1995 Other Oldsmobile Models Shifting into higher gears too

1995 OLDSMOBILE
85,000 MILES • 6 CYL • 2WD • AUTOMATIC
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My Olds Achieva has started to have this problem off and on over the last month. It will be perfectly fine for a while and then start acting up. I changed the vaccuum modulator and this did not help. The oil is red and does not smell burnt, but has never been changed since I have owned the car. (40000 miles)
I seems like a manual transmission car when too high a gear is selected at a given speed. Putting the selector in 3 or 2 seems to help eliminate the shudder somewhat. Transmission shops only want to replace the whole transmission. (about $1800) I am somewhat of a mechanic and could remove the pan and change the filter and oil. I have no check engine light and the tranny connector plug looks clean.
Oct 7, 2008 at 1:23 PM
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MERLIN2021
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Is the service engine soon light on? GM's had an issue with the water getting into the electrical connector and causing corosion. Unplug the tranny connector and have a look.
Oct 7, 2008 at 5:01 PM