My vacuum was being lost on on cold days and intermediately. Traced to one lost line and then found the trunk actuator that test good the first time but then had total failure. Would not hold vacuum at all. Diaphragm and boot appeared to be good. Cleaned out old hard glue around diaphram and used silicone grease to help make the seals, snapped plastic housing back together and notice about 1/32 gap between locking tabs and housing. Used silcone tape to squeeze them together. Hold 25 vac and drops to 15 after 12 hours.

What type of glue to hold the boot to the actuator shaft?

The housing was still leaking. Upon closer examination, the plastic had a dent on the sealing area that was mended by what looks like epoxy, but not fully built up to level and over level on the inside. May epoxy or plastic welding. Anybody know that the housing is (pvc, pp, abs plastic)?

For US residents, EPCnet online has the data card information for free. Outside the US there is a charge. http://epc.startekinfo.com/
Requires JAVA 6 and will not work with JAVA 7.