i have a 99 f250 couple days ago pulling up to a light and the truck shuts off i stop and it fires back up this also happened to me last week and it fires right back up. it almost feels like you turn the key it doesn't stutter or anything. i have changed my cps about 8000km ago so don't think its that thanks.
randomly shuts down
- Thread starter mattl140
- Start date
6ohstroker
New member
I would check the CPS again. I had an early 2000 that would die randomly when you stepped on the brake pedal. It eventually started doing it ever time you hit the brakes. Slapped a new CPS on it and never did it again.
old man dave
New member
If you are reasonable sure that the sensors are good, then check the CPS and IVS sensor connections and harness for bare spots on the insulation. Also check the IPR harness for the loose nut and harness condition.
Did you change the pigtail on the ICP sensor at the same time?
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dsberman94
Well-known member
See if you can swap ipr coils with someone else with a 7.3. I just fixed mine today and I probably had a bad coil, being that's what I changed. Chances are whatever your issue is will get worse in a fairly short timeframe. If you can pull codes after it dies do that as well. That'll give us a better idea as well. Without that its shooting in the dark.
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got it scanned got these codes (p1280) injector control pressure ICP circuit out of range i changed this sensor along with the pigtail about 10k ago. (p0221) throttle position sensor/switch B perform. i knew about this one. (P0340) cam position sensor circuit fault also changed this sensor about 10k ago. i did a buzz test and they all sounded fine. also did a contribution test and got cylinder 5 and cylinder 8. I'm guessing cylinder 8 is a ghost code thrown by the cps sensor.
dsberman94
Well-known member
Cam position fault can be from extended crank times with no start, but a bad cps can also cause the truck to randomly die. And they've been known to be bad when new and soon after new.
Pull the plug out of the icp sensor and see if it's got oil on it. Have you gotten a chance to check with a different ipr yet?
Bad contribution test won't cause it to die and restart.
Pull the plug out of the icp sensor and see if it's got oil on it. Have you gotten a chance to check with a different ipr yet?
Bad contribution test won't cause it to die and restart.
Arisley
Moderator
When you changed the ICP sensor, how did you make your connections?
crimped them
Arisley
Moderator
No solder?
