Question about 1999 Ford Explorer

3 Answers

Windshield washer Pump doesn't run, but the pump checks out good

When I try to operate either the front or rear windshield washer using the multifunction switch, the wipers operate but the pump does not run - no sound of the pump running either. When I connected 12 V directly to the pump, the pump runs. I have a Haynes manual for the vehicle, but it doesn't have a pump wiring diagram for anything past 1994. Any ideas? Is the wiring diagram for 1999 the same as 1994?

Also, the same pump is used for front and back washers. So what stops the washer fluid from spraying on the front window when I want to wash the back window and vice versa? Are there solenoid valves in each of the washer fluid lines to select where the washer fluid is delivered?

Since I don't use my fog lamps, I was thinking of using the fog lamp switch to operate the pump by re-routing the fog light power to the washer pump. Then I could turn on the wipers and clean the windows by momentarily operating the fog lamp switch. Will this work?

I really don't want to put any money into this vehicle, but I do need to have a windshield washer.

Thanks for any help

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  • 5 more comments 
  • hamelkelly Dec 20, 2008

    I have the same problem. Just started today. Any thoughts on how it gets fixed? I cannot find the fuse in the owners manual and the person who responded saying "fuse in slot number 12", was not correct according to the owners manual.

  • Anonymous Jan 09, 2009

    I have the same problem, the fuse is #13 and is a 7.5 amp I took a Volt meter (or test light) and checked at the connector. There are 2 wires, one is for the rear washer and 1 is for the front pump. I replaced the fuse, tested the 2 leads (you need to ground one side as there is no ground at the pump) got voltage at both leads and no spray so I determined that the pump is bad. Now I am trying to find out how to replace the pump. Looks like it will be the whole damn reseviour for the washer fluid and radiator overflow. I am not happy.

  • Rob McMurrer Jan 13, 2009

    I have the same problem, i replaced the pump still nothing the fuse is #12 and is a 7.5 amp I took a Volt meter and checked at the connector. There are 2 wires, one is for the rear washer and 1 is for the front pump. I replaced the fuse, tested the 2 leads got voltage at both leads and no spray. i hooked up the pump direct to the battery and it worked, as for replacing the pump it was easy

  • CaliGirl2007 Feb 07, 2009

    I have the same problem on a 2003. During last maintenance visit, the dealer said: "FRONT WASHER SQUIRT INOP REPLACE MULTIFUNCTION SWITCH $255.00" - Basically having to remove the entire steering column...
    I opted to wait and investigate alternatives.


  • Anonymous Mar 21, 2009

    have 96 ford exploer rear windshield wippers work but the pump does not dispence any fluid what so ever



  • cowboylvr38
    cowboylvr38 Aug 12, 2012

    the fuses are under the steering column to the right. the fuses are numbered on the fuse box itself it should be fuses 4 and 15

  • Jeffrey Boetto
    Jeffrey Boetto Oct 27, 2013

    The fuse box in the 1999 Ford Explorer is where you open the drivers side door, it is on the dash where the door closes. The 7.5 Fuse is there.

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There is another small relay box just below the windshield washer reservoir about 11/2" wide x about 4" long the washer pump relay is in there



Posted on Jan 21, 2009

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Reverse the hoses on the pump and use the rear window washer switch to wash windshield.

Posted on Dec 15, 2009

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Try replacing the fuse, it's probably a 7.5 amp in slot 12.

Posted on Dec 17, 2008

  • Ryan lizard
    Ryan lizard Jul 05, 2015

    Just to ad on to this, I had this problem and the fuse is what it turned out to be. I tested the fuse and it checked out so i bought a new pump and come to find out there was a small break in the fuse that the tester over looked so just replace it anyway. Some fuse breaks are hard/impossible to see.

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1 Answer

Which fuse controls front windshield wiper pump


Do the wipers work ? Fuse for wipers is same as washer pump .
Principles of Operation
The wiper motors receive inputs from the following:
  • Multi-function switch
  • Powertrain control module (PCM)
  • Ignition switch
  • Smart junction box (SJB)
The following components are integrated in the wiper motors:
  • Windshield wiper motor module
  • High/low speed relay
  • Run/park relay
  • Washer pump relay
  • Park sense (Hall-effect sensor)
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multi-function switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
  • The washer pump is inoperative
  • Circuitry
  • Washer pump
  • Multi-function switch
  • Windshield wiper motor
  • Rear window wiper motor
  • Go To Pinpoint Test I .
Does your expedition have programmable/recall memory option for seats an mirrors ?
Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
On the Expedition Limited, the power fold exterior mirror option is controlled by the DSM. Before running a self-test or retrieving codes, the power fold switch must be inactive for at least 30 seconds.
This is a complex vehicle , electronics , control modules an serial data communication networks. You mite be better off taking it to the dealer or some other repair shop . There could be DTC'S - diagnostic trouble codes stored in the SJB - body control module !
B1667 Mirror Driver Up/Down Motor Stalled Go To Pinpoint Test D . B1668 Mirror Driver Right/Left Motor Stalled Go To Pinpoint Test D . B1669 Mirror Passenger Up/Down Motor Stalled Go To Pinpoint Test D . B1670 Mirror Passenger Right/Left Motor Stalled Go To Pinpoint Test D . B1735 Mirror Driver Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1739 Mirror Driver Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B1743 Mirror Passenger Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1747 Mirror Passenger Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B2312 Mirror Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2314 Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2316 Mirror Passenger Vertical Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2318 Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2320 Mirror Driver Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2322 Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . Normal Operation During normal operation, when the front wiper wash is selected, the windshield wiper motor provides power to the washer pump through circuit CRW14 (BU/WH) and ground is provided to the washer pump through circuit CRW12 (GY/OG) and the rear wiper motor. If rear wiper wash is selected, the rear wiper motor provides power to the washer pump through circuit CRW12 (GY/OG) and ground is provided to the washer pump through circuit CRW14 (BU/WH) and the windshield wiper motor.
    Possible Causes
  • Multi-function switch
  • Open in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN), CRW20 (GY/YE), SBB49 (RD) or GD149 (BK/GY)
  • Short to ground in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN) or CRW20 (GY/YE)
  • Washer pump
  • Windshield wiper motor
  • Rear wiper motor
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Windscreen washer doesn't always work yet has fluid


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Sep 9, 2012 - Uploaded by RatchetsAnd Wrenches
You'd think the pump would run continuously, but it doesn't run at all. .... Do some cars have a separate fluid pump for front and rear washer nozzles or is it always the same pump that makes both front and rear work? Thanks ...

Windshield Washer Repair ' The Family Handyman

www.familyhandyman.com > Skills > Automotive
... or a dead pump. Here's how to diagnose and fix both problems. ... TypicalWindshield Washer. Follow the ... If you hear the pump going but don't get fluid, you probably have clogged nozzles. Lift the ... If it doesn't, replace the pump. The main ...

How to Troubleshoot a Windshield Washer Pump: 8 Steps

www.wikihow.com > ... > Auto Exterior and Interior Accessories

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My 2004 Ford Expedition will not spray windshield wiper when the button is pushed. The wipers do turn on, but no spray. Would this be caused by a fuse (the wipers do turn on) or is the motor bad?


Can you hear the washer pump running when you operate the washer switch? The washer pump is in the bottom (side) of the washer fluid reservoir. You should hear it running. If not, you can disconnect the wire connector at the pump and use a test light to check to see if there is power and ground at the connector when you operate the switch. If there is power and ground, replace the washer pump motor. If there is no power or ground, you most likely have a bad washer control switch. (You have to replace the entire Multifunction Switch)

If you can hear the pump running, check for washer fluid pouring on the ground. If this is the case, you have a broken hose between the washer pump and the jets that spray on your windshield.

Also note that there is no way possible that your problem could be CAUSED by a fuse!
For more information on this subject, please review this article: Where's The Fuse?

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2 Answers

The windshield washer fluid isnt coming out for


Yes there are two pumps located in the wiper fluid reservoir. If your in a bind, you can switch the plugs and small hose that go to them because they are both the same. The upper pump operates the back, and the lower pump operates the front. The back won't work until it gets replaced, but it beats driving backwards.

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Rear windshield washer works but front does not....Any suggestions? Washer fluid is full, fuses are good, wipers work but no fluid or sound of pump running when lever is used to spray fluid on front...


Probably need to replace the pump. Separate pumps for front and rear. Check with a test light to see if there is power to the pump. If it has power but won't work, replace the pump. If no power, you have a wiring issue. Be sure to turn the switch on and have someone push the washer button when you are checking for power. There won't be any until you push it to "wash".

Feb 01, 2010 | 2007 Toyota 4Runner

1 Answer

WINDSHIELD RESERVOIR RAPIDLY EMPTIES WHEN WASHER FLUID IS ENGAGED. THE RESERVOIR RETAINS FLUID WHEN THE PUMP IS NOT ENGAGED.


There a small diameter hoses that run the the nozzles for the front and rear windshield. More than likely, one is loose or cracked and is leaking. Do you have good spray on the windshield as you operate it? Is one weaker than the other? - If so, you definitely have a leak in a hose or nozzle. Another common leak area is around the reservoir edge or near the pump. The pump commonly resides at the bottom of the reservoir.
Hope this helps!
Rate this solution!

Jan 05, 2010 | 2005 Chrysler Town & Country

2 Answers

Windshield washer fluid not coming up at front, just at the rear


Check the hoses running to the front windshield washer nozzles. If the hoses are good check the pump to see if it is working correctly. Remove one of the hoses from the spray nozzle and see if the pump is working. If it is then the spay nozzles are stopped up. Use a needle to clean them out. They can easily get plugged with wax. If the pump is not working then either the fuse is blown or the pump is defective.

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1 Answer

Mercury villager 1994 washer pump not working


the pump motor likely is bad. get a used washer fluid reservoir at a pick n pull yourself or at car-part.com. page with * is lowest cost.

Pump and Reservoir, Windshield Washer Removal
  1. Disconnect the battery ground cable (14301).
  2. Raise and support the vehicle.
  3. Remove the RH wheel (1007).
  4. Remove the RH front fender splash shield (16103). Refer to Section 01-02 for the removal procedure.
  5. Remove the windshield washer reservoir top bolt.

  6. Disconnect the windshield washer reservoir fluid level sensor electrical connector.
  7. Disconnect the rear window washer pump electrical connector from the rear window washer pump.
  8. Disconnect the windshield washer pump electrical connector from the windshield washer pump (17664).
  9. Place a suitable drain pan under the windshield washer reservoir (17618) and drain the washer fluid.
  10. NOTE: The rear window washer hose end is color-coded, matching the connector on the rear window washer pump. Match the colors to ensure proper installation.

    Disconnect the washer hoses from the windshield washer pump and the rear window washer pump on the windshield washer reservoir.

  11. Loosen the two windshield washer reservoir side bolts.
  12. Remove the windshield washer reservoir by sliding it out of the side slots.
  13. Remove the windshield washer pump.

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To install, reverse the removal procedure. Tighten the lug nuts (1012) to 98-118 Nm (72-87 lb-ft).

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1 Answer

Wash wipe on a Focus 2000 model


I blieve it's the same pump taht runs the rear and front washers.

The windshield washer comprises the following parts:
  • Windshield washer reservoir, below the front left-hand fender
  • Washer pump, on the outside of the washer reservoir
  • Two washer nozzles on the hood/bonnet, adjustable.
---------------------------------------------------------
Windshield Washer Pump and Reservoir Removal
All vehicles
  1. Remove the windshield washer reservoir filler neck.
  1. Raise and support the vehicle. For additional information, refer to Section 100-02 .
  1. Remove the right-hand fender splash shield (wheel shown removed for clarity).
  1. Remove the washer reservoir.
    • Disconnect the electrical connectors.
    • Pull off the hoses.
  1. Remove the windshield washer pump with rubber gasket (shown with reservoir installed).
    1. Disconnect the electrical connector.
    1. Disconnect the hoses.
    1. Lift out the pump.

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2 Answers

Rear window washer works, front windshield washer does not.


Yes their are two seperate pumps. The pum is located in the driver wheel well.

Check fuses then check the pumps. Make sure you are getting voltage to both pumps.

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