The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 3/26 M Car Covers (by State of Nine) | 12/12 Make Amazon Pay Saabnet!
Date: Mon, 01 May 2000 09:45:29 GMT
From: grothnopsamiot.net.au (Gareth)
Subject: Re: 85 900T possible overheating?????


>The other replies to your post had some good ideas, let me give you a >couple more. >Switch to the 82 degree C thermostat and fan switch. That will get >your fans to come on sooner and reduce the heating problem. >Check to see that your current fans are both working the way they >should. Short across the terminals of the fan switch (upper left >corner of the radiator) and see if both fans come on. Now you know >that the fans are working. With the engine running, turn on the A/C; >both fans should come on. This is as it should be. Consider doing the >rewiring that will have both fans come on when the engine heats up, >even if the A/C is off. (Check the site http://www.townsendimports.com >for a wiring diagram. Keep trying, their server and ISP is acting up.) Here's a paragraph taken from http://www.townsendimports.com : ==== For all 900s and Early 9000s with the two wire fan sensor, we strongly suggest you swap the original fan sensor that turns the fans on the first time at 92 degrees Celsius for one that turns them on at 82 degrees. When used with a factory 82 degree thermostat(8817538), this avoids the temperature overshoot problem seen when getting in traffic after highway driving, and maintains the gauge reading at about halfway. The sensor simply screws into and out of the radiator and the wires plug right up. We use a sensor made by Wahler for VW. You can get this sensor from a VW dealer under the part number 823959481D, or from us if you can't find it. That is a pretty old VW part number now, but it is what we order it under. We have not found a cooler direct replacement for later 9000s with the two stage fan, but are searching. You can rewire them to accept the cooler old style switch, but that is detailed in another page on this site. ==== It firstly mentions replacing the two wire fan sensor with one that turns the fans on a 82 degrees C. It then says: " When used with a factory 82 degree thermostat(8817538), this avoids..." Now, my understating is that "when used with" means in normal english "when the fan sensor is used with the factory 82 degree thermostat..." This would mean two items would need to be replaced - a fan sensor and a thermostat. However, I thought the thermostat *was* the fan sensor.... ? (I don't know anything about SAABs, so I'm probably wrong here... but I ask because some parts of the website seemed to contain bad english, so I thought that maybe this was just another case of it.) Oh, and to the original poster - have you actually done this upgrade? Australian summertime can be quite nasty to a SAAB, and so I'd love to know how much an improvement the 92 -> 82 degree C modification would make in reality. Many thanks, Gareth Computer Systems Engineering, University of Adelaide

Return to Main Index
StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]