SPONSORED LINKS

While doing a boost leak test I noticed the.

Tiny
ANONYMOUS
  • MEMBER
  • 2004 VOLKSWAGEN JETTA
  • 33 MILES
While doing a boost leak test I noticed the system would not pressurize past 5 psi. Does this mean that my head gasket is bad and/or leaking somewhere? And the only way to find out would be doing a cylinder leak down test?
Sunday, December 2nd, 2012 AT 5:51 PM

1 Reply

Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
If your intake hose is still attached to the throttle body, you need to disconnect it and plug it. Testing with the throttle attached, will allow boost to enter the
manifold and find its way to a cylinder via an open intake valve, or through the intake & out the exhaust if that cylinder happens to be on valve overlap.

Boost leak testing is usually only done between the turbo OUT and the hose that attaches to the throttle body.

Thomas
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 2nd, 2012 AT 7:54 PM

Please login or register to post a reply.

Related Cylinder Head Gasket Leak Content

VIEW MORE

Sponsored links