PCV Valve vs Breather
With the sealing fuel caps on todays cars isn't the evap system needed in order to allow some air into the tank? If you suddenly run out of fuel with 1/2 a tank try unscrewing the fuel cap as you might vacuum lock the fuel system as the fuel level goes down.
Originally Posted by HBHRacing
The fact that you can put on a breather and say that it "seems" fine doesn't mean anything. Jus because you don't feel teh changes doesn't make it less real. Your car now has a mild vacuum leak. The fuel addaptives will correct for it but that gives you less room for error should another lean condition pop up.
TECH Enthusiast
Joined: May 2005
Posts: 669
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From: Charlotte, NC
Originally Posted by crAzy95Z28
i have a breather on my passenger side valvle cover. shold i put the tube back on?
It's up to you. Do you want your system to work 100% correctly? If it was me, I would.
