Question about 1999 Oldsmobile Silhouette
I just had the Transmission Rebuilt, I drove it and at around 80-90 MPH the RPM are about 4000 RPM, Prior to the Transmission being rebuilt the car ran around 2,500 RPM at those speeds. I had 2 Mechanics see it and they told me that it was fine. I might be going nuts but I know my own car. The car seems to shift into all 4 gears, but I just feel that the car is high rpm. Any clues?
These cars have a lock up torque converter meaning 4 gear going above 35 to 40 MPH, the engine and transmission lock together and turn at the same rate. I know that older GM cars had a plug that needed to be plugged into the transmission for the lock function to work on the torque converter and if you unplugged it the RPM's would run high as you describe. I have never had a 1999 Silhouette and I'm not 100% sure that these cars have that type of plug but it sounds like that type of problem. I agree with you. You know your car and I would take it to a transmission mechanic and describe your problem to them.
Posted on Nov 12, 2008
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Posted on Jan 02, 2017
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