wiper switch question/issue

[davebar]

Was not sure where to post this, so move it if in wrong spot please...

Anyway, I have a 99 B4000. The wiper switch was bad so I picked up a new one and installed it. Its a variable inter switch with lots of adjustment, however, it only works on High and has 1 variable setting. All the other settings do nothing. The parts place i got it from said its the correct switch for the truck. My old one looked the same but didnt work,. so I am not sure..

Can I change the relay to one that does have multiple adjustment or what else can I do to get it work right?

Thanks

Dave

 

[kimcrwbr1]

Are you sure it is the switch. were all the connectors good and clean pull the wiper motor connector apart and look for corrosion. The older fords have a govenor up under the dash by the fuse box. Get a schematic and start tracing wires I dont have one to look for you.

 

[nitrofan1]

Multi-function switches can be a P.I.T.A. to install. As stated above check the connectors. It may be a short in the motor or the governor.

 

[Earl43P]

PM me your e-mail address, I'll send you the 2000 schematics.

Page 90-5, 81-1
Fuse 16
A couple relays, pg 11-3.

 

[killj0y]

on my 96 its easy to change out the multifunction switch just like 5 screws lol. Have you check for continuity on all the wires? Bad grounds? check the harness on the switch too.