Rear windshield washer just quit.

[WoodyJan]

Front windshield washer still works. Is their a rear reservoir? I can't find it so I assume there is only one. Hose on back does not seem to be plugged. Any suggestions. ? 2003 Tahoe

 

[Doubeleive]

check the two plastic lines that run up from the reservoir in front by the battery they make a corner/bend right there and they get brittle and crack, if one is broken you wont get any fluid, also there is 2 motors on the reservoir one for the front and one for the back, one may be out, you can check by just poking your head underneath the wheel well plastic and have some one push the button inside and just listen to see if you can hear it running when they press the button inside, if the plastic line is cracked you can patch it easy with some rubber line and a couple clamps it doesn't hold a lot of pressure at all, if you need to replace the motor you can do it from underneath its not super easy but it can be done easier than pulling the whole thing out.

 

[M1Gunner]

Do you hear the pump for the rear activate? And front and rear pumps share the same reservoir.

Edit: yeah, what Doube said... lol

 

[RGA1215]

I had the same thing happen to me. The motor was still good and everything, but the line split in two places. It first split by the battery, and then the line just came undone under the car by the back driver side wheel. Ever since I fixed them, the rear washer has been working good.

 

[D is for DENALI]

Changed both my motors, 03 xl denali, rear wouldn't work and the passenger front only sorta pissed on the windshield as opposed to spraying...

With motors replaced, the took off the splitter connection( it's right along the driver side hood line) and sprayed both the front and rear and made sure fluid came flying out.. it did.. but after blowing air thru the lines, I found a broken spot under the truck leading to the rear, so I would hit the button and it would spray fluid on the ground...lol.. replaced broken areas with rubber line and clamps, and even electric tape(cause im over the top lol)

Take the time to check the lines, it might be just that instead of automatically thinking its the motors(which are right next to each other at the bottom of the reservoir and can be replaced in about 30 minutes, bad part is you need to take out the battery/tray and do some uncomfortable bending on the wheel well plastic to properly get to the motors..)

 

[Matahoe]

We bought a GMC Envoy a while back. The previous owner put plain water in the washer tank. Long story short...all the water froze in the lines and burst the tailgate check valve and rear wiper lines. It was a wet mess after unthawing everything under the tailgate trim.

 

[Kelsda]

Front windshield washer still works. Is their a rear reservoir? I can't find it so I assume there is only one. Hose on back does not seem to be plugged. Any suggestions. ? 2003 Tahoe

2008 tahoe washer fluid in rear stops when getting low so front still works a little longer