Vacuum question
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Junior Member
Joined: Feb 2006
Posts: 77
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From: kentucky
Car: 91 rs
Engine: 3.1 v6
Transmission: 700r4
Vacuum question
Can i use a vacuum guage to prove i have no vacuum leaks.
I have searched and have found no exact steps.
Any help greatly appreciated !!!
I have searched and have found no exact steps.
Any help greatly appreciated !!!
Supreme Member
Joined: Nov 2002
Posts: 1,832
Likes: 1
From: Castaic, CA
Car: 1988 Camaro RS
Engine: 2.8L of Raw POWER!!!
Transmission: Stick Shift
Axle/Gears: 3.42's
Re: Vacuum question
technically yes, but it's not very acurrate.
You should have about 18" of vacuum with an idle at about 750 RPM. if both are true, then I would assume no vacuum leaks.
The best way to tell though is to spray carb cleaner everywhere that might leak, if the idle goes up, then you have one.
You should have about 18" of vacuum with an idle at about 750 RPM. if both are true, then I would assume no vacuum leaks.
The best way to tell though is to spray carb cleaner everywhere that might leak, if the idle goes up, then you have one.
Member
Joined: Jan 2006
Posts: 133
Likes: 0
From: Montreal, Canada
Car: 89 Camaro RS, 99 Sunfire GT
Engine: 2.8L, 2.4L
Transmission: 700R4
Axle/Gears: 3.42
Re: Vacuum question
passing over the lines with a propane bottle works too, if theres a leak, the propane will make the RPMs go up
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Aug 16, 2015 05:45 PM