| Professional Automotive Repair Technical Discussions for July 13, 2025 International Automotive Technicians' Network (iATN) - Members Only  | 
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Open Help Requests for GM
	
| Help Request | Answers | |
| 2015 Chevrolet Silverado 1500 LTZ 5.3L Lifters VIN: 1GTV2VEC5F This truck has a collapsed AFM lifter on cylinder 7. Intake valve is not opening at all. Pulled rocker and pushrod, not bent. I don't hear any noise and according to the customer, it never did make noise. They floored it to pass somebody, heard a pop out t...  | 				
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Fixes & Summaries for GM
	
| Fix/Summary | Answers |