[DiggerTo]

Hello everyone,
I have narrowed the noise under dash to the driver air mix motor. I look underneath and see an arm fighting back and forth making rattling noise. I also notice there is an arm coming from firewall which does not seem to be connected to the white plastic arm. See pic. Is this normal or possibly the problem? Is my task to connect that arm to the round part of the white assembly? It seems like they should fit together. I originally was going to remove the motor for cleaning but now wonder if this arm should be attached? Any advice on the arm and rectifying the noisy problem would be appreciated. Thanks in advance.

 

[Kevinmac]

Yes that arm should be attached. That cable is the water control cable (#17) Theremay need a retainer that keeps the cable connected, or its a snap fit.

2008 RDX SUV RDX 5-Spd Auto - 49 State Emissions (KA) | Heater Unit - Bernardi Parts Acura

acura.bernardiparts.com

 

[DiggerTo]

Thank you. I don't see any retainer so either missing or it snaps in place. I will attempt to connect. What is the purpose of this water control cable? Everything seems to work OK except for the noisy air mix motor despite it not being connected.