1993 Grand Am automatic transmission, changed fluid and filter now won't go into third gear. Possible causes?

It sounds like you do have a transmission problem, it is possible that the torque converter is at fault. I would suggest you take it to a dealer that does specialize in transmissions.

For Automatic transmission problem,click the link below:---- Automatic transmission troubleshooting:----

http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html

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Automatic transmission shift lever issues?-------

http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html

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AUTOMATIC TRANSMISSION FLUID LEVEL? --

http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html

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AUTOMATIC TRANSMISSION FLUID AND FILTER?

http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html

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Transmission fault light on car dash?

http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html

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Transmission shifting problem?

http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html

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Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

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OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

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Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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Transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

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****** wont go in reverse?

http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html

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Automatic transmission will not go into reverse?

http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html

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Transmission is making buzzing noise?

http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html

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This will help.

Thanks.

Hi, since you use a dextron type 2 automatic fluid then it is not cause of the sticking gear. Rather it should be as a result of a clogged transmission filter. A clogged transmission filtercan cause problems with changing gears because it will not allow the fluid to pass through the valve body or valve solenoids at the proper pressure. Without pressure, the plates won't move properly and you won't be able to easily change gears. This can be symptomatic either by itself or along with burnt or worn out transmission fluid, and both should generally be replaced at the same time, rather than just replacing one or the other.

If the transmission will not go into gear or has trouble finding gears and has the proper amount of fluid, the shifting linkage could be bent or misaligned, especially on automatic models. The linkage can be found on the driver side of the transmission, toward the top of the unit. Inspect it to make sure the components aren't bent or broken and have someone shift the Grand Cherokee while you watch from underneath. Most times, only minor adjustments are necessary.
Also, check Torque Converter and scanned the TCM (Trans Control Module) to know if some fault code is stored there.

your shifter cable is going bad.

In automatic transmissions the second to third syncronizers always seem to go bad first, the syncronizers are worn, bad or gone. This is common in these transmissions. Also you might check your trans fluid level, sometimes a low level will cause the transmission not to shift correctly.

Several things could be causing your problem:

1. Auto transmission fluid is low
2. Auto transmission fluid needs changing; this is an area that gets neglected by a lot of people;check the fluid and if its brown or gives off a burning smell, it needs changing. Very old transmission fluid will cause slipping in the transmission; if this is the case, it should be changed along with the filter

Hope you find that this answers your question. Best of luck.
Greg

p.s. If you have the fluid changed, make sure it's done from the tranmission pan, not through the filler tube; siphoning through the filler tube can be hazardous to the transmission, especially cars with a lot of miles

Check fluid to make sure it's full. Did you check to make sure that when you move the shifter, the transmission shift lever on the case moves? Assuming it's an automatic, if fluid is full and linkage moves properly, has fluid been changed? If not, do it! (including filter) If when changing fluid, you find an excessive amount of fine metal or clutch material in pan, chances are the unit has worn out and needs rebuild, If everything inside is clean & good then finish with change and check results.If still having same problem it's likely internal or if electrically shifted, a shift module problem etc.

possible governor problem;
this part or group regulates the fluid pressures during changing loads.

Is this car a six or eight cylinder?
If the car has a kickdown cable check the adjustment.