SP Tools has developed a fan clutch wrench that the company says allows technicians to hold the water pump pulley securely while removing the viscous fan clutch. The wrench is designed for use on BMW ...

One reason heavy trucks repeatedly experience short A/C clutch or compressor life is low voltage at the clutch coil lead wire. On a 12-volt system, the compressor’s clutch needs at least 11.5 volts to ...

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