My transmission only has 2nd and 3rd gear and in order to get them I have to manually shift from 2nd into 3rd. My 1st does not work at all and neither does my overdrive. The computer is giving three different transmission siliniod codes. Do you think the siliniods will fix my problem?

bring it back

Hello. It seems your vehicle's transmission has to be rebuilt/replaced. Any automatic transmission that won't 'shift' from 1st gear into 2nd or 3rd gear has a 'worn' slave cylinder that 'slides' gears one way or another. 1st gear works yet 2nd and 3rd don't. Good luck and keep me informed; if you want to.

Greetings, I read your question and I think Reliable-Store can help you in this. Here's the site link.
Jcb Service Manuals

How to adjust 3 speed column shifter - YouTube

? 9:53
https://www.youtube.com/watch?v=2TCHzIvAvRQ
Mar 6, 2014 - Uploaded by luke Fugate
This is a video to show you how to adjust a Three speed on the column to ... It's great not having to wind the engine and transmission just to take off in 2nd or 3rd gear. ... It was ALWAYS getting stuck between 1st and 2nd gear. .... 1977 c10 3 On The Tree ' How to Drive a 3 Speed Column Shift - Duration: ...

Diagnose Automatic Transmission

www.aa1car.com/library/2002/bf90222.htm

All they know is that they put their gear selector in "D" for Drive and their vehicle ... But when internal problems cause the transmission to act up, it takes a fair amount .... In Chrysler three-speed automatics, changing the fluid to ATF+3 can also help ...kickdowns to get the transmission to downshift to 1st from 2nd or 3rd gear.

Manual transmission - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Manual_transmission

Wikipedia1 Overview; 2 Unsynchronized transmission; 3 Synchronized transmission; 4 Internals.... gear speeds by blipping the throttle when shifting from 2nd into 1st. ... In a synchromesh gearbox, to correctly match the speed of the gear to that of the ... Even in transmissions that do not feature direct drive, it's an advantage for the ...

When do you use the 1,2,3 gears on an automatic car ...

https://www.reddit.com/.../when_do_you_use_the_123_gears_on_..

http://techauto.awardspace.com/transmission.html
this covers the symptoms and the repairs. to me it sounds like it could be the tcu. maybe a blown capacitor. hope this helps. and goodluck.

Sounds like your transmission is in limp mode. This is a fault mode in which the transmission either loses electrical power or the PCM deactivates all of the electronics. The transmission will default to max line pressure. The driver will have Reverse and 3rd, with manual 2nd available by putting the gearshift in 2 or 1 (doesn't matter). 1st, 4th, and TCC lockup will not be available. It will not hurt the car to drive it like this for short periods, but use manual 2nd to get the car moving, and be aware that the trans will generate more heat than normal while operating in limp-home mode due to increased torque converter slippage during 2nd gear starts and no lockup in 3rd gear.

The other from what you described, trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.

Thank you for using fixya and have your Safari scanned for the DTC codes that would indicate what issues your transmission is having to put you in to limp mode.

This is a fault mode in which the transmission either loses electrical power or the PCM deactivates all of the electronics. The transmission will default to max line pressure. The driver will have Reverse and 3rd, with manual 2nd available by putting the gearshift in 2 or 1 (doesn't matter). 1st, 4th, and TCC lockup will not be available. It will not hurt the car to drive it like this for short periods, but use manual 2nd to get the car moving, and be aware that the trans will generate more heat than normal while operating in limp-home mode due to increased torque converter slippage during 2nd gear starts and no lockup in 3rd gear.

Trans shifts into gear harshly, car feels sluggish off the line, No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are only available gears, CEL is on: Transmission is either in limp-home mode or has lost electrical power. If there are lots of error codes in the PCM, check the under hood fuse that powers the transmission, and if it pops again, look for a short in that circuit like an O2 sensor harness touching exhaust. Otherwise, check PCM codes for a particular fault in the transmission causing the PCM to put it in limp-home mode.

No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter : ShiftA solenoid failed. Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.

Car goes into gear but feels very sluggish like the brakes are dragging, but it will roll easily (starts out in 4th gear), you manually shift to 2 to get it moving, once it's moving you put it back in OD and the car shifts 3rd to 4th on its own and locks the converter at the appropriate time: ShiftB solenoid failed: Easy fix in the pan. Or a wiring problem from PCM to trans.. or PCM.

Hi:

Your transmission has 3 shift rails...
1st - 2nd
3rd -4th
5th- Reverse

If your 3rd gear doesn't work , you have an internal transmission problem, such as a syncronizer, or similar fail... There is not much you can fix, without removeing the transmission.

The transmission needs to have the filter and fluid replaced.

Check that the OD solenoid on the torque converter is good still. When the R4 wont go into OD you have no more gears than 1st an 2nd. If the OD clutch drum was relaced if it was burnt, that will make a problem also. You have to have OD in order for these babies to work right.