97 concorde first gear & reverse only. is not in limp mode. Trys to shift up but no second and goes back to first 2 codes PO733 & PO700. trans fluid does not smell burnt.

This may help you find out why it is in limp mode.
https://www.youtube.com/watch?v=hLwE4d7V2E8

Beware speed sensors seldom fail. Chrysler products transmission have a limp mode where they only shift to second gear when something goes wrong and many times when nothing is wrong. If the speedometer fails it goes to limp. If an OBD scan gives a transmission code sometimes clearing the code will end the problem. When driving if the transmission shifts one time as it should the sensor is working.

a scan will have to be done to see if tps is correct, the trans. is in limp mode & will not go out of limp mode until codes are cleared then you can check tps, and solenoids. but first a scan of codes ....

First thing tomorrow, take it back to the shop that rebuilt it!!

The code 700 is a notice that there is a problem with the trans control module, and code 1776 could be a problem with the low-reverse solenoid inside the trans. Code 1776 can trigger the code 700.
The solenoid would need to be tested.

Hi, It may be in LIMP mode.

What is "limp-home 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.

Common failures on 4L60E, symptom any possible repair:

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.

Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the trans goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either. R&R sooner rather than later.

3rd gear starts, can manually shift through all gears. When car has been turned off for a bit, then back on it will run normally.: VSS dropoff w/ Hi-stall converter. The rpms are too high, but VSS is showing no movement. Happens after a tire burning take-off. Doesn't store a code, will not throw a CEL (I've heard that it will store a code if it happens 3 or more times). Cure: Reprogram PCM for VSS dropoff -- PCMforLess knows about it.

If you can get the Jimmy for no more then $500.00 and the engine sounds good and body is good, you may want to invest in the repair of the jimmy. Also note that to have a close look at the fuel line along the frame on the drivers side just by the back doors, the line is know to corroded there on all the SUV's

it is going in limp mode,
if your speedometer is not working will cause this,that would be a speed sensor,or the other two reasons would be the input or output sensors on the tranny

if u have codes in ecm find the codes most ime is input turbine sensor

It sounds like it is in limp mode, this means that there is a transmission problem. The trans will go into limp mode to protect from further damage. You need to take it to a trans shop to have diagnostic test

code po700 is what the pcm gets from the tcm when there is a problem with the transmission-anywhere from fluid level, sensor, solenoid, tcm problem, or mechanical problem.
the situation you have with the car being in 2nd gear is called "limp-in" mode. so you can limp-in to a repair center.