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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

vacuum gauge???

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Old 04-03-2009, 11:53 AM
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Default vacuum gauge???
what is a vacuum gauge gonna do?? i bought a set of gauges and one of them is a vacuum/30lbs boost gauge. i just dont know how there are 2 in 1 and what the vacuum one does
 
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Old 04-03-2009, 11:56 AM
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yer saying the gage reads up to 30psi and also into vaccum
 
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Old 04-03-2009, 12:01 PM
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You bought the wrong guage - that is for gassers
 
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Old 04-03-2009, 12:10 PM
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yup you need a boost only gauge and one that reads to 60psi as well, send it back.
 
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  #5  
Old 04-03-2009, 02:22 PM
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ya im gonna have too unfortunately.. now its gonna take longer and i'll have to wait 2 weeks for shipping
 
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Old 04-03-2009, 05:59 PM
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it will still work, mines a gasser gauge, it just wont read vac it stays at 0 till it builds
 
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Old 04-04-2009, 06:19 PM
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Originally Posted by oglejust
it will still work, mines a gasser gauge, it just wont read vac it stays at 0 till it builds
if you back spin or bark the turbo it will read vacuum.
 
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Old 04-04-2009, 07:22 PM
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you dont want vacuum that means bad things are happening
 
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