Testing Windshield Wiper Motors

[racerx8413]

Where does the windshield washer pump play into this? in the pictures above, the 2 terminals, what should go there? I'm running an aftermarket wiring harness, so doing a lot of this from scratch.

Also, while the wiper motor terminals are clear, but what goes to what, from the switch?

my switch has the 3 terminals, 1 high, 2 low, same with the wiper motor.
_ 1 goes to ?

_ 2 goes to ?
_ 3 goes to ?


and on the wiper motor,

_ 1, 2, or 3?

_ 1, 2 or 3?
_ Power

_? _ ? on the backside of the pump

I'm also assuming that the washer function gets jumpered in here somewhere?

[LockDoc]

Originally Posted by racerx8413

Where does the windshield washer pump play into this? in the pictures above, the 2 terminals, what should go there? I'm running an aftermarket wiring harness, so doing a lot of this from scratch.

Also, while the wiper motor terminals are clear, but what goes to what, from the switch?

my switch has the 3 terminals, 1 high, 2 low, same with the wiper motor.
_ 1 goes to ?

_ 2 goes to ?
_ 3 goes to ?


and on the wiper motor,

_ 1, 2, or 3?

_ 1, 2 or 3?
_ Power

_? _ ? on the backside of the pump

I'm also assuming that the washer function gets jumpered in here somewhere?

This thread might help with the wiring.

http://67-72chevytrucks.com/vboard/s...d.php?t=584603

LockDoc

[sjburk]

I recently bought a new two speed wiper for my 67 gmc and it worked fine when I tested it before install. Ever since I put it in it will not work. I do not have the washer motor on the wiper motor because I didn't think it mattered and I checked the voltage and there is 12 volts everywhere in the circuit all the way to the wires that plug into the switch. The only thing I haven't done is tested the switch with an ohm meter because I do not know how. Could you please explain exactly what you mean by that i do have a dmm so I can if i know how. And any other suggestions to try are welcome

[LockDoc]

Originally Posted by sjburk

I recently bought a new two speed wiper for my 67 gmc and it worked fine when I tested it before install. Ever since I put it in it will not work. I do not have the washer motor on the wiper motor because I didn't think it mattered and I checked the voltage and there is 12 volts everywhere in the circuit all the way to the wires that plug into the switch. The only thing I haven't done is tested the switch with an ohm meter because I do not know how. Could you please explain exactly what you mean by that i do have a dmm so I can if i know how. And any other suggestions to try are welcome

The washer would not make a difference as long as all of the original wiring was there... Is the switch installed in the dash and the nut tightened up? It has to be to work because that is where the circuit gets it's ground. As far as testing the switch, unplug the connector from the switch and set the meter to the lowest ohm setting, which should be 20k ohm. Turn the wiper switch to the low position and touch one of the leads to the switch body and the other lead to one or the other of the connectors. You should get a reading when you touch the low speed connector (I can't remember which is which). Then turn the switch to the high setting and touch the other connector you should get a reading. In the off position you should not get a reading.

LockDoc

[JennCat]

This has been an excellent read. I have gutted the dash on my '70 and cleaned it up, replacing some of the switches. Presently I have a two speed wiper setup with a push in wash.

I would like to replace the switch such that I have an intermittent feature but I do not know if I can just replace/install the switch or if I would have to upgrade the motor also.

I have been looking at different switches and have run across a term I am not familiar with: coast to park and dynamic park.

I have the rectangular motor like the one pritch has pictured. I believe it is dynamic park (?)

[LockDoc]

Originally Posted by JennCat

This has been an excellent read. I have gutted the dash on my '70 and cleaned it up, replacing some of the switches. Presently I have a two speed wiper setup with a push in wash.

I would like to replace the switch such that I have an intermittent feature but I do not know if I can just replace/install the switch or if I would have to upgrade the motor also.

I have been looking at different switches and have run across a term I am not familiar with: coast to park and dynamic park.

I have the rectangular motor like the one pritch has pictured. I believe it is dynamic park (?)

Glad you enjoyed the thread. One of our members on the board sells the delay kit on the parts for sale forum. Here is a link to his for sale thread.

http://67-72chevytrucks.com/vboard/s...d.php?t=593984

I am not familiar with those terms either so I can't help you with that.

LockDoc

[Fasteddieb]

Wiper motors are voodoo! Until I read this thread. Now they are just a pain in the brain!
I have a 69 C10 with a 3 terminal (2 speed?) wiper motor. 12V at the motor. Jumped the wires as instructed above and get just one speed . Removed cowl and freed the wiper transmission arms so motor could run free. Still just one speed.
Suggestions?
Thanks guys!