I have had the same suspicion. With the exception of head bolts, the sizes involved and the initial torques, plus the additional rotation angle, don’t seem to be enough to be causing yield. However I have not done the actual calculations. It would depend on the alloy used. The only motivation to do this would be to sell bolts, and I can’t imagine this small amount would be enough of a profit incentive for GM. One could do the analysis to determine if they are scamming us, but I haven’t done it.
OK you say you could hang meat but what was the actual temp? One of the AC systems job is to remove humidity that we feel on our body your new system removed alot of humidity as that is were the water comes from on the ac coils and that made it feel colder. 80 degrees with high humidity will feel hot vs 80 degrees with low humidity will feel alot cooler.
I was using recirc/max air. Especially if it really hot i start out by lowering the front windows a little with regular ac the go to recirculation after a few and rolling windows up. And it does not have the newest refrigerant. It has per the info under the hood r134. Not the new r1234yf.
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