Question 1

A/C condenser leaks (Silverado 1500 K2XX)

Accepted Answer

Many 2014-2016 GM trucks suffer A/C condenser leaks or failure, causing warm air from the vents. A revised condenser addresses the problem and the issue was the subject of a class action.

Question 2

Torque converter shudder on the 8-speed automatic (Silverado 1500 K2XX)

Accepted Answer

Trucks with the 8L90/8L45 8-speed automatic can shudder or feel like driving over rumble strips at 25-80 mph, caused by moisture in the transmission fluid affecting the torque converter clutch. GM fixes it with a double/triple flush using updated Mobil 1 LV ATF HP fluid.

Question 3

Active Fuel Management lifter failure (5.3 V8)

Accepted Answer

GM cylinder deactivation (AFM, later DFM) uses collapsible lifters that can stick or collapse, causing a ticking noise, misfire, a check engine light (P0300 series) and possibly a bent pushrod or damaged camshaft. Common on 2007-2013 5.3 V8s and again on 2019-2022 5.3 V8s.

Chevrolet Silverado 1500Silverado 1500 K2XX

Known issues and common problems

Chevrolet Silverado 1500Silverado 1500 K2XX

Known issues and common problems

A/C condenser leaks (Silverado 1500 K2XX)at 80000 km · 1 solutionsLow

Torque converter shudder on the 8-speed automatic (Silverado 1500 K2XX)at 80000 km · 1 solutionsMedium

Active Fuel Management lifter failure (5.3 V8)at 160000 km · 1 solutionsHigh