
Outside temperature does not seem to have any affect on the issue. Nor does the truck temperature; it can happn soon after starting or after i have been driving awhile. As far as the instrument panel the Service Engine Soon light comes on. Weather conditions also dont seem to be a factor. Happened twice today and the truck fired back up immediatly in both instances. Authorized Ford Dealer replaced the stock CAM sensor; then took it back to them and they could not find the issue. Getting frustrated.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Check the wire to the CPS to make sure the plug is seated well and there are no issues. Also check the wires going to the IPR to make sure the insulation has not become brittle.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
If you still have your old engine, I would try swapping out the valve first.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
This is when mine kept stalling also. The bumps didn't seem to affect it like you would think. Check for the chaffed wires.