I have an 02 intrepid ES with 3.5, 122K. All of a sudden the trans dropped into 2nd when I stopped. It would not shift out of 2nd until I stopped and turned the car off. The engine light came on. When the engine is cold and I drive for a while the trans shifts ok. When the car gets warm and I stop the trans drops into 2nd again. I drove 2 miles to the freeway without any problem, drove 50 miles on the freeway without slowing low enough for the trans to shift down. When I came to a stop the trans dropped into 2nd and wouldn't shift. A trans man said he thought it could be the wiring harness. Dodge gets over $400 for the harness. Was thinking of trying one from a wrecking yard for $100 just because if that wasn't the problem I would be out $400. Do I have to get a harness that matches my engine. Are the 2.7 and 3.5 trans the same. I need help. jc

 

he transmission jumping into 2nd means the transmission is in "limp mode"
step 1: have it scanned for transmission codes
step 2: fix whatever problem the code points to


i personaly havent seen a wiring harness go bad and cause a limp mode problem. you have an electrical issue yes, most likely a sensor. it needs to be scanned to figure out why.

 

If I go to Auto Zone and use their obd2 unit and get the codes. Will someone be able to tell me which sensor is bad by the codes? They don'ttell you anything atAuto Zone. jc

 

yep...get the codes and i'll let ya know what they are.

 

There are 4 codes: PO700, PO731, PO841 and P1776. Auto Zone's definition wasn't complete. It just mentioned transmission sensor problem and didn't pinpoint which one. The P1776 said something about a VW?? My son will be doing the work. We are both back yard mechanics and can get the job done most of the time. While at the wrecking yard we saw a wiring harness laying on a transmission on a 99 Intrepid,no engine. I believe there were4 sensors. I have the 3.5 engine. Dodge parts man said I had toget a wiring harness from a 2002 with 3.5 in order for the harness to work. True or false? Jim

 

P0700
Transmission Control System Malfunction





P0731
Gear 1 Incorrect ratio


P1776:
Solenoid Switch Valve Latched in Low/Reverse Position.

P0841 - Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance


the p0700 is a basic code that says you have a transmission code stored in the pcm...which then leads you to scan the tcm for codes
p0731 is "usually" caused by a faulty input or output speed sensor
p1776 is usually caused by a faulty valve body
p0841, same thing, usually caused by a faulty valve body.

replacing the harness will result in nothing more than wasted time, you have internal transmission problems. you can go to a salvage yard and swip a valve body and put it in there, erase the codes and see where your at. without me personaly having a scanner in hand on your car, its hard to pinpoint a tansmission problem. you need to look at clutch volumes and other stored and active parameters, but i believe..if it were mine. i'de be putting a valve body in it for starters.

 

When replacing the valve body, replace the filter too. no matter if you just service it.

 

Do I have to look for a valve bodyfroman '02 transmission with 3.5 engine? Or will a 98-02 with 2.7 work? jc...I do appreciate your help.

 

I have the exact same car with about 126k miles and have the exact same problem and same 3 codes. Were you able to solve the problem. If yes, then please advise me too. Can you plese reply me in subhasis.behera@gmail.com. Thanks in advance,

Subhasis

 

I have a 2003 Neon SXT and I'm not sure this is the same issue, not really knowledgeable about transmissions. I have 115K on the car and have had this 2nd tranny since 2007, which was out of the crate, brand new..issue is, when I come to a stop it seems to either kick into another gear not sure if it is higher or lower but is a good kick..any suggestions? thank you