Rick's Free Auto Repair Advice

Posts Tagged: rear evaporator core failures

Repeat rear evaporator coil failures — GM

Avoid repeat rear evaporator coil failures — GM GM has issued a service bulletin #16-NA-046 to address repeat rear evaporator core failures on the vehicles listed below. GM has identified the blower motor as the cause of repeated failures. Replacement of the evaporator core and the blower motor with an updated design will fix the problem. What causes the repeat rear evaporator core failures on GM vehicles? GM has determined that copper dust emitted from the rear blower motor brushes accumulates on the aluminum surface of the evaporator core fins … Read More


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