Repair guides and support for automobiles produced by Volvo Car Corporation.

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AC compressor will not run automatically 134 fully charged new relay

2005 Volvo V70 why will ac compressor not turn on automatically? 134 charged, new relay.

Compressor will run if straight wired. full 12 volts to relay

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Marvin Johnson ,There are pressure switches and various sensors on that car hat may effect the AC system, best to have the car scanned as a first step for error codes that could pin point the fault(Eng light does not have to be on for error codes to be stored). Some of the auto parts suppliers offer free code reading like Pepboys, Nappa, Advanced auto parts,etc and some of the guys are very knowledgeable and may have seen the issue often and put you on the right track. It may take a better equipped shop to retrieve AC codes. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

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