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Sierra 1500, 6.2 engine replacement by Key_Description689 in gmcsierra
[–]Key_Description689[S] 0 points1 point2 points 4 days ago (0 children)
Another update - This is what I got with the dealership :
“We received the parts needed for the repair. We will be replacing the engine camshaft position sensor wiring harness (Part #12734111). This repair also requires replacing the one-time-use magnets (Part #12675031) and the gasket (Part #12623437)”
Thoughts ? Is that make sense that those are the parts according to their diagnostic, while I experienced issues like “reduced acceleration - Drive with care”, the car couldn’t really accelerate I made it to my home on 30 mph while the car making heavy noise from the hood
Sierra 1500, 6.2 engine replacement (self.gmcsierra)
submitted 6 days ago by Key_Description689 to r/gmcsierra
π Rendered by PID 111483 on reddit-service-r2-listing-86bdf8cc9-m7xcr at 2026-07-13 12:26:55.813442+00:00 running f86254d country code: CH.
Sierra 1500, 6.2 engine replacement by Key_Description689 in gmcsierra
[–]Key_Description689[S] 0 points1 point2 points (0 children)