4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

fast idle

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Old 06-15-2015, 11:43 AM
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jh4sberg
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Location: wisconsin
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Default fast idle

just finished rebuilding top end of a 1996 v6. added long tube headers and cold air intake. at the initial start-up engine idled at about 3000 rpm. checked all vacuum lines and found one bad connection and repaired it. engine still idles at 2100 rpm. could there be a problem with the throttle body?
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