Throttle Body Clean & Relearn- High Idle - Chevrolet Forum - Chevy Enthusiasts Forums
Old July 27th, 2015, 1:00 PM
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Throttle Body Clean & Relearn- High Idle

jlutty3's Avatar
CF Junior Member

Join Date: Oct 2010
Posts: 41
Ozarks, USA

December 18th, 2010, 10:27 PM   #1  
Throttle Body Clean & Relearn- High Idle

Above is the link that saved my sanity today.

At 100,000 miles on my 2007 Avalanche 1500 LTZ, I got the idea to clean the MAF sensor & TB with dedicated cans of CRC cleaners at a cost of $11.00 total for both. The hunch was that dirty above items would lead to spongy pedal response, drifting idle, and harsh light pedal shifts
During the TB cleaning, I was too lazy to disconnect the plug and accidentally gave it a good 360 degree+ twist.

The outcome was still- harsh low RPM shifts and random idle at 600, 1100, 1700, or 2000 RPM.

I installed a new pigtail TB plug harness and followed the relearn idle procedure at that link and has improved. 600 RPM idle and reasonable shifts are the rule now.

Just thought I'd share.

mandofscs's Avatar
CF Beginner

Join Date: Mar 2015
Posts: 2
garden grove

March 2nd, 2015, 9:33 PM   #2  
throttle body

can any body help i had my throttle body clean and had the same problem with the idle can u help me fix this problem thanks

Last edited by mandofscs; March 2nd, 2015 at 9:41 PM.
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