First, thanks for the answer on the brake light switch for the 96
Sable.. you were on the money.
1996 Sable - 91K miles. 24 valve 3.0 engine.
So.. I have driven the car some 300 miles the last two weeks. To
work...around town, 10 to 30 miles typical.. and there has been two
incidents where after driving the car for 30 minutes, (drive to work)
and pulling into the parking lot.... and shifting into park, then
deciding..need to move a little more ..shift into reverse or drive, the
transmission will not engage. Just as if the transmission fluid was
low...RPMs go up, but no forward or reverse motion, but..if just left
in gear, wait about 20 seconds..and the transmission will engage. The
level of the fliud according to the dipstick was correct, and per the
manual to check with the engine at operating temperature. The color
was the normal (at least in my opinion-normal) red color...the fluid
also did not smell burnt.. just regular transmission fluid smell.
No indication of slippage at highway speed, none when the engine is
cold, and only twice has it "slipped" after driving, coming to a stop,
and being put in park and then moving to drive or reverse, and over a
period of time that has included numerous shifts, starts, stops, and a
few hard acceleration starts. When I played "John Force at the
dragstrip" acceleration tests twice, the car performed with no
problems...clean positive shifts, no unusual noises, and no slippage.
My experience with transmissions make me really cringe when a
transimission slips occasionally...I have always had the experience of
the "slippage" growing worse until there is no more forward or reverse
motion at all.
My first plan of attack is to have the transmission fluid changed and
the filter changed....
Obviously the question I have .. what could be going wrong? I realize
the info I have given is not all that precise and the only real way to
diagnose is to be able to repeat the problem, but I hope to see where I
need to take a hard look at. One thing I want to do is to have the
fluid analyzed such the way it can be done for engine oil. I have been
told by one person, if the transmission goes, to not sink the money
into the car as it will cost more than the car is worth. But overall
the car is in such nice shape overall, it would be a shame to not at
least make sure I can do things to prevent any more damage.
Thanks in advance if you can offer any advice.