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Where is the pcv valve on a 1990 buick la sadre

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Under the alternator

Posted on Oct 11, 2010

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1 Answer

Cant find the pcv valve


Should be in the back of one of the valve covers, there will be a hose that connects it to the intake manifold

Oct 27, 2012 | 1990 Buick Century

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Where would I find the pcv valve


The pcv is located in the intake manifold on the opposite side of the throttle body. If you look down the back side you will see it.

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Use 4.0 valve cover on 90 4.2l engine omit pcv valve use breather


not a good idea, engines rely on negative pressure(vacuum) for seals on crank and camshaft seals
also for emission standards, sorry

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Looking for pvc valve on3.3/6cly 1990 buick


The PVC Valve is located on the valve cover of your engine.

Jun 16, 2010 | 1990 Buick Century

1 Answer

I have a 1989 buick lesabre 3.8 and want to change


Remove PCV valve from rocker cover. Run engine at i
dle. Place thumb over open end of PCV valve to
check for vacuum. If there is no vacuum at valve, c
heck for obstruction in manifold port, hoses or PCV
valve. Repair or replace as necessary.

Turn engine off. Remove PCV valve. Shake valve and
listen for rattle of check valve inside. If a clear
rattle is not heard, replace PCV valve.

Visually inspect valve for varnish or deposits whic
h may make PCV valve operation sticky, restricted o
r
cause incomplete seating of valve. Replace if neces
sary. An engine must be sealed for the PCV system t
o
function as designed. If leakage, sludging or dilut
ion of oil is noted AND the PCV system is functioni
ng
properly, check engine for cause and repair as requ
ired to insure PCV system will continue to function
properly. An engine operating without any crankcase
ventilation can be damaged so it is important to
replace PCV valve and air cleaner breather at regul
ar intervals (at least every 30,000 miles). Check a
ll hoses
and clamps for failure or deterioration.

Mar 28, 2010 | 1989 Buick LeSabre

1 Answer

Changing PCV valve


you pcv valve should be located on the top or around the intake on top of the engine. It is covered by a little pcv valve rubber hose...it is easy to identify because it is similar to a radiator hose but a lot smaller...no where near the size of a radiator hose...but when located, the pcv valve just pulls out and to check for it being bad, shake it and it should sound like something loose inside the pcv valve (thats a good pcv valve) but what they look like, they should be a silver looking color with a small little neck on it

Nov 21, 2009 | 1990 Buick Reatta

2 Answers

Where is the pcv valve located on my 1990 mazda mx6


The PCV valve is mounted in the valve cover on the top of the engine. Hope this helped and best wishes.

Sep 27, 2009 | 1990 Mazda MX-6

1 Answer

PCV location on a 2000 buick lesabre


Open hood, top left side between the valve covers. There is a "funky" plastic housing that turns counter-clockwise (less than 1 inch of travel). then pull straight up to reveal the "missing" pcv valve.

Mar 05, 2009 | 2000 Buick LeSabre

1 Answer

Can't find the pcv valve on a 2000 Buick LeSabre.


assume this is a 3800,pcv is on pass side of plastic intake manifold,small plastic locking collar has an arrow on it ,says pcv

Mar 01, 2009 | 2000 Buick LeSabre

1 Answer

86 buick regal pcv hose is loose


3/8 fuel line is heavy enough to use,and the pcv valve is located in the valve cover.

Feb 17, 2009 | 1986 Buick Regal

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