My ac and heat work but only blows out on the floor and defrost and also making a clicking noise under the dash. What can I do to make it work?

ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#13672 Closed 2003 Chevy Trailblazer public

Clicking noise under the dash and the ac and the heat is not blow thru the face vent. Its only blowing on the floor and the defroster.

Sparky

More than likely the mode actuator has failed. I would suggest placing your hand on the actuators to confirm which one is clicking and then replace that actuator.

 

2003 GMC Envoy, No A/C Vent Control, B0263

2004 Chevrolet Trailblazer, Identifying Heater A/C Actuators

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