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Idle VAC in/hg

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Old Oct 27, 2010, 06:19 PM
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Idle VAC in/hg

Hey, what are you guys reading at idle in vac? Isnt it suppost to be like 20? i just got some new gauges and mine at idle is sitting at about 17-18 or so.. is this a normal reading, or do i have a Vac leak maybe?? What are you other guys readin?
-Tony
Old Oct 28, 2010, 07:38 AM
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mine reads......22 i think, maybe 21. You should do a boost leak check if you even suspect you have one....and even if you don't, because lets face it, easy problem to fix and it causes all sorts of crazy hard to trace problems.

The manual that senate posted has the required vacuum setting i think, that's where i saw it i think...not sure for sure though.
Old Oct 28, 2010, 07:50 AM
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Originally Posted by HornstarBU
mine reads......22 i think, maybe 21. You should do a boost leak check if you even suspect you have one....and even if you don't, because lets face it, easy problem to fix and it causes all sorts of crazy hard to trace problems.

The manual that senate posted has the required vacuum setting i think, that's where i saw it i think...not sure for sure though.
Yeah i think the value is right around 22 In/Hg I need to look for some leak now lol, Boost leak test fun!
Old Oct 28, 2010, 08:55 AM
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warm up -20, idle -21 to -22
Old Oct 28, 2010, 09:00 AM
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Originally Posted by steven121
warm up -20, idle -21 to -22
Yep, looks like i have a slight leak somewhere, ill have to do a leak test!! Thanks man
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