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Old 02-24-2010, 11:07 AM   #1
53GMC
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Join Date: Jul 2009
Location: Washington, GA
Posts: 319
Idling issues?

Hey everyone....

my 1996 S10 4x4 vortec V6 needs a diagnosis....

when i first crank the truck up, it runs great (idles around 1000 RPM). If i horse the motor just a little, when i let off the gas it idles back around 1000RPM but will dip up and down from 1000 to around 750.
Any ideas what this could be caused from?
I have already changed the throttle/idle regulator out but it continues....

help?
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