Skip the auto shop - Our mechanics make house calls

Q: Transmission trouble shifting -1998 Plymouth Voyager

asked by on

98 Plymouth voyager se. 3.0L, 4 speed automatic transmission on the column. Having problem not shifting out of 1st. Some times gets to 2nt. Codes we went off of was P0700 and P1768. When drive for a little bit and play with it manually it will shift up. Then when slow down it abruptly down shifts to 2nt. Also just noticed the gear lights on dash(PRND3L) lightly flickering. Have replaced input/output spend sensors, the TCM, and TCC(shift solenoid). After all that still Having same problems.

My car has 110000 miles.
My car has an automatic transmission.

A: Hello. Try replacing the transmission contr...

Hello. Try replacing the transmission control relay in main junction box. This is a possible cause of the code P1768. The P0700 code should not pertain to your vehicle and may be an erroneous code. I would try the relay first, and then clear codes and retest. You could also have a wire problem in the transmission harness. You can try disconnecting and reconnecting transmission harness connections to see if this helps. If it still has issues, then have a mechanic do a thorough diagnostic pinpoint test of code P1768.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Power seats

Hi There, It sounds like the electric motor may be jammed or the track may have some kind of obstruction that may not be allowing the electric power seat motor to move the seat along the track. This can happen...

Q: Starter issues

Hello. Thanks for writing in about your 2000 Plymouth Voyager. The starter should have two wires going to it. The brown one will operate the starter solenoid on the starter to allow the large red wire at the starter to...

Q: While driving on highway, hear a loud noise then I stop and.look seem like nothing wrong.

Hello. If the vehicle will not go back into drive then you may have an internal transmission failure or it may be a broken shifter cable. I have seen these cables break frequently. I would need to know a little...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...