I have a 1988 Ford F150 6cylinder pickup, what size fuel filter do I need...3/8" or 5/16"

Asked by lneasy2 Jun 19, 2012 at 12:34 PM about the 1988 Ford F-150

Question type: Maintenance & Repair

Ford F150, 1988, 6 cylinder pickup
Truck bucks when going uphill. I used fuel injection cleaner, and it cleared up for a while, and then started bucking again. I think I need to replace the fuel filter. To my surprise, the truck has a carburetor and is not fuel injected, as I thought. What could be causing the truck to buck? It isn't getting enough fuel for an uphill climb. Could I use a "replacement filter" instead of replacing the entire filter system? What is the best course of action to clear this problem up?

1 Answer
65

Matt answered 11 years ago

FRAM Part # G3802A is for the direct change over for the original fuel system located on the frame under the cab. if its carbed now check to see if the filter is still there on the frame, if not just splice a 3/8" fuel filter on in the rubber line. if it still bucks uphill check to see if you're fuel pump is acually moving enough fuel. try the filter first because its cheaper than replacing the fuel pump first.

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