Re: Stiff vent control knob - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Stiff vent control knob
Posted by loscozbmw [Email] (more from loscozbmw) on Thu, 6 Jan 2005 14:04:34
In Reply to: Re: Stiff vent control knob, ART, Tue, 12 Jun 2001 20:43:14
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This is common problem on the NG 900 and I think some of the 9-3s. It is a factory defect in the design of the housing for the vent directional barrel. The barrel sits in slots inside the housing.The slots are on either end of the housing. The barrel has a pin on each end that sits in these slots. The problem is an age problem due to heat and age of the materials and the housing to warp and buckle and create pressure on the ends of the barrel. When the car was new and the problem started, Saab did do a few warrantee repairs but was not widely known and was never a recall.In other words Saab (GM) did not want to cover the repairs as it was not a safety issue ?? (Defrost does not work is not a safety issue ??) Saab dealers where doing some sort of a repair by installing
a screw someplace at the ends of the housing thus pushing or pulling the ends of the housing away from the barrel relieving the pressure off the barrel. I have made brackets that attach to the housing and then to the dash support tubing mounts (10mm nut)to pry the housing away from the barrel inside the housing. It is too hard to get too much into the details here as to how I did this, but this is the problem. Somehow you have to figure a way to spread the housing apart to free up the barrel. Lube helps a little but only for a little while and is hard to get into the pivot points and the ends of the barrel.Then the lube dries up due to the heat and the knobs get tight again and the shaft or the back of the knob breaks off a"again"!! Be creative and find some way to relieve the pressure off the barrel by pulling the housing away from the barrel ends.
posted by 65.175.157...
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