Technical Service Bulletins


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Eliminate the Chevy Rub

Certain 2015-2016 Chevy Express vehicles equipped with a rear HVAC system may have contact between the rear leaf spring shackle bolt and the rear HVAC coolant lines that may rub through. The rubbing creates a coolant leak that can cause the engine to overheat, as well as a loss of HVAC performance.

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Fixing BMW Water Pump

This bulletin applies to 2012 7-Series BMW vehicles. A pulsing or droning noise may be heard from the engine area of the vehicle. The auxiliary water pump or the water hoses that lead from it may be in contact with adjacent components, or the auxiliary pump may be installed incorrectly on the rubber mount.

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