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09-28-2015, 07:36 PM
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#1 |
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laying low
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,513
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disabling AFM on Yukon?
I'm looking to see if anyone here has deactivated the AFM feature on their trucks. Active Fuel Management. 8 to 4 cylinder operation.
I have read some GM service bulletins regarding this feature and related oil consumption. I just found this device online and wonder if anyone has used it or something similar with success with no ill effects. http://www.autoanything.com/performa...disable-device
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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10-01-2015, 02:41 PM
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#2 |
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Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
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Re: disabling AFM on Yukon?
I have mine turned off on my 2011 GMC 5.3. We did it when we did a EFI Live tune on it. 130,000 miles and no adverse affects.
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Frank |
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10-11-2015, 02:49 PM
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#3 |
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Registered User
Join Date: Dec 2010
Location: Waxahachie, Texas
Posts: 144
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Re: disabling AFM on Yukon?
I used the "range" disabling device. Google search for a discount coupon. Got mine for 20% off. Makes the Tahoe very driveable. Getting about 1/2 - 1 mpg better mileage since I don't have to dog it so much. Highly recommended if need to maintain your warranty.
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