1988 Ranger climate control problem

Joined: Jan 30, 2008 Posts: 3

My heater and a/c blower no longer works. I first checked the fuses to find none of them blown. I tapped on the blower and nothing changed. I took it to a technician whom determind that there was no power to the switch and no power to the resistor. The harness leading into the switch does not have power.
The A/C light comes on when I press the button and it seems as though the A/C clutch engages though I have not seen it actually engage.
I do get hot or cold air pushed through the vents while driving on their respective settings. Air does not move through the system while on Defrost.
I can not even find a wiring diagram online nor in any books.

Joined: Sep 06, 2007 Posts: 11

The single most common cause of the problem you have is a burned out bulb.

The second most common cause is a bad ground at one or more of the lamp
assemblies.

Given the description of your problem, I expect you will find some sort of
misfire -- broken plug wire, bad plug, something like http://www.thepartsbin.com/guides/ford/ranger.html (ford ranger). But, DO NOT pick up any wrenches based on that guess, pull codes and fix what the truck is
asking you to fix.