How do you test for a vacuum leak ?

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03-23-2017, 09:24 AM

Mustang121

Thread Starter

Join Date: Mar 2017

Location: California

Posts: 6

How do you test for a vacuum leak ?

Hello All,

can anybody help help me out with how you test for a vacuum leak on a 2005 Ford Mustang v6. I'm having rough idle and want to see if it's the vaccum lines. Any help would be great.

thanks

03-23-2017, 03:51 PM

movielover40

4th Gear Member

Join Date: Aug 2015

Location: MI

Posts: 1,545

I used to use soapy water on them and look for some bubbling.

Haven't had the need to do it in years though.

03-23-2017, 06:34 PM

Siber Express

3rd Gear Member

Join Date: Mar 2010

Location: Clinton, Tennessee

Posts: 761

Starting Fluid, spray on the lines if the idle changes look for cracks or bad hoses where you sprayed.

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