Ford CT4Z-7000-NRM Automatic Transmission Assembly

Some of the common problems may include leakage of hydraulic fluids, mechanical jamming or electrical faults in the circuitry hence one has to determine whether the problem is electrical mechanical or hydraulic before effecting any repair. Diagnosis involves understanding of how the transaxle functions and is put together besides requiring the use of some diagnostic equipment, problems which relate to the automatic transaxle must therefore be diagnosed by a dealer service department or some other competent service center. Also, a faulty transaxle should not be removed until the vehicle has been taken to an experienced technician who has the tools for diagnosing the problem as troubleshooting involves the transaxle being fitted in the car.

To remove the components, start by disconnecting the cables from the battery and removing the battery and tray. Drain the cooling system and remove the radiator hoses, followed by the charge air cooler pipes on turbocharged models. Next, take out the air filter housing and duct, then remove the housing bracket bolts and bracket. Loosen the hose clamp and detach the duct or pipe to the throttle body. For 2010 and earlier models, remove the nut securing the transaxle fill tube, rotate it counterclockwise, and pull it from the transaxle if equipped. Disconnect the Transaxle Control Module harness electrical connector at the transmission range sensor, along with the ground straps and bolts holding the electrical harness to the transaxle. Detach the shift cable from the transaxle shift control arm and remove the bolts securing the transaxle cable mount. Remove the transaxle front and rear wire harness brackets, then disconnect the electrical connectors for the Vehicle Speed Sensor and TCM. Attach an engine support fixture to the lifting hook at the transaxle end of the engine, or use a bolt to secure the support fixture chain to a hole at the end of the cylinder head. For 2010 and earlier V6 engines, remove the upper intake manifold first. Remove the four upper engine-to-transmission mounting bolts, loosen the driveaxle/hub nuts and wheel lug nuts, raise the front of the vehicle, and support it securely on jackstands or a lift before removing the wheels. Disconnect the shift cable from the transaxle and remove the bolts securing the shift cable brackets. Unbolt the power steering hose bracket and retainers if equipped, then disconnect the flexible exhaust pipe sections and the Y-pipe, removing the right-side exhaust heat shield and catalytic converter. Remove the heat shield over the roll restrictor and unbolt it, then remove the driveaxles. Take off the splash shields from the left and right fenderwells, place a block of wood above the lower control arm to protect the outer CV joint on the left side, and remove the left steering knuckle. Remove the starter, and for AWD models, take out the rear driveshaft and wire it aside. Drain the transaxle lubricant, disconnect and plug the transmission fluid hoses, and for 2019 models, remove the transaxle fluid warmer and its bracket fasteners to access the top transaxle bolts. Remove the bolts securing the transaxle support insulator brackets, then take off the brackets. If working on an AWD model, remove the transfer case. Support the subframe and remove the subframe-to-lower bumper nuts from each side, followed by the stabilizer bar-to-subframe bolts and steering gear-to-subframe bolts. Remove the subframe support brackets bolts and brackets, then take out the front suspension subframe. Support the transaxle with a jack, preferably a transmission jack, and use safety chains to steady it. Disconnect the oxygen sensors, remove the torque converter cover, and mark the relationship of the torque converter to the driveplate before removing the converter mounting nuts through the starter opening. Remove the remaining bolts securing the transaxle to the engine, then move the transaxle away from the engine to disengage it from the engine block dowel pins, carefully lowering the transmission jack to the floor to remove the transaxle. For installation, reverse the removal steps while ensuring that the drive tangs at the center of the torque converter hub engage with the recesses in the automatic transaxle fluid pump inner gear. Confirm engagement by turning the torque converter while pushing it towards the transaxle. Ensure the matchmarks made on the torque converter and driveplate line up, install all driveplate-to-torque converter nuts before tightening, and tighten them to the specified torque. Tighten the transaxle mounting bolts and suspension crossmember mounting bolts to the specified torque values, as well as the driveaxle/hub nuts and wheel lug nuts. Fill the transaxle with the correct type and amount of automatic transmission fluid, and adjust the shift cable upon completion.