[HomerDodd]

I'm wondering if a '95 Seville 4.6 has a vacuum operated HVAC system and/or brake release? My idle is slightly high, and I can't seem to find the leak in the engine area. I found one with my homemade smoke machine (leaking at the PCV valve grommet), and already fixed it a few months ago. I suspect another leak and thought it could be under the dash, if possible. I'm going to try my smoke machine again tomorrow or just use a cigar. Does anyone have a vaccum diagram for the 4.6 Seville? Thanks.

 

[Ranger]

Both the HVAC and the parking brake release are vacuum operated.
Don't overlook the vacuum reservoir (#10) and the check valve (#14) under the battery try.

 

[HomerDodd]

This is great !!! Thanks. I'll "smoke" check it today, along with the visual test.