stsjoe Posted August 26, 2007 Report Share Posted August 26, 2007 Anybody know where it's at? FSM mentions it but doesn't say where it is (E brake won't auto release, no passa da inspection) Thanks Joe Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 26, 2007 Report Share Posted August 26, 2007 Anybody know where it's at? FSM mentions it but doesn't say where it is (E brake won't auto release, no passa da inspection) Thanks Joe See Scotty's post and look at #7 in the picture. Its a vacuum servo with vacuum provided through the ACM. If you want more info search SERVO Mike Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
stsjoe Posted August 26, 2007 Author Report Share Posted August 26, 2007 Thanks Mike! Joe Link to comment Share on other sites More sharing options...
Ranger Posted August 26, 2007 Report Share Posted August 26, 2007 Joe, just look up above the parking brake. You'll see the handle. Don't pull it with you head down there. You'll be in for a rude awakening. Once you know where it is, you can just reach down and grab the handle. You obviously have a vacuum leak. Most likely in the diaphragm. That will cause your HVAC to default to the defrost mode. Link to comment Share on other sites More sharing options...
stsjoe Posted August 27, 2007 Author Report Share Posted August 27, 2007 Thanks for the HEADS UP Ranger The HVAC is working fine so I'm hopping its the solenoid. Auto release has to work to pass Va. inspection (sounds like BS to me, I showed them the manual release they said "no dice") Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 27, 2007 Report Share Posted August 27, 2007 Its simple to test the servo, put a handhelp vacuum pump on it (if it has a guage thats better), remove the ACM vacuum hose, and with the parking brake set, and suck a vacuum, if the brake pops up, its vacuum related if it does not pop its the servo diaphram. I replaced mine Also, if you have a vacuum gage, you can connect it to the vacuum source from the ACM, when you put the car in R or D, you should see a vacuum drawn, whereas if its in P, no vacuum. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted August 27, 2007 Report Share Posted August 27, 2007 Thanks for the HEADS UP Ranger The HVAC is working fine so I'm hopping its the solenoid. Auto release has to work to pass Va. inspection (sounds like BS to me, I showed them the manual release they said "no dice") Don't look for a solenoid Joe. There ain't one. '96 is vacuum operated, so look for a vacuum diaphragm like BBF said. Later years went to an electrical solenoid release. Link to comment Share on other sites More sharing options...
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