No speed when driving? - Cars & Trucks

2.3 Gasoline: All wheel drive, manual 5 speed
3.2V6 gasoline, AWD, automatic 4 speed
2.3 TD All wheel drive, manual 5 speed
2.9 TD All wheel drive, manual 5 speed

It always starts out in first, it's a 3 speed automatic, that's what automatics do. they start out in first and at about 15-20 miles per hour , they shift to second gear, and when the speed is about 35-45 MPH, the transmission automatically shifts into third gear, or Drive.

Bigger automatics have 4 or more speeds. Till recently, 4 speeds were the norm, and fourth gear was often dubbed Overdrive, as it allowed the engine to run slower in 4th gear, than it had to maintain speed in 3rd gear, drive. It's good, it increases your mileage per gallon of gas, so you save that way, but like all things more complicated, they cost more to fix when something goes wrong.

All makes & models are different. You have to drive the car at several miles high speed, than several miles low speed & repeat the process. That usually covers most vehicle. But just drive normally at high & low speeds and soon enough you'll be good to go. Does not do the clock & radio for you. That your on your own.

I do not believe so . Code p0715 if that relates to your question refers to the turbine shaft speed(TSS) sensor-circuit malfunction===causes wiring--TSS sensor--ECM/TCM
The drive speed sensor is the sensor that works the speedo and sends impulses to the transmission control module to change gears in relation to the turbine speed sensor
This is how the TCM knows when to change ratios in the transmission because of the differences in recorded speeds of the engine torque convertor and the drive shaft

The problem is a gear internal failure the gear who drive the speed sensor is defect the is why you don't have speed sensor reading. There is a way you can verify that remove the speed sensor drive it with a drill check the dashboard you will see.

Acceleration is defined as a change in speed, either a negative acceleration (slowing down) or a positive acceleration (speeding up). If you have constant speed, you are not accelerating.---------------------------------------------------------------------------------------
Multi-Di@g Access

do you have the 4 speed over transmission, sounds like a slipping transmission

• D with no circle is just "Drive." this a lower geared drive and best used around time as it provides a better pick up and over all response.
• OD is "Over Drive" and used for cruising speeds ove 50+ MPH down the highway. Over Drive allows the vehicle to cruise at a more sustained speed with less engine speed and provides better fuel consumption.
• While you are in Drive going down the highway and your speed reaches 50 MPH just switch gears into Over Drive and you will notice your car "relax" a bit. Remember you don't want to switch from Over Drive to Drive until you get down to around 45MPH or it can be a little rough on your engine and transmission.

• Hope this helps and thank you for using FixYa.

Regards, Tony

Overdrive is for highway driving for better gas mileage. Good Luck