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replace engine temp sensor. trans won't shift into o/d until engine has warmed up. there are two sensors, one for the temp guage and one for the computer.
Your transmission might automatically shift out of overdrive while driving on the interstate because of low transmission fluid. This issue might also occur because of a bad transmission sensor or overdrive sensor.
If your 1997 Chevy diesel will not shift into overdrive, you might have an issue with a transmission sensor. Some of these vehicles have several sensors that must engage in order to shift.
yes it can but also check the speed sensor if your vehicle is equiped with one.
Trouble code P0705 means: Transmission Range Sensor Circuit (PRNDL Input) Need to replace the sensor
My friends car did the same exact thing. It could be your transmission sensor. I am not exactly sure what the sensor is called but it has to do with the way it shifts. Overdrive sensor maybe?
It does not have a 3-4 shift solenoid. It has a 1-2 and 2-3 only. What you are calling 4 is overdrive, no solenoid.
I was told that it is the temp sensor. The car needs to be at 150 degrees. I am working on the same problem.
Your speed sensor is faulty replace it...
A common problem with alot of Volvo's is the Overdrive. Basically the high gear. If it wont shift into high gear it means that the "Overdrive" is activated and won't shift into high gear. You need to see if there is a little upwards pointing arrow on your Dashboard Cluster. If there is then you need to replace your Overdrive Solenoid.
it controls the overdrive function and shift timing relative to speed
The coolant temperature sensor, which is located behind the engine block near the firewall, senses when the coolant temperature reaches a predetermined temperature so that the transmission can shift into overdrive. This sensor and the hose preceding it can get gunked up with cystallization from the coolant (red Toyota coolant is notorious for doing this) and can prevent proper flow to the sensor i.e. your transmission may take longer to shift into overdrive or may not shift at all depending on how constricted the hose is.