I have a 2002 Pontiac Bonneville.The heater works on passenger,s side but not drivers side.Any ideas?
I have a 2002 Pontiac Bonneville.The heater works on passenger,s side but not drivers side.Any ideas?
dual control hvac systems are complicated could be a broken blend door or its actuator elec control at the control head wow it could be any # of things
Most likely a blend door actuator.
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