Vacuum Question seeking help !

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garyizraw

Not-quite-so-new-guy
Mar 31, 2019
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I have a 1984 cutlass supreme with the 231 V6 looking to figure out where a vacuum line runs to


59556240_383149749076578_2059706658342305792_n.jpg
 

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
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The large nipple on the carb goes to the pcv valve
 

RestoMod

Not-quite-so-new-guy
Apr 7, 2019
17
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yeah this is beside that large nipple I rehooked that and installed a new Grommet
Man I don't miss those days of pre fuel injection, should go to pc v valve , m/c solenoid tps sens or old school canno t forget stepped motor
 

Clone TIE Pilot

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Aug 14, 2011
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It is not a PCV port, the large port is your bowl vent which should have s hose leading to thd EVAP control valve.

EFI may have less vacuum hoses, but more than makes up for it with a crap ton of extra wiring.
 

garyizraw

Not-quite-so-new-guy
Mar 31, 2019
13
0
1
It is not a PCV port, the large port is your bowl vent which should have s hose leading to thd EVAP control valve.

EFI may have less vacuum hoses, but more than makes up for it with a crap ton of extra wiring.

I already had hoses running to all that stuff
 

Clone TIE Pilot

Comic Book Super Hero
Aug 14, 2011
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I already had hoses running to all that stuff

Are you asking about thr big barb with no hose or about the little hose under the big barb?
 
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