[rangr6]

2013 Optima LX. The blower motor speed slows down and speeds up while driving . It does not does this at idle speed. Any ideas on what to check first? Thanks in advance.

 

[kiaguy002]

Does the blower motor speed change if you rev up the engine with the vehicle in park?

 

[rangr6]

Does the blower motor speed change if you rev up the engine with the vehicle in park?