the vacuum on my boost gauge has been dipping lower then normal i only see it when letting off the gas while its still in gear while i'm braking and the car feels then it has a little bit of a slower spool up, but boost still feels strong?? does this mean i have a vacuum leak somewhere and if so how should i track it down, spray some soapy water over the vac lines??

 

boost leak test. Check your vacuum lines under the manifold those always pop off

 

^^ hey how do i get to the line under the mani from under the car?? sry for the noob question lol

 

bump!

 

You can go either way from up top or from down below depending of what lines are you looking for. Choose your destiny!

 

so how should i check them, spray soapy water all over the lines?

if i do a boost leak test will i hear a vacuum leak?

thanks guys!!

 

bump, searched cant find an exact answer! does this seem like a vacuum leak

 

Do a boost leak test and find out, its really hard to e-diagnose cars. Zip tie all of your vac lines also.

 

just feel around the intake manifold above and under it.

Do a boost leak test and listen for hissing and spray soapy water on suspicious areas.

 

what kind of pump do i need for keeping the pressure at 25psi and how much do they go for??