Is the PCV fitting on my crankcase supposed to be loose?

Tiny
QUINTEN
  • MEMBER
  • 1993 DODGE CARAVAN
  • 286,000 MILES
The little fitting on the front crankcase for the hose going to the air cleaner housing, this fitting is not sealed at all, I can pretty much spin it with my fingers.
Sunday, September 4th, 2011 AT 6:41 PM

3 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Which engine do you have?
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Sunday, September 4th, 2011 AT 7:56 PM
Tiny
QUINTEN
  • MEMBER
  • 2 POSTS
3.3L v6
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Monday, September 5th, 2011 AT 6:26 AM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Very sorry to leave you hanging. I just looked at the 3.3L in my '95 Grand Caravan, and the fitting you're referring to is in the middle of the front valve cover. It is crimped on but should not be free to spin.

I can recommend two fixes. One is to find a used valve cover in a salvage yard. There's no gaskets used on them. You must scrape all the old gasket sealer off both surfaces and use a new bead of sealer. A rotary air tool with a scuffing disc works best. The Chrysler dealer's parts department has gray and black sealant. With the black stuff, there must be absolutely no trace of oil on either surface. If there is, the sealant won't bond and seal. The gray stuff gets a little harder but will bond through a small film of oil if both surfaces aren't perfectly clean.

The second fix is to wash the area around the fitting with brake parts cleaner or carburetor cleaner, then force in a bead of the gray sealer around it. Once it sets up it will seal the tube.
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Tuesday, September 13th, 2011 AT 11:14 PM

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