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2007 Silverado 5.3ltr.

6.2K views 22 replies 7 participants last post by  Willltz  
There is no magic number. You might get 50,000 miles out of it or 400,000 miles. If you have an AFM failure at this point, I'd replace the motor and do a full AFM delete on the replacement motor.
 
Basically replacing the cam and lifters and associated parts. And you have to do a tune to permanently turn-off AFM in the ECM.

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