GM 89060444
Water Pump

Starting by removing the case side cover helps you reach the Oil Pump. Use a flat-bladed tool to detach electrical connectors from valves 31 5a/b/322/334/440 plus the tfp manual position switch 395 and temperature sensor 391 but keep the bolt 205 intact for holding the Oil Pump in place. Separate the Oil Pump bolts 206 and 207 from the Valve Body and withdraw the Oil Pump 200 from its housing 300. Reassemble the Oil Pump onto Valve Body (300) then bolt it in place using m6 x 1.0 bolts (206, 207). Tighten bolt (207) to 12 nm (106 inch lbs.) and bolt (206) to 16 nm (12 ft. Lbs.). Reconnect all electrical connections between the solenoid valves 31 5a, 31 5b, 322, 334, 440 plus the tfp manual position switch (395) and temperature sensor (391). Put the case side cover back in place afterwards.

Start replacing the oil pump only after you take off the case side cover. You should disconnect the electrical plugs from the solenoid valves (315A, 315B, 322, 334, and 440) TFP manual switch (395) and temperature sensor (391) using a flat tool. Keep bolt 205 in place and pull out bolts 206 and 207 to get oil pump (200) from valve body (300). Reinstall the oil pump (200) into the valve body (300) and fasten the M6 X 1.0 X 85 bolts (207) at 12 Nm (106 inch lbs.) and M6 X 1.0 X 95 bolts (206) at 16 Nm (12 ft. lbs.). Reattach all electrical connectors to the solenoid valves and control elements including 315A, 315B, 322, 334, and 440 as well as the TFP manual valve position switch (395) and temperature sensor (391). Then put back the case side cover.

Unscrew the case side cover without detaching its three bolts to access the Oil Pump. Disconnect Oil Pump bolts 205-207 before taking out the Oil Pump unit from the Valve Body assembly 300. Place the Oil Pump (200) back on the Valve Body (300) while following the fastener notice. Fasten the Oil Pump bolts (205-207) using a torque of 12 n.m (106 lb in) on the two m6 x 1.0 x 85 fasteners and 12 n.m (106 lb in) on the m6 x 1.0 x 95 fastener. Replace the case side cover during service and use a scan tool to reset the transmission adaptive pressure values which will erase stored information from all control modules. Accompanying settings changes may need to be reprogrammed at this time.

You should start the Oil Pump replacement by taking off the case side cover. Use a flat-bladed tool next to disconnect all the electrical connectors from the solenoid valves, the tfp switch, and the temperature sensor. Make sure you do not take out bolt (205) that holds the Oil Pump in place. Now, take out the Oil Pump bolts (206, 207) and lift the Oil Pump (200) from the Valve Body (300) so you can inspect it. Once you have the Oil Pump ready, put it back into the Valve Body (300) according to the fastener notice in service precautions. Put the Oil Pump bolts (206, 207) in place and tighten them; use 12 nm (106 inch lbs.) for the 207 bolts and 16 nm (12 ft. Lbs.) for the connect the electrical wiring to the solenoid valves (315A, 315B, 322, 334, and 440), the tfp manual valve position switch (395), and the temperature sensor (391), before putting on the case side cover.

To replace the Oil Pump, you should remove the case side cover first. Subsequently, use a flat-bladed tool to break the electrical connections with solenoid valves (315A/315B/322/334/440), the tfp manual valve position switch (395), and the temperature sensor (391) but not to remove the bolt (205) soldered to the Oil Pump. Then, unscrew Oil Pump bolts (206, 207) and unplug the Oil Pump (200) from the Valve Body (300). In the area of installation plant transfer pump (200), put it back against the Valve Body (300) under the fastener notice in the service precautions. Install bolts of Oil Pump bolts (206, 207) with tightening m6 x 1.0 x 85 bolts (207) to 12 nm (106 inch lbs.) and m6 x 1.0 x 95 bolts (206) to 16 nm (12 ft. Lbs.). Reconnect the electrical connectors of the solenoid valves (315A, 315B, 322, 334 and 440), the tfp manual valve position switch (395) and the temperature sensor (391) and then install the case side cover.

First remove the case side cover without interfering with the three bolts that fasten the Oil Pump. After detaching the Valve Body bolts 205-207 you can pull out the Oil Pump 200. Check the Oil Pump for condition and thoroughly clean it before setting it up. Reinstall the Oil Pump (200) onto Valve Body (300) but first follow the fastener notice to take necessary precautions. Secure the Oil Pump bolts 205-207 using m6 x 1.0 x 20 bolt at 8 nm torque and m6 x 1.0 x 85 bolt at 12 nm torque while tightening m6 x 1.0 x 95 bolt to 16 nm torque (11 ft. Lbs.). Put the case side cover back properly in place.

Tighten the M6 X 1.0 X 20 bolt to 8 Nm (70 inch lbs.), the M6 X 1.0 X 85 bolt to 12 Nm (106 inch lbs.), and the M6 X 1.0 X 95 bolt to 12 Nm (106 inch lbs.).

Place the oil pump (200) back onto the valve body (300) and install the oil pump bolts (206, 207), tightening the M6 X 1.0 X 85 bolts (207) to 12 Nm (106 inch lbs.) and the M6 X 1.0 X 95 bolts (206) to 16 Nm (12 ft. lbs.).