Date registered: May 2006
Vehicle: 93 SL500, 95 SL320, 96 S320, 98 S500, 2002 E320 4Matic Wagon & A little 91 5.0 FORD Mustang
Location: Sacramento, California & El Dorado Hills, California, USA
Mentioned: 39 Post(s)
Quoted: 1255 Post(s)
This is my opinion only because I repair many PSE's...
To have a foundation for pressure like one would be solving a rough idle on a engine. The push pressure of the PSE must be 20 to 25PSI. The push pressure(unlock) is the hardest process for the PSE. If your in the mid to late teens. Issues start to happen.
I have tee fixture to put on each PSE line, and a pressure gauge, yet one can use a decent bicycle pump with a gauge, and get a shraeder valve for a ball, or from the tire shop...
Generally, two seconds is about 20 PSI(count 1001 & 1002) if it takes little longer, you are below 20PSI. The pressure should hold if it does not too. Follow the pressure near the diaphragm.
Check the connection at the PSE. The connection can swivel in clock pattern, but no wobble at the connection...
This is possible, that the line has had a leak for a while, and the end-of-pressure contacts have been bent in the PSE, so the pressure to the trunk handle does not get enough air time(so it never pressurizes fully). The PSE thinks it has fully pressurized.
I know I'm opening pandoras box with this. It is like teaching everyone how to repair an audio amp on these cars. Too many avenues. It is kinda difficult to describe the whole process..
Just make sure the door locks open fast on a cold day. Then measure pressure everywhere. Then look for leaks with a smoke machine...