Here is another leaker for a 2000 Blazer. My leak must be in the line somewhere before it enter the tail gate and in the body. When the pump runs it leaks out of the drain ports in the rear quarter panel on the underside on both sides. I told my son to live with it, but wanted to check to see how complicated it would be to tear the interior apart to find the broken line and splice it.

Thanks in advance. Mark

 

Basically have to remove the front and rear seats, then the carpet and follow the line.

 

My 98 bravada was passing fluid the same way but it was inside the tailgate....somehow it leaked down and exited behind the right rear wheel. In that vehicle the hose was in the ceiling but as for yours I do not know.

 

Mine leaked right behind the rear tire too. It turned out it was leakingin the tailgate and running out and down so before you rip your truck apart check the connection inside the tailgate right at the top where it connects to the hose going through to the wiper.

 

My hose was in the ceiling and also leaked at the plastic part of the inside roof where the dome light is. I took down the plastic trim, found the hose and sealed it up with some glue and electrical tape, problem solved. I barely use the rear fluid since my rear wiper motor is broken. My leak occured at the connection as well, just as a reference.