When a car comes in with a specific problem it is important to not just replace the parts but to determine why the parts failed.
Today’s patient is a 2002 Grand Prix with a broken heater-air conditioning blower motor. Testing found both the blower motor and blower motor resistor had failed. Once they were removed for replacement the real problem was found. Both the blower motor and resistor showed signs of being wet. Rust on the outside and inside of the motor and on the resistor as well as a corroded Continue reading