Lost fan speeds!!

[mustangsquared]

Well for those that have watched the news last week you know NC got hit with bad rains... and I power washed the entire underside of the 06 Stang driving on flooded roads to work (yes, I grounded myself for abusing my baby). I now noticed that when running the ac or heater that the blower only works when switched to "4". "1" through '3" do nothing. Any ideas??

 

[partsbill]

check your blower motor resistor, that controls your fan speeds,
The blower motor resistor can be accessed from below the RH side of the instrument panel,
it's common for condensation to build up when running the a/c on hi and drip on the resistor
shorting it out, it's possible that you had some water intrusion and it contacted the resistor,
I have replaced the resistor in my 91 GT a couple of times, but so far no issue with my 06 GT.

 

[mustangsquared]

excellent!! I will stick my head in there and look.