DFM and lifters question?

[BamX31]

On 10/21/2021 at 12:58 PM, Jsd said:

Someone above misunderstood me about mileage. I was getting 21 mpg and after the Range delete it went to 17 mpg. 

I too get between 16-17 mpg with the Range device in place

[driver1965]

I understand the concerns of rising fuel prices (paid $4.65 last night in Camarillo, CA). However, we purchased trucks, not 4-cylinder scooters to drive around. Trucks get worse mileage, period. My mileage dropped w/ the Range control, Pedal Commander, leveled, valence removed, Cold Air Intake, auto-stop bypassed, and 275/65r20 Falken Wildpeaks. All of this on a 5.3 v8. I had the same engine on my old '08 Yukon in which I sold to my mechanic after 178K. His wife now drives it. I would ask all who have the issues what type of driving are you doing/what are you hauling? However, I can still make Vegas on one (1) tank of gas. Enjoy your truck. Cheers.

[dgstarr63]

My 2021 Silverado 8 speed had the hard downshift to 1st. The dealer replaced the valve body and it has been perfect ever since. If you are still on the powertrain warranty, you should 9nsist on this fix