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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Flashing check engine light when I accelerate

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Old Apr 23, 2020 | 04:35 PM
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Eoin Harland's Avatar
Eoin Harland
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Flashing check engine light when I accelerate

I have a 1990 f250 5.8 efi and whenever I’m accelerating the check engine light will flash but doesn’t flash at idle. Ran codes and came back with a egr pump failure would that cause the light?
 
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Old Apr 23, 2020 | 04:53 PM
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The light only flashes when there is misfire. I think you need a better scan tool to be able to read these codes.
 
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Old Apr 23, 2020 | 05:47 PM
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Originally Posted by Mark Kovalsky
The light only flashes when there is misfire. I think you need a better scan tool to be able to read these codes.
I have an obd1 for Ford and Lincoln. I’ll try again to see if I get any other codes
 
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Old Apr 23, 2020 | 05:54 PM
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Why did you start another thread on the same topic?

https://www.ford-trucks.com/forums/1...-90-5-8-a.html
 
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Old Apr 23, 2020 | 06:34 PM
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Originally Posted by My4Fordtrucks
Why did you start another thread on the same topic?

https://www.ford-trucks.com/forums/1...-90-5-8-a.html
does it really matter?
 
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Old Apr 23, 2020 | 06:42 PM
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So when members give you an answer, they dont have to figure out which thread to answer, and you may put some information, in one and not the other ,and they will stop helping.
 
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