Wont shift into overdrive check engine light reads thortale postion sensor . worked good one day and five mintues later didnt work . i have 139,000 miles on it . will my vechile speed sensor cause this problem i have two one in trans and the other on rear axel
I believe if the throttle position sensor signal does not match the signal from some other (forget which) the computer will not allow converter lock up. Fix problem with TPS first.
SOURCE: Replaced rear differential speed sensor
Did you use a mopar sensor.I have fixed this problem many times and not had much luck with the aftermarket sensors.Just a thought.Good Luck!!!
SOURCE: the transmission wont shift out of 2nd gear again.
i can answer part of your question. the front wheel speed sensors are for abs and trac control only. these will not affect the speedo your problem is some where else. sorry i have not had this prob yet good luck. you could have to replace the rear wheel speed sensor again. they are not that good. and after market are even worse.
SOURCE: 2001 dodge durango v8 5.9 trans won't shift unless i downshift
I have a 2000, there is a speed sensor located in top of the rear axel and I believe another on the tranny housing. Try the rear axel first.
SOURCE: ABS light & brake light on, problems with speedo working properly
The rear wheel speed sensor is the most common problem on those trucks and will do what you are talking about. It is located at the top of the rear axle in the center. It picks up it's signal from a tone ring on the diff inside! If a tranny input or output sensor is bad then the tranny won't shift properly!
SOURCE: 2003 dodge neon PO700 (tcm)
You dont have to pull the tranny to fix this. Some so called "experts" on here shouldnt be giving advice if they dont know. The solenoid pack is located in the front the transmission just below the air filter and in front of the input speed sensor you just replaced. Unbolt the connector with a 10mm socket then the bolts connecting to the tranny. Replace with a new one 140 bux or close(get a new one). Installation is vice versa. Easy fix for any person who is mechanically inclined. Always get a second or third opinion when asking a thousand dollar question on any website. Some people think they know....but they dont.
Start by checking the least expensive items:
Make sure you are not activating the O/D switch in the shift stick inadvertently.
Look at the display panel, if the "Eng" light is on, you must get the code and repair the affected item. If you have knock sensors and/or oxygen sensors malfunctions that may prevent the transmission from shifting to O/D.
Check the ground cables located in the engine compartment, especially the ones behind the air intake manifold. If they are loose or broken it affects the ECU (car computer) and causes the transmission to work erratically. If they become disconnected it may burn the ECU and shut down the car.
Now going to more profound mechanics, it could be a sticking shift solenoid valve, your RX300 transmission have five of those located were the transmission oil strainer (filter) is. It can also be an ECU malfunction and/or related to the wiring from the ECU to the transmission connectors.
Always start from the least expensive and recheck the obvious. Good luck.
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