HELP! Truck keeps dying - 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 19 (permalink) Old 03-03-2007, 10:36 PM Thread Starter
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HELP! Truck keeps dying

My truck keeps dying on me while driving. It gets worse and happens more frequently. I didnt think I was going to get home from work tonight. The engine speed drops to idle no matter what the throttle position is. The water in fuel light comes on and so does the wait to start and ses. It has completely died a few times as well. Most of the time when I crank there is no movement in the rpm needle and sometimes there is. Is this the sign of a cps. I just bought one today and will probably install tomorrow. Please help Thanks!

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post #2 of 19 (permalink) Old 03-03-2007, 10:53 PM
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Re: HELP! Truck keeps dying

CPS? Possibly. Also pull, clean and tighten the right side battery cables - oddly enough, they can be good enough to crank, but not good enough to run the engine (This happened to me, I did not think to check it because it cranked so well, a Ford dealer tech diagnosed and fixed it - cheers to Ford dealer techs).

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post #3 of 19 (permalink) Old 03-03-2007, 11:08 PM
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Re: HELP! Truck keeps dying

Definately install the CPS and check back. The damn things go out at the worst possible times! Mine went out pulling the boat (7K) up the launch ramp.. If it is your CPS, and it really sounds like it is, then pick up a spare and put it in the glove box with a 10mm wrench..

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post #4 of 19 (permalink) Old 03-03-2007, 11:59 PM Thread Starter
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Re: HELP! Truck keeps dying

Is the water in fuel light and wait to start light part of diagnosing a bad cps? Should those lights come on when it fails?

2000 Red Ford F-250 7.3 Powerstroke Turbo Diesel, 3 gauge pillar with Autometer Phantom 2 gauges, DP Tuner F5 Chip 60,80,120,140,lope idle, Visor, Volant Cold Air Intake, dual 5" chrome curved stacks, Grill painted to match truck, towing mirrors, tinted windows, 2006 style emblems, back rack w/ diamond plate toolbox. Smoked LED taillights, 150psi Air Horns. Yea this truck is shiny and clean!
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post #5 of 19 (permalink) Old 03-04-2007, 12:26 AM
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Re: HELP! Truck keeps dying

My guess is that the lights would come on as if you had just turned the key to the "On" position without the truck running.

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post #6 of 19 (permalink) Old 03-04-2007, 11:52 AM Thread Starter
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Re: HELP! Truck keeps dying

Heres the update. I installed a new cps this morning and the truck fired right up so I went on a test drive. I drove 4 miles to the gas station to get a coffee and left my truck idling. I pulled out of the station and about a 1/2 mile down the road the truck died. The only lights that came on were the ses and battery light. After a few attempts, the truck restarted. I then drove another 30 miles (highway and backroads) without any further issues. Where should I go from here? Could it be my dp-tuner chip acting up? Like I said, it only happened once out of about 35 miles. I'm stumped. [img]/ubbthreads/images/graemlins/shrug.gif[/img]

2000 Red Ford F-250 7.3 Powerstroke Turbo Diesel, 3 gauge pillar with Autometer Phantom 2 gauges, DP Tuner F5 Chip 60,80,120,140,lope idle, Visor, Volant Cold Air Intake, dual 5" chrome curved stacks, Grill painted to match truck, towing mirrors, tinted windows, 2006 style emblems, back rack w/ diamond plate toolbox. Smoked LED taillights, 150psi Air Horns. Yea this truck is shiny and clean!
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post #7 of 19 (permalink) Old 03-04-2007, 01:21 PM
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Re: HELP! Truck keeps dying

When was your last fuel filter change?

Just to eliminate a possibility you might remove the chip and repeat your driving test. It usually isn't the chip especially a DP but stranger things have happened and it is a "No cost" test. The only problem is that if it is intermitent it may be difficult to track down.

Let us know.

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post #8 of 19 (permalink) Old 11-09-2015, 04:30 PM
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I'm having the same issue. I have just changed cps, and it still dies.
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post #9 of 19 (permalink) Old 11-09-2015, 04:36 PM
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does the truck does it only when hot and soon as it cool down a bit it fire right back up? IPR???? do you have any way to monitor the engine and pull code?

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post #10 of 19 (permalink) Old 11-10-2015, 11:06 AM
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Mine dies hot or cold.
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post #11 of 19 (permalink) Old 11-16-2015, 09:37 AM
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I was told by a garage to unplug the icp and see if it fixed it. I did, and it didn't die anymore so I bought a new OEM one

I have changed icp sensor it was good first part of day then died died twice that evening, and three times on way to work.
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post #12 of 19 (permalink) Old 11-16-2015, 11:06 AM
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If you are getting the instrument lights such as the WTS, CEL, and battery lights then I would suspect the ignition switch or a loose connector under the dash or the PCM.

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post #13 of 19 (permalink) Old 11-17-2015, 09:55 PM
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It died after work on way home I stopped and unplugged the new ICP sensor. It was fine till the next day I drove home it shuts down when it finally starts it will run till i put it in gear then dies again.

I get towed home plug in ICP sensor again and it starts and runs fine.

Stumped!!!!!
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post #14 of 19 (permalink) Old 11-18-2015, 01:24 AM
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Just picking up from some of the common trends:
How much fuel is in the tank?
Are you running a Ford CPS?
Wipers on intermittent when it happens?
Any damage to the under valve cover wiring harness?

A shop scanner or Auto Enginuity will pull codes. Something may be in there. The readers that the part houses have wont read the codes in these trucks.
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post #15 of 19 (permalink) Old 11-18-2015, 09:10 AM
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Half a tank of fuel. New ford CPS. My sct scanner shows no codes.

Started and drove to work with no troubles, with ICP plugged in.
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