I have the same problem & pulled my hair out for awhile.
I think it's just a loose connection where it plugs in.
One day I managed to get my hand up there and if I pushed up on the plug, everything worked fine. When I let go, it only worked pushing the wiper wash in.
I haven't pulled the light switch yet to get up in there to see if I'm just not plugged in all the way, or if it is just a loose wire in the plug. In which case is a relatively easy & cost free job, IF you can reach it. LOL [img]smile.gif[/img]
One reason I haven't gone in there to fix it right. I never drive in the rain anyway, that's why it hasn't been such a pressing issue. [img]smile.gif[/img]
67 RS 327, 4-speed, posi, done.
67 Modified, 454, TH-400, posi, under construction.
67 SS 396, 4-speed, basket case.
72 RS, sitting, partially done.
55 210 post, 2 door, 327 4-speed runs good.
55 2 door post, gasser project
69 Cadillac ElDorado
69 4x4 suburban
Some mornings, it's just not worth chewing thru the leather straps"