IAC motor replaced high idle
#1
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I just replaced the IAC motor and cleaned the throttle body.
Did this because of inconsistent idle...would rev itself up at stops and could even feel the truck pull itself forward at stop lights.
So now that I have a new IAC and clean TB it is a consistent idle, just very high. sits at about 2000 RPMs
I'm wondering if there is an idle relearn process or something like that to let the truck know how to idle properly.
Does it need to be reprogrammed by a dealer?
anyone know?
Sorry, I guess specs on the truck might help...2001 SLT 4.7L 2wd
Did this because of inconsistent idle...would rev itself up at stops and could even feel the truck pull itself forward at stop lights.
So now that I have a new IAC and clean TB it is a consistent idle, just very high. sits at about 2000 RPMs
I'm wondering if there is an idle relearn process or something like that to let the truck know how to idle properly.
Does it need to be reprogrammed by a dealer?
anyone know?
Sorry, I guess specs on the truck might help...2001 SLT 4.7L 2wd
Last edited by rockgod; 10-10-2016 at 05:31 PM.
#3
#4
#5
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I know this thread is a couple years old but had a similar problem on my 5.9 Magnum engine.
swapping the ECU solved it.
tried 3 different IAC including one from a known good engine. None would close so the RPM surges to 1500+.
$90 ECU from a boneyard today instantly solved it.
swapping the ECU solved it.
tried 3 different IAC including one from a known good engine. None would close so the RPM surges to 1500+.
$90 ECU from a boneyard today instantly solved it.