Electric Windshield Washer Question

[anlauto]

Okay....I have weird question...Do ALL 2spd wiper motor cars have a manual foot pump washer ? and ALL three speed wiper motor cars have electric ?

Is it possible to have electric washers with a 2spd wiper motor ?  Because the electric washer pump is operated by the windshield wiper switch, can you use a three speed switch with electric washers and a 2spd wiper motor ?

[jbaha]

Don't know if it helps but mine is a 3 speed with electric washer...!

[Skdmark]

AFAIK in e-bodies 2psd wipers are manual washer pump and variable speed wipers are electric washer pump.
The option code J25 was for the variable speed wiper and the electric washer.

Here's a post from JS off of moparts covering the wiring on the switches and the harness.
https://board.moparts.org/ubbthreads/ubbthreads.php/topics/2580814/1970-cuda-2-speed-wiper-switch-wiring.html

From what JS posted it sounds like if you install a variable speed switch with a 2 speed motor, might need to swap A and F1 wires.
Maybe ask him directly to confirm.

[JS29]

From what JS posted it sounds like if you install a variable speed switch with a 2 speed motor, might need to swap A and F1 wires.
Maybe ask him directly to confirm.

Is there a burning bridge emoji?   

[FE5CUDA]

70-74 "ALL" black wiper motors with the resistor had a 2 speed wiper switch and "ALL" had foot pumps.  70-71 with the cad plated flush mounted motors "ALL" had variable speed switches and "ALL" had an electric washer pump.

Some time after 71, the variable speed switch went away and the 3 speed switch was used in it's place on "ALL" cad plated flush mounted motors.  The variable (70-71) or 3 speed (72-74) switch will not work with the black motor with the resistor.

FYI, after 71, the variable speed switch went away, the two speed switch was re-designed to a smaller diameter as well as the introduction of the 3 speed switch to make it much easier to install the switch panel on the assembly line.

[anlauto]

IF a person wanted to use the black two speed wiper motor with the resistor, but eliminate the foot pump washer and go with an electric washer pump, is there a FACTORY switch that will work and operate both the two speed wipers and electric pump ?

[moparroy]

Interesting - have wondered about this for my '74 Cuda 360 project
So fender tag shows J25 - it came with 3 speed wiper motor and 3 speed control with electric washer switch - but also came with manual foot pump installed and hoses for foot pump - but no reservoir came with the car... The car was a half basket case when I got it - ie significant stage of disassembly.
The wiper motor is not original - in going over the wiring and cleaning up the motor, its pretty clear that motor was replaced at some point based on the wire crimp connectors and mismatched colors on the motor wires - right at the motor...
Why would someone install a foot pump if that was not original? Car was a bracket racing toy as far as I can tell - X-heads, headers, in line shifter, holes cut in the trunk floor for possible fuel cell, trans temp gauge, trans been worked on (and screwed up).... Maybe they put the foot pump in as a low cost way to pass a safety when the electrical pump failed? but not that those pumps are expensive...
I was planning to install but not connect the foot pump and make it work on electric pump - but if the foot pump was not original I would just plug the firewall hole... Per my other post even if the foot pump was original I would not connect it - I am concerned about washer fluid leakage inside the car...

[FE5CUDA]

IF a person wanted to use the black two speed wiper motor with the resistor, but eliminate the foot pump washer and go with an electric washer pump, is there a FACTORY switch that will work and operate both the two speed wipers and electric pump ?

IF, FACTORY, the answer is NO.

[anlauto]

So if you plug in a dash harness to a three speed switch, but only have a two speed wiper motor in the engine compartment, what would happen ? Would the wipers work at all ? Would the washer pump work ?

JS29 always points out cars that have rally gauges, but only two speed wipers, (which was never factory) and there seems to be a lot of them, I'm just wondering what those people do for a switch, or are they swapping in the two speed switch as well ?

[Burdar]

Why would someone install a foot pump if that was not original?     Maybe they put the foot pump in as a low cost way to pass a safety when the electrical pump failed? 

This seams like the most likely answer.

My car has electric washers but the bolts for the foot pump are in the firewall.  My guess is that ALL cars came with the two attaching bolts on the firewall for the manual foot pump even if you had electric washers.

[FE5CUDA]

So if you plug in a dash harness to a three speed switch, but only have a two speed wiper motor in the engine compartment, what would happen ? Would the wipers work at all ? Would the washer pump work ?

JS29 always points out cars that have rally gauges, but only two speed wipers, (which was never factory) and there seems to be a lot of them, I'm just wondering what those people do for a switch, or are they swapping in the two speed switch as well ?

It could work ONLY on the low speed and park. If you went passed to medium, the switch resistance would be fighting the two speed black motor resistor. The wipers would take off into warp speed and would not be able to park. Only way to stop would be turning the ignition switch off.

As stated before, a 2 speed switch will NOT work with a 2-speed variable or 3 speed switch.

[anlauto]

Why would someone install a foot pump if that was not original?     Maybe they put the foot pump in as a low cost way to pass a safety when the electrical pump failed? 

This seams like the most likely answer.

My car has electric washers but the bolts for the foot pump are in the firewall. My guess is that ALL cars came with the two attaching bolts on the firewall for the manual foot pump even if you had electric washers.

YES...I come across those two screws all the time.

[moparroy]

In mine it was not just the screws - the actual foot pump and lines were there too. Makes sense the screws would be there - I would think they have to plug the holes with something to keep the firewall integrity