99 7.3 Rough Idle When Cold, Dies When Warmed Up - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 05-30-2013, 07:32 PM Thread Starter
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Exclamation 99 7.3 Rough Idle When Cold, Dies When Warmed Up

Hey boys,
Having a serious problem with my baby. It started all at once, I was driving down the road and all of a sudden my truck wouldn't shift and just died. Pulled off and then tried and tried to turn it over and it wouldn't. Finally after 10 minutes it started back up, but I had no power and it just kept dieing. Few days later my friend comes by to check it out and it starts but is just running a really really rough almost short idle and as soon as it warmed up it just started loping really really hard and then tries to die out and eventually does...after it warms up it wont go over 1000 rpms, but when its cold the rpms will go up. So today we replaced the CAM sensor and looked at the fuse 19 and it was fine. So have no idea whats going on..SOMEONE HELP VERY FRUSTRAITED
(also blows a little bit of white smoke...not a ton! just a puff here and there.
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post #2 of 3 Old 05-30-2013, 07:58 PM
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My 7.3 does this. Try unplugging the ICP sensor and see what it does.

I have it narrowed down ti either my cps or my ipr.

I would try The ICP unplug test first.

If it still does it unplugged. Then it points more to a bad ipr.

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Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #3 of 3 Old 05-30-2013, 09:37 PM
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This might be barking up the wrong tree but how does your fuel and fuel filter look?

2001 7.3L
Pro Comp 6.5" Lift
Pro Comp 16x10 Alloys
35x12.5 Nitto Mud Grapplers
Sky Jacker Hydro 7000 Steering Stabilizers
Straight Piped Dual 4"
Jasper 4R100 (Rebuilt in '05)
Tru-Cool Max
Dieselsite Coolant/Trans Filters
ISSPRO EV2 (Boost, EGT, Trans)
EBPV Switch
'07 Headlight Conversion
Foil Delete
Monitoring with Torque
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1999, 7.3, dies, rough idle

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