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Fixing messed up wiper jet systems, grassroots style

Problem: Seal that holds wiper jet motor in tank needs to be replaced, replacement not available

Solution: A big, fat, mighty glob of RTV (silicon gasket maker) around the part of the pump that goes into the tank. Don’t be afraid to use too much.

Problem: Spiderweb cracks in wiper jet tank.

Solution: Liberal application of electrical tape. Will hold well for years and years if the surface is pressed properly and the tape is applied with very low tension.

Problem: Clips that hold wiper jet hose in place have disintegrated

Solution: UV-resistant zip ties. If you plan to remove them and you want to do so easily, don’t do them up too tightly.

Problem: Gunky water lines / wonky jets, caused by mineral build-up.

Solution: Bleed the system through with vinegar (you should pull out the wiper jet system and reassemble it so the jets won’t hit the car) and let the vinegar sit for a few hours. Then bleed out again with distilled water and put the system back in place. Don’t use tap water in the future.

Comments

GameboyRMH:

I see you can't edit tech tips. D'oh! You must *prep* the surface of the wiper jet tank, not *press* it. Also *black* silicone gasket maker is what is casually referred to as RTV. Also if you can't aim your wiper jets away from the car, a good alternative to prevent any paint damage is to leave a sprinkler running over the car or have someone hose it down. Vinegar normally won't do anything unless you rub it in or let it sit, but it's best not to get it on your paint.
May 20, 2008 12:48 p.m.

Tyler H:

Dont forget the old standby: A sewing needle. A sewing needle can be inserted in the jet to clear it and aim it. The jets are typically a ball and cup design and can be aimed by sticking a needle into the exit hole.
May 25, 2008 2:35 p.m.

coll9947:

Tyler H: AWESOME tip, thank you so much, I never thought I could do anything about my bad nozzles besides replacement.
Jun 9, 2011 12:50 p.m.