I've done tons of research on this and other sites. Here's how my system is acting: everything is fine until I lock my doors, generally they will all lock right away. When I return to the car they will not all unlock AND the next time I shut the car off it will run on. This leads me to believe I have a leak in the locking system somewhere. I've replaced the driver's door vacuum actuator. What are the other usual trouble areas? Will I need to replace actual vacuum hose or more likely an actuator or connector?
Thanks much for your advice on an issue that I'm sure many are tired of responding to!

Shawn,


You need to find your leak. Does your engine shut down quickly or slowly? Anway, the "drivers door actuator" is a vacuum switch. THere are door actuators in the other doors, trunk, gas, and a/c system. All check valves and y-fittings should be tight and working properly(over the oil filter area, so they get bumped).
The kill switch can also cause problems. Is it erratic or consistent?

I assume you have a W123- but you really need to state the exact year and model car, each body style is a little different.

Basic proceedure is two ways: elimination by diagniosis. The crudest way is to listen to the doors, or you can pull the carpets find the lines. Use a mightyvac and check each vacuum line goign to a door actuator holds a good vacuum. It's a process of elimination.
This is by far the most irritating thing on W123's in my opinion. Not hard to fix, but I'm lazy

Michael

__________________
Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E

It is highly likely that your leak is one or more of the vacuum diaphragms. If you put your mity vac on enough of the lines along the way, you will almost certainly come across the troubling culprit.

Good luck,