My first post !
Hope you can help
I'm told that the only way to fix my speedo is to take the gearbox apart.
I can believe it, but I'd much rather have an alternative
My guy has spent a good couple of hours on it and he is good, although not a Saab expert
Anyone help please ?
Welcome! :)
I do believe that the gearbox has to come out and apart if the drive gear for the speedo has failed. But I haven't owned a 9000, so I can't be sure. There are experts around here that can help.
Just to give them a head start, could you tell us whether it's a manual or auto gearbox and what year the car was registered.
Thanks
Manual, P Reg, January 1997
Fingers crossed there is an easier fix
Welcome to the board :)
Not positive on removing the gearbox, though this chap suggests you do:
http://www.saab9000.com/gallery/yKLCYJAX/index.php
Removal and refitting guide - manual gearbox:
http://www.saab9000.com/procedures/powertrain/mantransmission/replace.php
It may be the transducer on the top external part of the gearbox final drive (I had one fail, but the speedo would bounce up and down ot a crawling pace as one coil had failed).
But it's more likely the plastic gear ring has broken which requires a complete gearbox strip and rebuild....
Also, the car engine ecu uses that speed signal for itself and will start to degrade the driving experience/performance after a period of time (days/miles)
Thanks both
I was hoping for a magic fix. Seems like my guy Pete knows what he's on about even though not a Saab expert -Jaguar trained some years ago so he knows about problems !
Ironic that the gearbox was completely replaced just before I bought the car !
I cycle to work most days and rarely go anywhere. Running a printing company takes most of my time
Suggestions was that I get a GPS to give me speed indication
Thanks again. Time to ponder.
Quote from: mikemusic on 18 September 2013, 08:04:32 AM
Suggestions was that I get a GPS to give me speed indication
That's what I was thinking too - could a GPS be taken as a speedo for the purposes of the MOT?
I'm not a tester, but as much as I like the idea they would probably argue it is removable or not part of the car. If it take a while to get first fix or you go through a tunnel, you would be driving without a working speed indicator.
Quote from: ScarbSaab on 18 September 2013, 10:00:22 AM
I'm not a tester, but as much as I like the idea they would probably argue it is removable or not part of the car. If it take a while to get first fix or you go through a tunnel, you would be driving without a working speed indicator.
And the car will start to run like rubbish after it hasn't had the speed signal to the ecu for a while.
Quote from: Kev_Mc on 18 September 2013, 08:58:17 AM
Quote from: mikemusic on 18 September 2013, 08:04:32 AM
Suggestions was that I get a GPS to give me speed indication
That's what I was thinking too - could a GPS be taken as a speedo for the purposes of the MOT?
I did wonder
Quote from: ScarbSaab on 18 September 2013, 10:00:22 AM
I'm not a tester, but as much as I like the idea they would probably argue it is removable or not part of the car. If it take a while to get first fix or you go through a tunnel, you would be driving without a working speed indicator.
I'll ask the question of an MOT tester I know - purely hypothetical of course !
:)
Assuming I get this done what else can sensibly be done while he's in there ?
Clutch comes to mind even though it seems fine, probably done around 30k miles