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    2005 Peterbilt 335 clutch fan runs all the time

    First post here We have a 2005 Peterbilt 335 water truck with a Cummins engine. The engine fan clutch runs all the time no matter what. When I put my meter on the two pin connector going to the air fan control solenoid I get 10.88 volts. Ground wire checks out good when checking continuity to...
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