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Old 29th March 2007
randsaab randsaab is offline
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Join Date: Jun 2006                                                
Location: massachusetts usa
My Saabs: '93 900 S
Posts: 17
Default whiney tranny when time to shift up


my '93 900 has 150k on it.. i've only had it for less than a year and haven't driven any 900's besides this one.. it's a maual shift, and i find that when the rpm guage gets anywhere beyond the 2 it gets real whiney.. not like a gear slipping kind of whine, but like "you better put me in the next gear!" kind of whine.. so i just try to accommodate that but i wonder if there's something to be fixed about it or if this is just the way the 900 transmission is... most cars i've driven have more give between when you shift up, ya know?
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Old 29th March 2007
shaverjeff shaverjeff is offline
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Join Date: Apr 2005                                                
Location: florida
My Saabs: 1994 saab 900 turbo vert
Posts: 948

Unless you have dog cut gears the transmissions are generally quite.
The usually start making noise right before the big bang...
Sounds like a synchros problem?

I am not an expert on transmissions but was getting some whine in 3rd and 4th before mine went.

I would suggest checking the fluid levels before anything else.
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Old 29th March 2007
SteveTheFolkie's Avatar
SteveTheFolkie SteveTheFolkie is offline
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Join Date: Jan 2006                                                
Location: Pennsylvania, USA
My Saabs: 1987 900 8V
Posts: 4,078

I'd drain the gearbox - try to strain the oil through a hunk of screen - that way you can evaluate how much metal is coming out - then re-fill it with fresh oil (regular, MTF, whatever) to the correct level and see if that makes any difference. If you don't know when the oil was changed last, this is as good a time as any.
It could be the gears, it could be the differential - heck - it could be an alternator bearing or some other accessory going south - if it's engine rather than road speed based. Check your belt tensions, give a listen to your accessory bearings with a stethescope (including the AC compressor clutch) - perhaps you'll be lucky and it'll be something external - and you'll still have nice, fresh oil in the gearbox!

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