It shifts from 1st to 2nd fine but then it shifts to 3rd and o/d before the car hits 40 it doesnt do it all the time but its getting worse by the day. the fluid levels are good its not dark it feels like when u shift a manuel to soon
The
following are the general instructions on the start of diagnosing any
electronically controlled engine or transmission problem. The
engine and the automatic transmission (transmission control is only
for automatics, engine is still computer controlled no matter the
transmission type) in this vehicle are computer controlled and in
most cases when a fault occurs a fault code is stored in the memory
of the computer control module. There are exception to this, such as
the Mass Airflow Meter and fuel pressure problems. What must be done
is to have all the basic testing done such as a scan of the system
for fault codes as well as a check with a live data scanner tool for
engine functions that are not within range of normal, a trained
technician is required to know what is correct and what isn't, then
based on careful diagnostics done from a factory repair manual the
correct part is replaced or the wiring repaired or the computer
replaced (known as the PCM), which is very rarely the problem. Other
basic checks must be done as well such as mechanical problems with
the engine as well as engine state of tune and mileage on the engine.
The transmission can have mechanical issues as well such as no gear
engagement at all or a failed pump or other pressure related
problems.
SOURCE: Automatic car won't shift from 2nd to 3rd, it just revs up
transmissions will not shift into overdrive, all other gears shift fine
SOURCE: 1999 Olsmobile Alero
sounds like bad clutches in trans...tranny shop needed...takes 4 qts for a filter change and remember to check it when the vehicle is warm and in park running.
SOURCE: no shift after warm up. filter fluid changed and made it worse
the solenoids are attached to the valve body. you nust remove the side cover to replace the solenoids. Your problem is probably burt clutches in the third clutch When you changed the oil was it black? this is an indication of burt clutches. only repair would be to replace the transmission.
SOURCE: 2002 Alero shifting hard
I have a 1999 Oldsmobile Alero and my car was running rough and stalling. Also when the car was shifting, it was making a "thud" sound. My service engine light was on, so I took it to Autozone to run their diagnostic tool. It came back with code P0108 and they advised me to check my vacuum hoses as a possible solution. I looked and found that my air hose running from my throttle body to my map sensor was disconnected. I reconnected the hose and the engine ran normally and didn't make any "thud" sound when shifting. My car is back to normal. So check your hoses. If its still running rough, you may need to replace your map sensor.
SOURCE: Olds Intrigue transmissions shift Harshly & disappears
I have a 99 olds intrigue 3.8l Autozone computer states poor electrical connection or short circuit, or failed vehicle spped sensor or drive gear mechanical fault. speedometer works sometimes and drives great next time it raises rpm and speedometer does not work. Where is the speed sensor or where is the elctrical circuit I can check to see if connections are good.
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