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Ranger will not idle but runs good at or near WOT new filters and IAC no help

(1990 Ford Ranger)
in Centerville, WA on October 11, 2012
1990 ranger 4.0v6 auto 4x4 127k miles good comp and oil pressure no smoke or noise if i keep my foot in it its good
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Popular Answer
of Greg's Orange Auto on October 12, 2012
ck throttle body for coking and clean as req if its fuel injected if not poss large vac leak
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on October 12, 2012
good answer greg
on October 12, 2012
check for a vacuum leak
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on October 30, 2012
nota ford fan, you have a vacuum leak.
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