Date: Sun, 11 Jan 1998 16:43:07 -0800
From: Justin VanAbrahams <jvanabranopsamnet>
Subject: Re: 1987 spg owner with questions

Herman I Sexton Jr wrote: > > I have a 1987 spg that I have owned since 94' and I just found this > newsgroup, I have the following questions for my fellow Saab owners > > 1. I was told that vents for heat function differently, the one in the > middle is primarily for the a/c and should not be used with the heat on, > and that the second setting on the the selection dial will always function > at full blast. Yes... the two center vents are "cool air only" vents. When using the heater, for maximum heating power, you are best off closing these vents. > 2. how many miles on a fill up should I get My '88 SPG got between 220 and 240 miles to a tank, my '90 between 200 and 240, and my '88 between 240 and 280. As opposed to my 9000 (same engine) which routinely gets 350, and has gotten as much as 420. > 3. I just installed a new turbo and I am told that it is normal for the > turbo gauge to go into the yellow and idle in the middle of the gauge The WHITE area on the gauge represents vacuum, when intake pressures are so low that it is sucking air in, rather than relying on the turbo. The YELLOW area of the gauge represents a pressurized intake manifold, meaning the turbo is supplying pressurized intake air. The little notched area of WHITE, between the main white & yellow areas represents no pressure and no vacuum; that is why the needle returns there when the car is off. When the car is idling, the needle should be very low in the white area; under full boost the needle should max out at the area where the yellow meets the red. On occasion, the needle may enter the red for brief periods of time and, depending on engine temps & fuel quality, the needle may not even get close to the red. > 4. and finally, I was told that the apc system does not need to be changed The 'APC system' is composed of several smaller systems, including a couple sensors, a solenoid valve, and a computer. Generally speaking, none of these components have a preset replacement date (that is, you fix 'em when they break). The computer very rarely wears out, but from time to time solenoid valves will need replacement. If you find that your turbo is not behaving correctly (watch the gauge, and compare it to the above info) you may need a new solenoid. > I am always on top of any problem with my Saab and this is my second one, I > don't trust the mechanics in new york, I've been through 4 of them and they > were all shaky. I got a new story everytime I went to them. I would suggest subscribing to Turbo! or the The Saab Network mailing lists. Both are full of great information, and surely someone there can recommend a reliable mechanic in the New York area. Turbo! The Saab Network -Justin

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