No continuous air in 2007 Tundra

My air stopped blowing and I found out that I needed to replace the blower motor. I did that and now if I move the fan dial over the third mark the fan turns on then off. If I keep it at 3 it runs forever. But at 3 it takes forever to cool the cab down. Anyone with any other fix, truck very uncomfortable when temp is 102.

 

Replaced blower/motor recently. When troubleshooting I measured 0-12 vdc variable at harness in increments through out fan range switch.
Maybe measure your volts thru out switch. If variable throughout thinking bad new fan. If not maybe a switch issue.
Good luck.

 

Ok, Trooper2 I will look at that and see what happens. Thanks.

 

Check your blower resistor. They tend to go bad on the low setting because that's what has the most resistance. 2 screws easy check. Your blower motor may have not needed replacement.

 

Rockgate do you know the part number for the resistor so I can geta new one??

 

I do not. But I would check it before buying one. So you're not just throwing parts at it and not fixing it.