The torque converter on your 1998 Z71 transmission may not lock in due to several potential issues, including a faulty torque converter clutch solenoid, low Transmission Fluid levels, or a malfunctioning engine control unit (ECU). Additionally, problems with the wiring or connectors related to the torque converter could prevent it from engaging properly. A clogged transmission filter or internal transmission issues may also contribute to this problem. It's advisable to have the transmission diagnosed by a professional to pinpoint the exact cause.
If you have a torque converter lock all the time problem when hot replace solenoid under driver side cover of transmission .
The lock up clutch is inside the torque converter. The solenoid is on the valve body in the transmission. The wiring runs from the engine computer to the transmission.
The automatic has one for the lock up torque converter
the overdrive transmission in those trucks are 700R4 with lock up torque converter
If the car has an automatic transmission, then it might have lock up torque converter. If the torque converter is engaged while the engine is at idle, then the engine will stall. Bring the vehicle to reputable transmission repair facility and have the replace the torque converter clutch solenoid.
If yours is on constantly or won't come on there are several possibilities. There is a relay, usually inside the transmission, that controls the lock-up solenoid inside the torque converter. If the lock-up won't release, the problem is often that relay. The good part is, it's a lot less expensive than a transmission rebuild and if you can find a reputable transmission shop (that's the bad part, they're difficult to find) they will replace the faulty relay at a reasonable price. On the other hand, it can also be the torque converter, in which case the transmission has to come out and they'll need to replace the torque converter. Then you'll get the speech, "While it's out it's a good idea to..." If it WON'T lock up when going down the road, it can be a sensor, the relay or, yes, the torque converter.
It is behind the motor and in front of the transmission.
It can be the lock up on the torque converter not functioning properly. It can also be low of fluid. Check the transmission fluid level. If the fluid level is good, you need to seek professional help.
Yes, a lock-up torque converter is beneficial for a 700R4 transmission as it improves fuel efficiency and reduces engine RPM at highway speeds. Locking the converter eliminates slip between the engine and transmission, resulting in better power transfer. However, while it is not strictly necessary for the converter to lock up for the transmission to function, not having a lock-up feature can lead to decreased performance and increased fuel consumption.
Transmission Lock-Up Control System Fault. Can be caused by:Low transmission fluid levelDirty transmission fluidFaulty torque converter cluth solenoid valveTorque converter clutch solenoid valve harness open or shortedTorque converter clutch solenoid valve circuit poor electrical connectionCan also be overheating torque converter due to insufficent flow to the torque converter release cirsuit.When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
4 speed with a lock up torque converter
In a 1999 Pontiac Grand Am, the torque converter lock-up electric plug is typically located near the transmission. It is connected to the transmission harness, often found on the driver's side of the transmission, close to the bellhousing. If you're having trouble locating it, refer to your vehicle's service manual for specific diagrams and further details.