NHTSA Complaint #11684585 — 2022 GMC SIERRA 1500

My motor locked up a year ago. Before the recall. At 74k miles. GM stated they did not know why it happened. Although there was 6 of the same trucks in their lot under 20k miles with the same problem. I was forced to pay out of pocket. I notified my GM dealer that my engine was knocking at 15k miles and they did nothing. Now that I have a new engine I have brought it to the dealer 3 times because it is also knocking. They’ve told me they hear it but theirs no code so nothing wrong with it….. GM refused to help me in any way nor will they help me get a reimbursement for their manufacture defective engine that I payed for. I had to take a $10k loan out to get back on the road. Every day that passes I am paying more interest because of GM. They will not even let my bring it in for an inspection and the heavier weight oil (they want me to pay diagnostic fee HA) I don’t want to take legal action but it feels like if I don’t, GM is going to ruin my life. Such a Blatant disregard for the customer. This whole thing has put me in such a terrible financial crisis I’ve been living check to check since this happened. PLEASE HELP ME.