P0645 a/c clutch relay

txoutlaw250

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Has anyone dealt with this before? A/c is only lowing hot through defrost. I can hear the compressor cycling. Just know starting to diagnose but can’t find anything 6.0 related online.
 

DEEZUZ

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Vacuum pump on pass fender well should solve your defrost only issue.

But for ac, I'd check the charge level.
 

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