I have a 2006 mustang gt with a kenne bell supercharger. While autocrossing the washer fluid spits out all over the hood. Never enough to hit the windshield. I asked Kenne bell about it and they thought I had the wrong cap on the fluid reservoir. I don't.
It only happens when under some good boost while auto crossing. If we goose it while on the highway nothing happens.
What the heck? I can't see how this would happen.
Anyone guesses? Or explanations?
How much fluid are we talking about? And is it possible it's related to engine bay heat and not boost?
Does the washer fluid reservoir operate on engine vacuum?
Point the jets at your intake. Cooling is now a feature and not a bug!
Interesting. I've always had issues with my 05 dribbling a little on the hood, but I've never tied it to a specific driving pattern. Also not boosted though.
Is there a vent hole in the lid?
Is there a check valve in the line to the nozzles?
Have you accidentally hooked a washer hose to a vacuum source?
G force related rather than specifically tied to boost?
Definitely G force related, on a Mustang that's how you know the tires are warm. Smooth driving gets a dribble down the hood, a tight chicane, can get a squirt to the windshield.
If just means your driving hard enough.
Add a baffle in the tank if you don't like it, or save some weight and drain it.
In reply to rslifkin :
Not a lot of fluid, but enough to notice it on the hood for sure. It doesn't squirt out, but it is from both sides for sure.
In reply to Streetwiseguy :
Yes there is a vent hole. Kenne Bell thought that was the problem.
I don't know about the check valve and it isn't hooked to a vacuum source.
I never thought about the g force. Maybe that's why I never see it when stepping on the boost whilst on the highway. I just do that to make sure my boost gauge is working....
You should be able to solve the problem by installing a 1 PSI check valve inline with the squirters.
That'll keep the fluid from dribbling out, and the washer pump can easily overcome the 1 PSI cracking pressure of the valve.
STM317 said:G force related rather than specifically tied to boost?
That's what I was thinking. My Samurai leaks wiper fluid out of the nozzles when driving up steep inclines, because the wiper tank is so much higher than the nozzles at that angle.
^Will also have to look into the check-valve solution.
I ended up with an extreme version of the check valve solution on the Jeep. Stock, it would leak a little fluid if tilted to the right on a hill, as it put the tank above the nozzles.
Once I added the heated water fluid setup (heat exchanger to coolant) and a booster pump to get more spray pressure through the restriction of the heat exchanger, it would squirt some fluid as it warmed up and also a few seconds after a spray as the new (cold) fluid in the heat exchanger expanded. Mostly because the booster pump doesn't allow backflow like the stock pump.
The fix ended up being a check valve (2 psi cracking pressure) before the nozzles as well as a solenoid valve (normally open, closed when pumps are powered) that dumps any pressure between the boost pump and the check valve back to the inlet side of the boost pump (where it can freely flow back to the tank through the stock pump as needed).
The only downside to the setup is how fast it goes through fluid (being that it's pushing a little over 60 psi to the nozzles, so it moves a lot of fluid very quickly).
My cl600 started doing this after a tune. Always figured it was related to g force.
In reply to thewheelman :
Thanks so much! I'll check this out from Grainger and get back to you.
I knew you guys would have the clue that I don't!
It's just too much power and your mustang is scared. It's peeing itself.
Volvos have used a check valve in the tee for many years, if you want to junkyard the deal. Anything 850 or newer.
In reply to Curtis :
I'm ready to pee myself for sure!
I just had a ride along and when we were finished they told me they had held their breath the whole time.
Maybe they peed?
In reply to thedoc :
My wife when laughing really hard.
At 56 years of age it’s not really cute any more.
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