The UIM/LIM gaskets are almost the same (lowers have locating pins) and are aprox $11 apiece (4 needed as you know). Mine on my 98 were shot (brittle/stiff/dirty as hell) so I don't know how you re-used yours. A good mechaninc can hook up a vacuum tester and see any fluctuations which would indicate a vacuum leak. I would 1st get the proper gaskets...take your time and reinstall them...and pay special attentiont to your secondery linkages. What you describe with the sticking sounds more like binding than vacuum.

Here's Bill Jenkins info..he can help you.


Bill Jenkins
Internet Parts Sales Manager
Signature Lincoln Mercury
3030 E. Sahara Ave.
Las Vegas, NV 89107
parts@signaturelm.com
800-876-3280 x272
702-457-0321 x272