Boost Guage

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May 11, 2008 | 10:46 AM

Greg88

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Joined: Mar 2007

Posts: 365

Boost Guage

Hey guys,

My boost guage is reading 8lbs on the vacuum side when the car is off? I dont think this is normal? Anyone have any suggestions? The guage is fairly new. Let me know,

Thanks, Greg

May 11, 2008 | 12:16 PM

Rodrigues

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Joined: Mar 2002

Posts: 1,842

From: Bloomfield Hills MI

I'm pretty sure your gauge is bad

May 12, 2008 | 07:48 AM

Greg88

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Joined: Mar 2007

Posts: 365

any other thoughts, i have it hooked into my brake booster line that goes from the brake booster to the intake. Is this maybe a problem?

May 12, 2008 | 09:58 AM

jsetzer

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Joined: Feb 2004

Posts: 2,182

From: Moore OK

Hmm, they all seem to vary a bit, but 8 is a lot.

What elevation are you at? Atmospheric will throw them off a little bit, but 8vac is a lot.

May 12, 2008 | 11:09 AM

Greg88

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Joined: Mar 2007

Posts: 365

I think its between 500-1000 feet above sea level. My mechanic told me that the guage should be at 0 when the car is turned off.

May 12, 2008 | 04:43 PM

boosted-lt1

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Joined: Jan 2001

Posts: 657

From: Farmington Hills, MI

Zero is atmospheric pressure. This is what you should see with engine off.

What does it say when idling?

I don't think many people run off of the brake booster. Try moving it to the intake.

-Scott.