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My 95 Ford Ranger 2.3L, manual tranny, idles way high as I coast to a stop.

(1999 Ford Ranger)
in Kansas City, KS on September 20, 2012
No matter how long I coast, as soon as the truck comes to a complete stop, the idle starts dropping to normal exactly 2 seconds after the truck comes to a complete stop. It ALWAYS does this. Just cleaned the IAC valve a week ago. This actually made it worse. It idles even faster now as I roll to a stop with the clutch in.
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of Greg's Orange Auto on September 21, 2012
clean iac does not really help if its the 2 way motor issue inside. a quick way to test iac is unplug while veh is idleing and rpm should drop approx 50 rpm if it stalls or doesn't change idle most likely its bad
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on September 21, 2012
Thanks, globalhelper. Much appreciated. However, I'm strictly a backyard dude. What is a "two way motor issue inside"?
of Greg's Orange Auto on September 21, 2012
in the iac at the big end is the motor but its not repairable, if its bad you need a new iac
on September 21, 2012
Got it!! Thanks!!!!! What are the various sensors that tell the computer brain to adjust the idle (adjust the IAC?) when the clutch is pushed in and I'm coasting, and what sensors tell the computer when the vehicle is at a full stop (I'm assuming there must be some such sensor that senses the vehicle stopping because the idle immediately goes down to normal at the moment the vehicle stops.)
of Greg's Orange Auto on September 21, 2012
MAP SENSOR SEES VAC DECREASE AND FEEDS TO COMPUTOR AND THAT FEEDS IAC ALONG WITH OTHER SENSORS DOING THE SAME THING VIA ENG VACUUM
on September 21, 2012
cool. Thanks so much, man! Most everything I've found mentions checking vacuum leaks for this problem, so I'm going with that as my next step after reading your last response. I'll let you know if I find any and if that's the fix.
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