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Old Oct 11, 2011 | 05:21 PM
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460 issues

I have a '91 F-250 with a 460. The truck will start and run well for about 5 minutes and then bog down and lose power. I know very little about this motor and was wondering if anybody could give me an idea of what type of issue this sounds like. Everybody I talk to gives me a different diagnosis and I don't really want to just start replacing everything.
 
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Old Oct 11, 2011 | 09:19 PM
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Have you pulled a spark plug yet ?
 
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Old Oct 11, 2011 | 10:27 PM
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Originally Posted by joesluckyseven
I have a '91 F-250 with a 460. The truck will start and run well for about 5 minutes and then bog down and lose power. I know very little about this motor and was wondering if anybody could give me an idea of what type of issue this sounds like. Everybody I talk to gives me a different diagnosis and I don't really want to just start replacing everything.
Check for spark.

Check for fuel.

5 min would lead me to think fuel pump or filter.

This is an EFI motor, right?
 
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Old Nov 2, 2011 | 01:01 AM
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91 efi yes. like he said check for spark check for fuel.
Dose it die under a load?
 
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