A different climate control problem

[MossyOak07]

I did search this and couldn't find my problem. I set the climate control for a certain temp. Lets say 68. My climate control goes from one extreme to the other. It will blow AC and cool it down, then all the sudden the heat comes on and heats it up. It usually seems to blow on Hi fan also unless I manually turn the fan down. Its like it never stops with either AC or heat. I really dont think its the blend door because it does use both AC and Heat. Any suggestions?

 

[swetrid]

There is a in car temp sensor that could be bad. Sometimes the white hose that attaches to sensor falls off and can cause erratic temps.

 

[MossyOak07]

Any idea where this is?

 

[swetrid]

What year?

 

[MossyOak07]

98

 

[swetrid]

The sensor is located right to the right of the center vents. Almost looks like a miniature vent and has a white hose attached to the back of it that goes down to the heater box.

 

[MossyOak07]

checked the hose that is fine