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Old 09-09-2018, 09:13 AM   #10
drperry
 
Drives: Chevy Blazer
Join Date: Sep 2009
Location: Grande Prairie, AB
Posts: 300
The AFM doesn't cause the shudder... GM's mushy trans tuning does... Otherwise there'd be torque converter issues in all the V8s since 2007.

That being said, disabling AFM is still a good idea, lol. The lifters last longer (early AFM had collapsing lifters, and I don't know if GM ever fixed them), and on the trucks, at least, there wasn't any real difference in fuel mileage.

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