Date: Sun, 24 Nov 2002 03:59:53 GMT From: "knuckles" <knuckleknockernopsamail.com> Subject: Re: Is my automatic transmission about to go?
Yeh. Have your mechanic hook up a Tech 2 and go for a ride. I'm not sure what diagnostic functions are available for Saab -I'm a newbie owner. But I have had experience with OBDII equipped GM cars/trucks and hope the Saab is at least comparable. Using the Tech 2, the mechanic should be able to get a real-time reading for various engine & transmission parameters. The Saab program should tell the mechanic what the acceptable range is for shift points and duration, torque converter lock-up, line pressures, and whether any faults have been logged to the powertrain control module. If the fluid's been recently changed, then the problem lies elsewhere -perhaps a faulty shift solenoid, or leaky valve. Good luck. I'll be interested to find out what what you learn. P. Sage" <polysagenopsamo.com> wrote in message news:cdf760b.0211230604.6ecd85f0nopsaming.google.com... > Thanks for your reply! > > Actually, this car has just had its 90,000 mile servicing, which I > believe is supposed to include flushing the automatic transmission > fluid and refilling it. I also did check the levels and they were > fine. > > Any other suggestions? > > Thanks! > > "knuckles" <knuckleknockernopsamail.com> wrote in message news:<dmWC9.1342$It3.105482nopsamread2.prod.itd.earthlink.net>... > > Check your fluid levels. If it's low you can get that sort of slip. While > > you're at it check the condition of the oil on the stick. Specifically, > > check to see if it smells burnt, or is brown/reddish brown in color. If all > > seems well, and you haven't serviced the trans in a while, have it serviced, > > or do it yourself. When you do, though, inspect the trans oil pan for burnt > > clutch material, or metal. If excessive clutch material (looks like grey > > sludge) it could be a sign that the clutches have worn out and now tend to > > slip -in which case, a rebuild may be in your future. If there are metal > > shavings in the pan, take it to a dealer or reputable transmission shop. > > Metal is a bad sign. > > > > In short, it could be something as simple as a clogged trans oil filter, or > > low fluid levels, or it could be more serious. > > > > > > "P. Sage" <polysagenopsamo.com> wrote in message > > news:cdf760b.0211201518.88f2e36nopsaming.google.com... > > > I wonder if anyone can give me some good comments on what I'm seeing? > > > > > > I have a 1992 Saab 9000 CD with automatic transmission. It has about > > > 92,000 miles on it. > > > > > > The transmission shifts fine, but lately I've noticed that sometimes > > > when going from a complete stop on a steep hill, or when accellerating > > > very quickly, there's a slip before it engages. > > > > > > It feels like this: the engine starts turning, everything's turning, > > > but there's no power going to the wheels. After maybe 1/2 second or > > > so, the wheels start turning with a very slight jolt. > > > > > > So my questions: > > > > > > - is it the transmission or the torque converter? > > > - is it fixable? easily? > > > - is it a sign the transmission's about to go? > > > - what do you recommend that I do? > > > > > > Thanks in advance for any advice or help! > > > >
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