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After driving a bit when weather is hot it drops a lot of power, chokes, bucks badly

(1990 Ford F-350)
in Harrisburg, PA on April 06, 2010
1990 Ford F350 w/ 460 Fuel injected engine. after driving a bit when weather is hot it drops a lot of power, chokes, bucks badly. the fuel filter is new. there is no catalytic converter & there are no vacuum leaks. very frustrating please help?
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Popular Answer
on April 06, 2010
first thing i would try is a fuel filter. if that does not work, have the fuel pressure checked.

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on April 06, 2010
Also check for vacuum leaks!
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on July 22, 2013
We all ready done this to the truck and it is still choking we checked fuel pressure check check vacuum leaks
on August 15, 2014
My F350 1994 pretty much poops out above a 100 degrees. It is a vacuum lock in the fuel line I am sure because as soon as the weather cools down a bit it works fine. I was told that a "fin" could be installed around the fuel line prior to entering the carburetor to help keep it cool,but have not tried it.
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