No heat or ac

[KevinAltemara]

So I took the truck out a few days ago and i went to turn on the heat but only cold air came out, I knew the switch was messed up so I put it on cold and warmer air came out but it was still cold, a few weeks ago I had HOT air but it just stopped


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[Shellkamp]

might the blend door motor or the coupler for it - look under the passenger side of the dash near the center of the truck and turn the heating/cooling dial from one to the other and see if the motor moves. if it moves but the air doesn't change from heating to cooling or vice-versa, you probably have a broken coupling.

go to www.heatertreater.net to order a new coupling (if that's what it ends up being) - they are made of metal instead of plastic.