Question about 1987 Saab 900
The vent actuators are vacuum controlled on this model. Do you hear a hissing sound when you turn the control knob? If not, then you'll need to check the pipe or hose connections. Start with the vacuum reservoir bottle on the right hand wing just in front of the door. Ther'll be a hose from the inlet manifold to the bottle, make sure that's connected & air tight. The other pipe from the bottle goes to the heater controls. Has the radio been removed or any work done in that area? If all appears fine, remove the radio & make sure the large white, multi-hosed connector is fitted securely to the control switch & all the pipes are connected to it.
Good luck, let me know if you need any further help.
Posted on Sep 03, 2008
Tips for a great answer:
Nov 28, 2015 | 1995 Jeep Grand Cherokee
Aug 24, 2014 | Cars & Trucks
May 07, 2014 | 1987 Suzuki Samurai
Oct 26, 2013 | Jeep Cars & Trucks
Feb 06, 2012 | 2001 Chevrolet Malibu
Aug 12, 2010 | 2003 Toyota Highlander
Jan 04, 2010 | 2000 Jeep Grand Cherokee
Dec 31, 2009 | 1998 Honda Civic
Jan 01, 2009 | 1995 Pontiac Grand Am
305 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: