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How To Find A Vacuum Leak - EricTheCarGuy

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How To Find A Vacuum Leak - EricTheCarGuy

6,115,977 views October 29, 2010 5:56

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In brief

You’ll learn how to locate vacuum leaks in your engine—whether at the engine bay or hidden under the dash—and test for them safely using a spray method. EricTheCarGuy’s approach is practical, covering common spots like HVAC systems and even vacuum-operated door locks, with precautions for working on a hot engine.

Questions & answers

Can I use water instead of brake cleaner to test for leaks?

Yes, a spray bottle with water works but may be less effective than brake cleaner.

Where are common places for vacuum leaks besides the engine?

HVAC systems and vacuum-operated components like door locks can also leak.

Description from the creator

Vacuum leaks are one of the biggest causes of engine performance problems. This video is pretty straight forward in it's approach to finding a vacuum leak. On thing I might mention is that not all vacuum leaks are at the engine. Some HVAC systems run on engine vacuum and can cause a leak under the dash in some cases. I've even seen vacuum operated door locks. Just be sure to be careful spraying flammable stuff on a hot engine, you don't want to take one problem and make it a whole lot worse. You can also use a spray bottle with water to do this same test. It may not be as effective, but you don't have to worry about spraying a flammable substance on a hot engine.

For more information on diagnosing engine performance issues, check out this article I wrote.

ericthecarguy.com/faq/solving-automotive-perfor…

The best place for answers to your automotive questions: ericthecarguy.com

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Stay Dirty

ETCG

Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.

About this tutorial

EricTheCarGuy published this 5:56 video tutorial on October 29, 2010. It has been watched 6,115,977 times on YouTube.

Duration
5:56
Published
October 29, 2010
Views
6,115,977
Likes
37,314

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