How many psi does the rear window washer pump generate? I was interested to find out because mine seems weak. Thanks for the imput.

 

I have no idea (well, maybe three to five psi) but why don't you put your aftermarket boost gauge on it and see

EDIT: Naw. I guess again and say five to ten.

 

ummm.. and have the gauge unit fill up with washer fluid??

 

The output pressure is pretty irrelevant. All that matters is whether water is squirted onto the glass in sufficient quantities. It did when it was new (and mine still does 15 years later) so if yours doesn't then you probably have a blockage somewhere. Check the nozzles with a pin (most likely cause) and check the lines too.

 

hes probably wondering about water injection intot he intake. or at least thats what it sounds liek to me.