The lockup solenoid does not control OD shift. The lockup solenoid controls torque convertor lockup. Torque converter lockup isn't a gear at all, but a fuel saving function that kicks in when you are cruising, which is a clutch in the torque converter that locks down and overrides the fluid coupling so you dont loose engine engine torque due to the normal fluid coupling of the torque converter. In effect, it overrides the torque converter completely, and provides a direct drive from the engine to the input shaft of the transmission. TC lockup does occur in OD, but it is a separate function. OD is achieved in the AX4N when the OD band holds the front planetary sun gear stationary. This is done by the OD servo and piston assembly, when fluid is directed there through a valve in the valve body. You could have a problem in any of those areas causing you not to have OD.
In the transmission.
A transmission that is not engaging fully when in drive might need a new shift solenoid. There is also a chance that a band is stretched or broken inside the transmission.
The transmission solenoids are inside the transmission, on the valve body.
There are four. Starter solenoid, is built on the starter. Governor pressure solenoid, overdrive solenoid, and torque converter solenoid are on the valve body inside the transmission.There are four. Starter solenoid, is built on the starter. Governor pressure solenoid, overdrive solenoid, and torque converter solenoid are on the valve body inside the transmission.
Maybe, but the transmission may not be able to shift gears.
If you are referring to the Torque Solenoid on the Transmission then look on the upper side of the transmission and you will find a blue plug assembly with two sires. If you have a problem with your TCC solenoid (the engine stops when you use the break while in drive) then removing the wire will keep the engine going. To fix the problem you need to open the side of the transmission cap and replace the solenoid assembly (Solenoid assembly costs $40 at the dealer). you would need to remove a Chassis cover behind the passenger wheel to reach the transmission cover though.
In the transmission, on the side of the valve body.
Parking brake not released, bad torque converter, bad transmission shift solenoid or bad transmission in general, broken shift cable not engaging the transmission.
Your transmission is "sticking" sometimes a fluid and filter change can resolve this problem for a short time however is this does not help there is a solenoid in the trans that needs replacing any transmission shop can preform this solenoid swap relatively cheap and most have the capability to diagnose this problem for free
The transmission temperature sensor is part of the overdrive solenoid, inside the transmission, on the valve body.
A vehicle moves forward when in drive due to the transmission transferring power from the engine to the wheels. Possible causes for a vehicle not moving forward in drive could include low transmission fluid, a faulty transmission solenoid, a defective torque converter, or a worn-out clutch (for manual transmissions).
where is the over drive solenoid located on a 1989 Chevy Corsica