Wiring for heater

[Nuttz565]

Hey guys I have been reading over the forums for the last couple of days and boy am I glad I ran across this site. I recently bought a 72 F100. It currently has a 390 in her and runs great.The problem is there seems to be some faulty wiring. My blower to my heater only works sometimes. And I have a turn signal light that stays lit when I turn on the headlights.My question is is there a diagram of the wiring for the heater(I know it has a short because sometimes when i let out the e brake it rattles something in the dash and my heater will work).Thanks guys

[fordman]

here is the main page for the wiring diagrams. i use the top 72 master diagram because it is a faster download. the enhanced one takes a minute or two longer to open up. http://www.fordification.com/tech/schematics_h.htm

[Thunderfoot]

This diagram from the 69 will be the same http://www.fordification.com/tech/wirin ... heater.jpg from the sounds of what you have going on with the E-brake I would suspect a problem with the Fuse box, check/clean the fuse contacts and check for a possibly broken wire connection on the back of the fuse block.
For the light issue, it sounds like that light might have the wrong bulb installed in it check that it is an 1157 bulb.