1989 dual pump washer fluid plumbing

[Big_Mark]

Hi Gang, I have a question about how these pumps are supposed to be plumbed into the washer fluid line that goes to the nozzles. 

Here's how the PO did it. I suspect this is not the answer.

 

 

In my truck I have two electrical connectors, one for each pump, and the low fluid connector (glad I installed the bulb :-D )and one rubber hose that passes up through the firewall into the wiper motor/mechanism compartment where it Tee's off to each nozzle.

 

What it the correct way to plumb this system?

 

I'm thinking a hose off each pump to a Tee then from the T to the firewall hose but wonder what the factory did and what others with this bottle have done. Thanks in advance

[JMO413]

It looks like you have a Cherokee washer tank there. One pump does the front the other is for the rear on a Cherokee. Comanche should only have a single pump. It should be the one with the metal bracket.

This is what mine looks like. Sorry I couldn't get a better picture.

 

[JustEmptyEveryPocket]

I installed a cherokee-in-the-fender style bottle that had two pumps like yours. My first attempt was to T the lines together, but that turned out to be a bad idea. I lost of bunch of pressure since the pump I activated just pushed fluid back into the reservoir through the other pump, leaving very little to get to the windshield. My solution was to plug one port like above and just run one pump. Then when that guy fails, I have a back-up I can swap to.

[fiatslug87]

I've always wanted to run the second pump off another switch so I could soak the windshield before the wipers go.

[Big_Mark]

Thanks all, I guess I'll just run it as it then, which is fine with me, one less trip to the local hardware store and I can just bolt it down and go 

[Big_Mark]

Yep the single pump with the blocked off hose works perfectly, on to other tasks!