Re: Ac/heater fan only blows on low and medium speeds.
I thought I responded to this. There are two things to check. First is the switch in the HVAC selector in the dash. They can easily get cooked and loose a terminal or wire connection. The other is the ballast resistor located on the HVAC housing under the glove box. They can get hot too and get fried
230 hp 4.3L Chevy
Built 4L60E with manual lockout
Atlas 4 speed
Griffin radiator
On board air
Warn 9.5ti on custom bumper
7.5" RE front and bastard pack rear on custom long arms
30 gal gas tank
lockers
And a bunch of other stuff
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