Question about 1984 Ford F 150
Make sure when your spraying that you have a spray tube on it for pinpoint testing. Then disconnect one line at a time and plug both ends until you find the one that changes idle. Spraying without a tube will allow vapors to be picked up by the intake and give you a false reading. Also spray a short burst at each intake to head runner, could be an intake gasket.
Posted on Jun 03, 2010
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Posted on Jan 02, 2017
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