2004 suburban windshield washer fluid tank leaks. how to replace reservoir?

Hello. Usually when you raise your hood look to the left or over to the passenger side against the side wall there will be a blue cap covering the washer fluid tank remove it fill the the tank and snap the lid back into place.

it locate in tthe bottom of windshield water reservoir(tank)

I don't have the complete answer right now. I just had this problem about 7 months ago. I will try to get you the answer right away, my memory is terrible. Anyway it was not the tank leaking, I came across the right person who knew what it was and saved me the hassle of replacing the tank. If I would have replaced the tank the problem would have continued. I'll try to get answer ASAP.

Here's a video that will show you exactly how to remove it.">

right where the lines connect to reservoir, has little black seals that leak. I recommend removing reservoir, empty it out, then use RTV silicone and place it between seals and reservoir. Let it dry for FULL day. than reinstall.

Rear washer may have it's own reservoir . Can you hear a pump humming when you activate the washer? Look in the under flooor compartment

I'm guessing you may have figured this out by now but I had to do it recently.

First drain the fluid from the reservoir. Then remove the car battery. Then the battery tray. I believe it was held on with about 4-5 bolts...one of which threads into a retainer clip on the reservoir itself. Now you have cleared the way to remove the reservoir. It is held in by a few bolts that are accessible from the top side and bottom both. You will have to get on your back and get to those with a ratchet. It will be obvious where these are upon inspection. And finally there is a plastic retainer that goes through the plastic inner fender into a retaining hole in the reservoir. Firmly but carefully separate it from this plastic retainer...you'll probably have to reuse it. After you do that the reservoir is free to move. Unhook the wire harnesses to the fluid pumps. Unhook the lines to the to pumps. Now just pull the reservoir out through the bottom of the car.

Done.

if i am not mistaken it uses the same reservoir as your windshield washers. if its not working it may be plugged or malfunctioning.

the windshield washer pump might be bad. It should be located somewhere on the reservoir

You must remove from it's mount and empty out any fluids that is in tank.fill the tank with water and locate where the leak is coming from. wash tank a few times and the let dry upside down. Get some sand paper (80  grit course) and sand area where leak is, clean area with a vacume or clean rag.you can buy a 2 stage epoxy that comes in an injection form and squeeze it out on a pc of paper and then get a q-tip and mix the 2 components together, fill the crack or hole generously with the q-tip, if you have to,let dry for 24 hours and mix more and put more on. let dry another 24 hours, replace tank back in it's place and you've solved your leak. (epoxy does wonders if its used properly.
Frankthetank