03 7.3 Miss when cold? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 01-18-2013, 11:55 AM Thread Starter
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03 7.3 Miss when cold?

Have an 03 198k on it. When its cold it has a miss but after it warms up for awhile it runs just fine. This would indicate an injector problem correct? It wouldnt be compression related would it? As additional information, this morning i started the truck and drove it (under 30 mph) for about 2 miles. it missed the whole time. I parked it, shut it off and went into a store for 15 minutes came out and started it and it was running perfect without a miss. Could the heat from the engine have migrated into the injector more while i was in the store causeing it to work just fine when i came back to it?
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post #2 of 4 Old 01-18-2013, 01:14 PM
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I see you live in Kansas. Not sure what the weather is out there but how cold was it? Also, what oil are you using (contributing factors)?


2001 7.3L
Pro Comp 6.5" Lift
Pro Comp 16x10 Alloys
35x12.5 Nitto Mud Grapplers
Sky Jacker Hydro 7000 Steering Stabilizers
K&N CAI JUNKED For A 6637
Straight Piped Dual 4"
Jasper 4R100 (Rebuilt in '05)
Tru-Cool Max
Dieselsite Coolant/Trans Filters
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'07 Headlight Conversion
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post #3 of 4 Old 01-18-2013, 01:50 PM Thread Starter
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It gets down to the mid twenties here at night currently. Its got Dino oil in it Rotella.
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post #4 of 4 Old 01-18-2013, 02:13 PM
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If it's a heavier weight, that will play into it. Not sure if that's exactly the culprit but heavier oil is like the thickest molasses in winter. Doesn't help our romping beasts I haven't told you anything you don't already know. Maybe somebody more mechanically inclined will jump on this thread.


2001 7.3L
Pro Comp 6.5" Lift
Pro Comp 16x10 Alloys
35x12.5 Nitto Mud Grapplers
Sky Jacker Hydro 7000 Steering Stabilizers
K&N CAI JUNKED For A 6637
Straight Piped Dual 4"
Jasper 4R100 (Rebuilt in '05)
Tru-Cool Max
Dieselsite Coolant/Trans Filters
ISSPRO EV2 (Boost, EGT, Trans)
Centramatics
EBPV Switch
'07 Headlight Conversion
Foil Delete
Zoodad
Monitoring with Torque
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