Homemade Vacuum Leak Tester - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT

Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-29-2014, 09:09 AM   #1
Registered Member
Voltwings's Avatar
Join Date: May 2014
Location: Houston
Region: Texas
Posts: 3,448
Homemade Vacuum Leak Tester

So i recently decided to go back to my stock GT manifold and intake from my Cobrajet set up, and was plagued with a phantom vacuum leak that was driving me crazy, and i finally broke down and made this nifty little device.

Basically you just burn a small cotton rag in the paint can.
Adjust air compressor to ~3-5 psi
The fitting is 5/8" so it can either be routed to the coupler for the intake i made, or any of the PCV fittings to test various parts of the system.
Apply pressure to the valve stem and smoke will blow out where your leak is.

Turns out i lost an injector O-ring during the swap -_- something that seems so trivial now, but oh well, at least its back up and running.

Also, this is why it's VERY important to have your datalogger hooked up after making major changes to the vehicle, and making sure it is running right after said changes. Hopefully this nifty little idea can help someone else in the future and save them some time and effort, i was damn near pulling my hair out trying to find this leak.
Attached Thumbnails
Click image for larger version

Name:	IMG_9699-a.jpg
Views:	60
Size:	128.0 KB
ID:	164663   Click image for larger version

Name:	IMG_8263-a.jpg
Views:	58
Size:	132.0 KB
ID:	164664  

Voltwings is offline   Reply With Quote
Sponsored Links

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 2011-2014 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Homemade Vacuum Leak Tester Voltwings 2011-2014 V6 Mustang 2 08-29-2014 10:10 AM
E85 Tester Question Big Q 2011-2014 Mustang GT 1 07-01-2014 02:18 AM
low budget fuel pressure tester Jar72 1979-1995 Mustang GT 0 02-02-2014 03:39 PM
Snap on dianostic tester tbonestang 1979-1995 Mustang GT 4 07-14-2012 10:14 AM
Erratic Idle problem solved-Intake manifold vacuum leak Mercedez L. 1979-1995 Mustang GT 7 07-30-2010 10:08 AM

» Like Us On Facebook

01:57 AM

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.