2019 Sierra 6.2L PIP5606- Bent Pushrod

[Primetimeups]

Well my 6.2 in my 2015 Silverado has done this twice now bent the push rod and this time broken the spring off the lifter which is an AFM Cylinder in less then 10,000 miles now. Just after I replaced all the lifters with new OEM and new Injectors OEM and disabled the AFM it bent the number four cylinder push rod and snapped the top of the push rod off about an inch down. How do you fix this issue? Replace the Head is that the culprit?

[William Amtower]

There is no issue. I have 32,000 on my 2019 Sierra Denali Ultimate with the 6.2 no issues. I haul heavy loads an occasionally tow 7500 pounds. The only issue was the defective valve spring issue from one of the suppliers. The supplier over hardened the a batch of springs and then failed to run the required quality control tests that would have caught the bad batch. The springs were so hard they snapped like a pretzel. I would be surprised if they are still in business after GM got done with them.