Wiper fluid siphoning

[DirtyComanche]

So I'm having problems that when I'm extremely off camber that my wiper fluid siphons out of the reservoir.  Or maybe it's not really even siphoning, it's just running out because the nozzle is lower than the reservoir.

 

Did later pumps have anything to prevent this?  Or is there valves that could be installed that will prevent it?  Or is this problem unique to me because I am using a product in a manner it was never intended?

 

It's annoying because I lost all of my wiper fluid the last time I was out, and it would have been nice to have some.

[cruiser54]

Cherokees had a check valve for the rear washer. You could try one of those. 

[DirtyComanche]

2 hours ago, cruiser54 said:

Cherokees had a check valve for the rear washer. You could try one of those. 

Where was it installed?  By the reservoir?

 

I see early Cherokees use the same pump front and rear, later ones have two different part numbers, so perhaps integrated in the pump?

[DirtyComanche]

My XJ doesn't have one, that's all.

[cruiser54]

It's in the liftgate. 

[DirtyComanche]

4 hours ago, cruiser54 said:

It's in the liftgate. 

Hmm.

 

I'll have to open it up.  I'm guessing it's stuck, or not there.  This is an XJ problem I'm having, of course I asked here since the tech knowledge is way better than any of the other places.  It dumped out the front once and the rear twice now, so I'd like to solve it from doing from either end.

 

Guess I'll add them to the list of things to snag from the boneyard too.

 

Thanks Cruiser!