Windshield wiper question, hope this isn't too dumb of a question Options

[David_S]

I was messing with my wipers today and can't get them to work on high, figured out I need a new switch in the column. I also noticed that Hayne's says this is a two speed motor, so I would think that the switch would have three positions(off, low, and high), but my switch has four positions. What is the fourth position for? Car is a 1973. What am I overlooking ??? Thanks .....David

[SirAndy]

I was messing with my wipers today and can't get them to work on high, figured out I need a new switch in the column. I also noticed that Hayne's says this is a two speed motor, so I would think that the switch would have three positions(off, low, and high), but my switch has four positions. What is the fourth position for? Car is a 1973. What am I overlooking ???   Thanks .....David

if position 4 is down, then it's for the intermittent they never hooked up.
some cars have it on the column, but it was never used.


you can, however, add a sort of intermittent
by adding a intermittent relay to your wire harness.
the factory has already a place reserved for that.
however, that intermittent relay only works in conjunction with your
windshield washer, meaning your wipers will run 3 or 4 times when
you activate the windshield washer ...

a article on how to hook this up can be found here:
Wiper relay instructions ...

later,
Andy