Random Check Engine Light - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 04-25-2012, 03:30 PM Thread Starter
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Random Check Engine Light

I searched but didn't really see this problem.
The check engine light will randomly come on in my truck. Sometimes it's for a few hours, sometimes a few days. Truck runs fine, no difference at all. Runs great either way.
Anything to be concerned with or ideas? Thanks in advance.


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post #2 of 4 Old 04-26-2012, 03:13 AM
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I know mine does it like that when the high pressure oil pump cant catch up. Example towing up a hill
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post #3 of 4 Old 05-01-2012, 01:31 PM
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Similar issue from me too.
Seems to come on around 35-40mph after around 5-10 mins of driving every time I use the truck. Not sure if it has to do with rpm, speed, temperature.
No performance issues while the CEL is on.
Plugged OBDII in but no codes registering [but just read post saying budget OBDII scanners are not effective on these vehicle?!?]

I have AFE stg2, MBRP 4" turbo back and TS6 programmer.

Any ideas????
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post #4 of 4 Old 05-01-2012, 01:50 PM
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get a decent cod reader and pull the codes. (scangauge, snap on, AE, etc) then worry about what they are

94.5 F250 Reg Cab 4x4 5 speed 4.10 276000 plus miles

97 F350 Crew Cab LB 4x4 5 speed 3.55 320000 plus miles (parts truck)

Originally Posted by alberta 7.3 View Post
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