Where is the pcv valve on a Mercury Sable - NOT the DOHC engine - and how to replace it?

Answer 1

The following information applies to the 'regular', 12 valve "Vulcan" engines pcv valve.

For the 24 valve, DOHC engines, see "Related Questions" below ----

PCV Valve is in the end of 1/2" or so size hose inserted into a rubber grommet in the top of one of the valve covers.

INSTALL: Simply pull on the hose to release the valve from the valve cover - pull the valve out of the hose. Insert new valve and push back into valve cover.

NOTES:

* The valve is in the end of 1/2" or so size hose inserted into a rubber grommet in the top of the valve cover

* If the valve checkball rattles, it's working

* Recommended replace interval - 40,000 miles

* Can clean with a bit of carburetor cleaner spray

* The 'other' large tube going into the opposite valve cover is a breather tube On my 2000 3.0L Vulcan OHV, the PCV is located on the top of the engine in one of the valve covers, simply pull the old valve out and push the new one in. Cost of part: $2-$4.

== == == == == == 1997 Mercury Sable & Ford Taurus, 12, valve, 3.0 liter, Vulcan engine: located on top of intake manifold box, vertical position facing down. Manifold box is on passenger side, near firewall. horizontal hose extends to the right. pull assembly up since valve is a smooth connector to grommet. twist gently on hose , to remove since this is a barbed fitting. PCV valve is "el' in shape. replacement part may be straight, but comes with a right angle extender as an adapter. NOTE: new and old PCV valves do not act like a check valve. Blowing air in either direction does NOT close the valve. Old valve was clean, will save if new valve jams up or gets dirty. Old valve was clean after 103K miles.