what is a boost leak?

[NickDromez]

ok, i did a little searching but maybe the topic is too simple. what exactly is a boost leak what are symptoms of boost leak and how do you perform a boost leak test? thanks in advance.

 

lol just as it sounds, there is boost pressure lost at some point in the system. you should be checking your boost/vacuum lines regularly. any old or cracked hose can be an easy point for boost to be lost. any cuts/tears in intake piping ect.

you can either buy a boost leak tester or make one. this is on a scooby, but same principal

click

 

[NickDromez]

haha well yea i kinda guessed that a boost leak is exactly what it sounds like. but would a boost leak happen only after the turbo since thats where the boost is?

 

[belize1334]

yes

 

[cheekychimp]

But you should also ensure that there are no 'leaks' in the intake system prior to the turbo if you are using the MAF/MAS. Any unmetered air entering the system post MAF/MAS could mess up your A/F ratio and cause you to run lean.