This morning the rotating switch that controls the heater fan would no go to the off position. It now has a springy feel not the precise notches it had before.

The switch is cheap enough, but has anyone removed the dash panel to get to this? Looks like the whole unit, speedo and all has to come out.

Any tips appreciated. This will be a DIY project for sure.

BTW, this baby has 185k on it now, and I have to add no oil between changes! And I change at 7,500 intervals (I used 7,500 mi Synthetic). Still runs great. She's like the energizer bunny

 

Check the plastic knob - sometimes it just breaks the collar where it slides onto the actual shaft of the switch. If this is the case, you'll be able to turn the shaft with pliers & verify that the actual switch is OK.

 

You may be right. That's what it feels like. I'll pop it off tonight. I'd still like to pull the dash, as the light bulb behind the vent buttons has been burned out for years.

 

Well, looks like it was the easy fix. The knob shaft was cracked. I
super-glued it, then wrapped it with safety wire and coated it with JB Weld.

My wife was laughing, because I told her I could get a new one for less than
$10, but I wanted to try and fix this one :-)

BTW, if the panel with the control unit has to come out, that whole bezel
that also houses the Speedo and Tach has to come out as it looks like one
solid unit.

Luckily I don't have to do that!