Both of our aero auto's never downshift -- - Saab General Bulletin Board - Saabnet.com
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Both of our aero auto's never downshift --
Posted by JIMMY (more from JIMMY) on Sun, 5 Jun 2005 21:51:59
In Reply to: Re: cruise control and automatic transmission question, Railhead [Profile/Gallery]
, Sat, 4 Jun 2005 11:35:34
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one is a '01 sedan (4 spd auto) and the other is a '03 wagon (5speed auto) but the 5 speed auto shifts so smooth you may never notice -- Both of them just add boost to get up the hill - we live at 7,000 ft elevation in the mountains.
Mostly what you are experiencing is the sensitivity of different cruise control systems -- the current saab system uses the electrontic throttle body to just control vehicle speed ---very quickly, smoothly and accurately. Many older systems relied on a motor driven cable pulling on the throttle lever of the engine -- very slow and un-sensitive. By the time it sensed the car slowing down, it has to open the throttle so wide that it downshifts the treansmission.
posted by 4.240.23...
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