idles too high when warm and too slow when cold..

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idles too high when warm and too slow when cold..

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idles too high when warm and too slow when cold.. - 1/17/2005 8:39:02 PM

chuck322

Posts: 8
Joined: 4/25/2004
From: Canada
Status: offline

my 84 5000 S starts well, but wants to idle when cold around 400/500 RPM which i think is too slow when cold. when engine is at operating temp, in Park it will idle at around 1100/1200 RPM. this seems backwards. do i have a vacum leak. or defective cold start valve??