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| F Series Forum covers questions and discussions regarding Ford F-150, Ford F-250, Ford F-350, Ford F-450, Ford F-550, Ford F-650, and Ford F-750. |
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#1
04-20-2004, 04:40 PM
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f 150 backfires
Well, the truck runs pretty good now but it backfires when I am going down the highway and take my foot off of the accelerator completely. One person I talked to said it might be because the heat riser valve doesn't have a vacuum hose on it. What port is that suppose to be connected to? I have a Motorcraft 2150 carburetor. Is there something else I should check?
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#2
04-20-2004, 09:48 PM
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Re: f 150 backfires
try retarding the timing, could be a blown powervalve.
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