Hi everyone,

First let say that is a great site, im glad i found it. A little info, i have 1999 f150 4x4 lariat ext cab with a 6" lift and 3" body lift and a 2002 expedition with a 6" lift.

My question is, when i bought the f150 used i never checked to see if the heater worked, so when i went to use it the other day all that came out was cold air, the defroster works fine. Someone told me to check the wire on the relay or something to make sure it is ok, is this true. What else should i look for?

thanks in advance for your help