[mattherrera922]

Hey guys my heater is acting up all of a sudden... it will only work less than about 50% if the time and its starting to get cold... Any suggestions or solutions? Anything is appreciated!

 

[Yadkin]

Hey guys my heater is acting up all of a sudden... it will only work less than about 50% if the time and its starting to get cold... Any suggestions or solutions? Anything is appreciated!

First make sure you have your cooling system topped off and if its still a problem look through the diagnosis and testing here:
Ford Service Manuals - DIAGNOSIS AND TESTING

You could have a sticking mode door.

 

[HenryinFlorida]

I am happy to say that in the 3 1/2 years I have had my Mustang I have never turned the heater on.......

 

[Yadkin]

You shoulda been here in the mountains this weekend when we has 2" of snow. The Floridians were in a panic...