Test your Navigator’s Wiper Motor Fuse If the fuse is good, both ends will light up a test light with the key on.īefore replacing the wiper motor, check your Navigator’s fuse box and determine whether or not the fuse has blown. But that can cost money and a lot of time. It may be tempting to skip looking at the wiring harness and jump straight to replacing the washer pump. If you didn’t hear your Lincoln Navigator’s windshield washer motor, it is likely that no fluid has come out because it has gone bad. The number one reason a windshield washer pump goes bad is running with no fluid or when it’s clogged/frozen. The following two sections will help you troubleshoot the issue and are divided by whether or not you heard your Lincoln Navigator’s squirter motor running. If you don’t hear the motor turning, you’ll need to determine whether it failed or has a wiring issue.If you hear the motor buzzing or whining, you’ll need to determine why the fluid isn’t making its way to the squirters.Next, hit the windshield washer button.Turn the ignition to run, but don’t start your Navigator.The first thing you need to do to fix the problem is to listen to your Navigator’s washer pump motor. As long as there’s fluid in it, let’s proceed with identifying why your vehicle’s washer pump isn’t functioning. The number one reason why washer fluid will not come out is no fluid, followed by a failed washer pump. No Fluid, Clogged Nozzles, Clogged Line, Broken Line, Frozenīad Motor, Blown Fuse, Bad Washer Switch, Wiring Harness Failureįirst, check your Navigator’s washer fluid reservoir. Lincoln Navigator Washer Pump Not Working Quick Diagnosis Table Did You Hear the Washer Motor? This article aims to give quick practical advice to help you get your wiper/washer pumping fast. Still frustrated and the back squirt nozzle does not spray water.If your Lincoln Navigator has washer fluid that is not coming out, it is caused by a few common issues. Must be a wiring issue, although I cannot find the wire return from the rear wiper motor that will operates the pump in reverse to squirt water to the back washer nozzle. I have now replaced both the front wiper motor and rear wiper motor twice and I still have the same problem. It appears there are relays in both the front windshield wiper motor and rear wiper motor that perform the magic of reversing the voltage at the actual washer pump. I also replaced the wiper switch on the steering column. I have replaced the washer pump with no change to the symptom. Reverse the power connection and fluid goes the other way to the other window. I proved this using a 12VDC supply connected to the washer pump. When I operate the washer on the rear, the pump does not operate and I cannot hear it.Ĭonnect 12 VDC to the pump one way and it pumps fluid to the front, reverse the 12 VDC power at the pump, the pump runs backwards and pumps fluid to the rear washer. When I operate the washer on the front, the pump operates and I can hear it while spraying water. There is only 1 pump on the washer reservoir inside the front passenger side fender.
I got into the Ford wiring and am still frustrated.Ģ012 Escape, front washer works, rear washer does not. Obviously a wiring problem since I have changed every component in the system. Fuses are good for both front and rear wipers. I have changed the pump, the turn signal switch that activates the front/rear pump and the rear wiper. I can blow air through the line and it bubbles in the washer tank. It does not operate, there is no voltage present and no clogs in the water line. My problem is the pump operates to the front windshield, however, does not operate the rear washer. When I put the pump back in, I can operate both washers supplying external 12 Volts and reversing the connection. When I reverse the voltage (and therefore reverse pump direction) it pumps water out the other discharge port. When I connect 12 Volts to it, pumps water out one discharge port. I have removed the pump from inside the fender well. Rear washer - reverse the voltage to the pump, reversing pump direction to pump water to the rear washer nozzle. There are 2 hoses coming out of the pump, one to the front washers, the other to the back washers.įront washer - 12 Volt powers the pump to pump water to front washer. My symptom, front windshield washer works, rear one does not.įord uses a common pump for both front and rear washers.
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