NHTSA Complaint #11712615 — 2017 CHEVROLET SILVERADO 1500

At 54,900K miles my truck started to experience a tapping sound from the engine. I took it to a shop and was told that the Auto Fuel Management system can cause problems with the lifters. I tried to use my 200,000/10 year Warranty, but the warranty company refused because I went over 6 months on my oil change. The cost of repairs was over $6,900 and the push rods were bent, one lifter was broke off, the cam was damaged from the lifters and a piece on the timing chain was broke. Chevy knows there's a problem with the 5.3L Engine and refuses to fix it. No warning light ever came on. This problem first appeared in December of 2025 around 54,900 miles. I have since had the vehicle repaired and I kept all the parts. Chevy should recall this engine instead of letting their customers pay the repair costs for a flawed design caused by their AFM System. I was told to stop driving my vehicle because if I continued to drive it with the tapping sound it could cause the engine to blow up. I also have an After Market Warranty which would not cover the repair because Chevy issued a Technical Service Bulletin about the problem, Bulletin No.: 19-NA-219.