Hello All,

Just moved up from my '01 Tahoe to a very nice '14 Suburban Z71. I've been going trough checking fluid levels and the one thing I can't find is the location for the tank for the rear window washer. I can hear the pump when I activate the back window wash but I don't get any fluid.

Thanks,

EC

 

maybe the front and back use the same tank? Did you check your owner's manual?

 

I did and it makes no mention of a rear tank. Sec 10-22 speaks of how and what to fill with and makes reference to 10-6 which is the under-hood location map for fluid tanks. M is the windshield tank with no mention of dual purpose for the rear window and references 10-22 for filling instructions... A very GM infinite loop that leaves me searching for an answer here before I start trying to trace the hose to a pump/tank.

 

I'll bet one tank services front & back. When you run the back pump, where do you here it? Our '20 Tahoe has only one tank for both

 

It sound like it is pumping from the back of the truck.

 

so maybe the hose for rear is obstructed, or the nozzle, or the pump is worn out

 

one tank/two pumps

 

My 2015 suburban uses one tank for both front and rear