Windshield Washer Pump not working / intermittently

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Mar 29, 2019 | 07:31 PM

afonda

Thread Starter

Laughing Gas

Joined: Apr 2007

Posts: 1,028

Likes: 3

From: Broad Run, Va

Windshield Washer Pump not working / intermittently

Hey guys... so the windshield washer pump is not working now and then... I pulled the washer fluid reservoir and pulled the pump off. Put 12 volts to it and no nothing... no buzzing - no pumping no nothing...
Got a new pump installed on the reservoir.... nothing... So, then i pulled the clam shell off the steering wheel and started messing with the wires.. She started pumping windshield washer fluid. Go figure!!

So in order to really narrow this down, I need to find the exact wire for the windshield washer pump. Anyone know the color code of that wire? I'm guessing it's bad or coming loose in the disconnect plug...

Love my truck ... but this is a stupid problem!! No thank you Ford!!

Thanks,
Andy

Mar 29, 2019 | 10:37 PM

'88 E-350

Fleet Mechanic

Joined: Jul 2010

Posts: 1,753

Likes: 34

From: Los Angeles, Ca.

Wiggle the button around as you press it just to make sure it's not the problem. My Explorer has been wonky for years, just had to figure out how to hold it to make it work....'till it finally stopped working recently.

Mar 30, 2019 | 11:52 AM

afonda

Thread Starter

Laughing Gas

Joined: Apr 2007

Posts: 1,028

Likes: 3

From: Broad Run, Va

Just really looking for the wire color.

Mar 30, 2019 | 12:46 PM

Sous

FTE Leadership Emeritus

Joined: May 2014

Posts: 27,355

Likes: 5,951

From: Lake Hartwell, GA

I don't have a wiring diagram available, but you might be able to identify the wire color coming from the switch in the arm, especially since you have the steering column cover off and seem to know how to use a multimeter.

I believe the arm and wires coming out if the arm should go to a connector in the column area, but could be wrong. Perhaps the connection is intermittent at the joint/connector.

Mar 30, 2019 | 02:17 PM

Hussler

Postmaster

Joined: Sep 2007

Posts: 4,195

Likes: 6

From: Medford Oregon

On the 2001 diagram (multi function switch) I see the washer switch wire is LT BLU/Org and that wire goes to the GEM module. The ground portion of the switch is DK BLU but also goes to the GEM module.

Mar 31, 2019 | 09:12 AM

afonda

Thread Starter

Laughing Gas

Joined: Apr 2007

Posts: 1,028

Likes: 3

From: Broad Run, Va

Quote:

Originally Posted by Hussler

Thanks for info... that's what I was looking for.

Apr 10, 2020 | 10:24 AM

afonda

Thread Starter

Laughing Gas

Joined: Apr 2007

Posts: 1,028

Likes: 3

From: Broad Run, Va

I got a new multifunction stalk but that did not fix the problem. Must be a loose or bad wire in the wire harness. Can I get a new wire harness for that part of the truck?

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Apr 10, 2020 | 12:35 PM

Sous

FTE Leadership Emeritus

Joined: May 2014

Posts: 27,355

Likes: 5,951

From: Lake Hartwell, GA

Quote:

Originally Posted by afonda

I got a new multifunction stalk but that did not fix the problem. Must be a loose or bad wire in the wire harness. Can I get a new wire harness for that part of the truck?

I see you are still having issues with the washer pump not working. Based on your question in this linked thread I assume you are trying to track down what is going on with the wiring. Have you been able to confirm there is power at the washer pump when the multi-function switch is activated. Have you been able to confirm there is ground at the pump connector when the multi-function switch is activated?

I can work on getting you the diagrams you are in need of, but first we need to look at the basics. I am not very good at navigating through the Ford service manuals yet, but with the help of some of the FTE'rs I am getting better.