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Old 05-30-2015, 12:41 PM   #1
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Default pcv valve

hi guys ! it,* me again ! i have a 97 buick lesabre 3800 v6 and it shows the pcv valve is under the map sensor so how does it get the vacuum without a vacuum hose ? all i see is a map sensor and a spring ! all the pcv valves i seen had a hose going to it ! thanks guys for your time ! also would it be ok to use a 180 dregree thermostat ? i don,t know what,* in it now, i just got the car not too long ago but so far the thermostat seems to be working ok ! you have a good day and thanks again !
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Old 05-30-2015, 03:06 PM   #2
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Many typical PCV systems do use a vacuum hose when venting from crankcases.
The Buicks PCV is part of the intake manifold, quite a bit different for sure.
Diagram: VIN K from my Park Ave for removal, is yours the same?
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Old 05-30-2015, 03:20 PM   #3
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Looks like it'* buried in the end of the upper intake plenum - sealed in by the MAP. Can anyone explain how this works..?

I'd guess it doesn't need to be in a loop, with a hose on one end, since it'* inside a vacuum - like, up in space man.
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Old 06-02-2015, 12:34 AM   #4
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I've wondered how these worked too. On the 3100 in the Century, it was in the valve cover and had the vacuum hose running to it.
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Old 06-02-2015, 01:51 PM   #5
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yep, is like yours, soft ride ! if that,* your car then it,* a sharp looking ride !
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