HomeDepot, Discount Auto Parts
Total = cap,connector,valve stem approx $15
Tbolts were $6 or so...

 

nice writeup

 

awesome write up, thanks man.

 

umm kinda of a noob question but i read something about capping the pcv valve? how do i go about doing that and is it necessary

 

besides the throttle body seals, where are some other sources of leaks?

 

awesome write up.

 

Good writeup I just built this today.. Going to preform the test soon.

 

Awesome write up! I thought the boost leak tester was more than a coupler with endcap with valvestem on the end. Now I can make my own and test it once it get a bit warmer.

 

im so confused as to what i did wrong. but i have a boost leak tester and 125psi compressor but i couldnt get my turbo to start spinning. i guess im using my compressor wrong somehow but i set it to 25psi and it said it was pushing out 25psi on the out-regulator-gauge yet my turbo didnt spin at all and my boost gauge read nothing. i got scared and put my intake and everything back on and took it for a drive and everything seemed fine.

 

ok, I know this is a noob question but the car need to be turned on for this? Or just on to read the gauges but not the engine?

 

No the car should not be on.. The point of this test is to fill the engine with pressure, simulating what a turbo would do when your running the car. You need the car off to hear leaks.

 

I/C pipe conections, BOV if its weak, Throttle body gasket, I/C itself if something has puctured it such as a stone hitting it, Any vacuum hose, Intake manifold. Hope that helps

 

Thanks for the write up - I will use this to test mine - I bought it used, never hurts to make sure the car is running in tip-top shape.

 

i tried the same thing today and i found that there is a hissing noise followed by a complete loss of pressure (i can only assume it is a giant leak), right at the throttle body. does anyone know if this is definitely indicative of a throttle body seal leak? any input would be great because my car has been hesitating under boost and im not sure if its the clutch or a leak..

 

IsOs the O.D. of the stock turbo (2005) inlet 2"?