Transmission Replacement (With 6.6L Engine)ww2.justanswer.com/uploads/TR/tracker40/2014-08-20_122325_123.pdfAug 20, 2014 · 2006 Chevrolet Silverado 6.6L Eng 2500 HD ... Rotate the

Transmission Replacement (With 6.6L Engine)

Tools Required

J 21366 Converter Holding Strap

J 44257 Connector Removal Tool. See Special Tools .

Removal Procedure

IMPORTANT: If replacing a failed transmission, the

"Fast Learn" (adapt) procedure must be performed.

This can be done in one step using a scan tool. If this

procedure is not done, the transmission control

module's (TCM's) adaptive values will still be at the

settings that it learned for the old transmission, and will

be in slow adaptive mode. Under these conditions, it

would take an unacceptably long time for the adaptive

values to converge to levels suitable for the new

transmission.

Disconnect both of the negative battery cables. Refer to Battery Negative Cable Disconnect/Connect

Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary

Battery) in Engine Electrical.

1.

Remove the transmission fluid level indicator.2.

Raise the vehicle until the right front wheel and tire can be removed. Refer to Lifting and Jacking the

Vehicle in General Information.

3.

Remove the right front wheel and tire.4.

Remove the right front wheel house inner panel retainers (2).5.

2006 Chevrolet Silverado 6.6L Eng 2500 HD

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Disconnect any harness retainers attached to the inner panel.6.

Remove the inner panel (1).7.

Remove the positive battery cable nut and cable from the starter.8.

Fig 1: View Of Wheelhouse Panel & Push-In Retainers

Courtesy of GENERAL MOTORS CORP.


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Remove the solenoid nut and wire from the starter.9.

Remove the starter motor bolts and reposition the starter.10.

Fig 2: Removing Positive Battery Cable From Starter (6.6L)



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Remove the engine protection shield bolts and shield.11.

Fig 3: Removing Starter Motor & Bolts



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IMPORTANT: Rotate the engine clockwise

ONLY, rotating the engine counterclockwise may

loosen the crankshaft balancer bolt.

Rotate the engine clockwise, using the crankshaft bolt in order to access the torque converter bolts

thru the starter opening. Have an assistant rotate the engine while aligning the bolts.

12.

Remove the torque converter bolts.13.

Fig 4: Identifying Engine Shield And Retaining Bolts



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Completely raise the vehicle.14.

Drain the transmission fluid.15.

Disconnect the shift cable from the selector lever ball stud (5) and remove the cable from the bracket

(3).

16.

Fig 5: Removing Torque Convertor Bolt



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Remove the shift cable bracket bolts and bracket (2) from the transmission.17.

Fig 6: Disconnecting Shift Cable From Selector Lever Ball Stud (With 6.6L Engine)



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Reposition the bracket with the cable attached off to the side.18.

Remove the fuel line retainer (1) bolts on the left side of the transmission.19.

Fig 7: Removing Shift Cable Bracket Bolts And Bracket (With 6.6L Engine)



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Remove the fuel line bracket nut from the converter housing stud.20.

Fig 8: Removing Fuel Line Retainer Bolts (With 6.6L Engine)



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Disconnect the turbine speed sensor (1) and input speed sensor (2) electrical connectors.21.

Fig 9: Removing Fuel Line Bracket Nut (With 6.6L Engine)



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Disconnect the output speed sensor (3) electrical connector. If the vehicle is equipped with 4 wheel

drive (4WD), the output speed sensor is located on the transfer case and will be disconnected later.

22.

Disconnect the transmission main electrical connector. J 44257 may be used, but is not required.

See Special Tools .

23.

Fig 10: Disconnecting Speed Sensor Electrical Connectors (With 6.6L Engine)



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Disconnect the park/neutral position (PNP) switch electrical connector.24.

Fig 11: Disconnecting External Wiring Harness From Transmission Main Connector



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Remove the exhaust hanger bolts and reposition the hanger.25.

If the vehicle is a 2 wheel drive (2WD), remove the propeller shaft. Refer to Propeller Shaft

Replacement - One Piece or Propeller Shaft Replacement - Two Piece in Propeller Shaft.

26.

Support the transmission with a transmission jack.27.

If the vehicle is a 2WD, remove the transmission mount nuts.28.

Fig 12: Removing Exhaust Hanger



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If the vehicle is a 2WD, remove the transmission support bracket bolts.29.

Fig 13: Identifying Transmission Mount Nuts



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If the vehicle is a 2WD, remove the transmission support bolts and nuts.30.

Remove the transmission mount bolts (1).31.

Fig 14: Identifying Crossmember & Bolts



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Remove the transmission mount.32.

If the vehicle is equipped with 4WD, remove the transfer case.

If equipped with a NVG 261-NP2, refer to Transfer Case Assembly Replacement in

Driveline/Axle.

1.


Driveline/Axle.

2.

33.

Reposition any wiring harness branches out of the way.34.

Secure a safety chain around the transmission. Use care not to overlap any wiring, fuel lines, or

other related components.

35.

Fig 15: Locating Transmission Mount Bolts



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Disconnect the transmission oil cooler lines (1, 2) from the transmission.36.

Fig 16: Securing Safety Chain Around Transmission



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Plug the transmission oil cooler line fittings in the transmission case, if necessary.37.

If the vehicle is equipped with a power take off (PTO) unit, disconnect and/or remove any necessary

components to facilitate transmission removal.

38.

Remove the transmission fill tube nuts from the converter housing studs.39.

Fig 17: Disconnecting Transmission Oil Cooler Lines From Transmission



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Remove the wire harness/vent tube bracket nut from the converter housing stud and reposition the

bracket.

40.

Fig 18: View Of Fill Tube To Bellhousing Nuts



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Remove the remaining converter housing bolts and studs.41.

Fig 19: Removing Wire Harness/Vent Tube Bracket Nut (With 6.6L Engine)



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Separate the transmission from the engine.42.

Install J 21366 to the converter housing in order to keep the torque converter from sliding off of the

turbine shaft.

43.

Fig 20: Removing Transmission To Engine Stud & Bolts



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Carefully lower the transmission from the vehicle while simultaneously removing the fill tube.44.

Remove the J 21366 .45.

Installation Procedure

Install J 21366 to the converter housing in order to keep the torque converter from sliding off of the

turbine shaft.

1.

Fig 21: Installing J 21366 To The Converter Housing (With 6.6L Engine)



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Raise the transmission into place while simultaneously installing the transmission fill tube.2.

Remove the J 21366 3.

IMPORTANT: Do not install the transmission

by drawing it to the engine using the studs and

bolts.

NOTE: Refer to Fastener Notice .

Align the transmission with the engine using the alignment dowels located at the rear of the engine.4.

Fig 22: Installing J 21366 To The Converter Housing (With 6.6L Engine)



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IMPORTANT: Ensure that the torque

converter can be rotated before tightening the

bolts and studs.

Install the converter housing bolts and studs.

Tighten: Tighten the bolts/studs to 50 N.m (37 lb ft).

5.

Install the wire harness/vent tube bracket and nut to the converter housing stud.6.

Fig 23: Installing Transmission To Engine Stud & Bolts



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Tighten: Tighten the nut to 18 N.m (13 lb ft).

Install the transmission fill tube and nuts to the converter housing studs.

Tighten: Tighten the nuts to 18 N.m (13 lb ft).

7.

Fig 24: Installing Wire Harness/Vent Tube Bracket Nut



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If the vehicle is equipped with a PTO unit, connect and/or install the components at this time.8.

Remove the safety chain from around the transmission.9.

Fig 25: View Of Fill Tube To Bellhousing Nuts



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Install the transfer case, if the vehicle is equipped with 4WD.


Driveline/Axle.

1.


Driveline/Axle.

2.

10.

If the vehicle is a 2WD, install the transmission mount.11.

Fig 26: Removing Safety Chain Around Transmission (With 6.6L Engine)



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If the vehicle is a 2WD, install the transmission mount bolts (1).

Tighten: Tighten the bolts to 50 N.m (37 lb ft).

12.

Install the transmission support.13.

Fig 27: Locating Transmission Mount Bolts



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If the vehicle is a 2WD, install the transmission support bolts and nuts.14.

If the vehicle is a 2WD, install the transmission support bracket bolts.

Tighten: Tighten the bolts/nuts to 95 N.m (70 lb ft).

15.

If the vehicle is a 2WD, install the transmission mount nuts.16.

Fig 28: Identifying Crossmember & Bolts



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Tighten: Tighten the nuts to 40 N.m (30 lb ft).

Remove the transmission jack.17.

If the vehicle is a 2WD, install the propeller shaft. Refer to Propeller Shaft Replacement - One Piece

orPropeller Shaft Replacement - Two Piece in Propeller Shaft.

18.

Position the exhaust hanger and install the bolts.

Tighten: Tighten the bolts to 12 N.m (106 lb in).

19.

Fig 29: Identifying Transmission Mount Nuts



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Position the wiring harness branches.20.

Connect the PNP switch electrical connectors.21.

Connect the transmission main electrical connector (2).22.

Fig 30: Installing Exhaust Pipe Hanger Bracket



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Connect the output speed sensor (3) electrical connector. If the vehicle is equipped with 4WD, the

output speed sensor is located on the transfer case and has been connected during the transfer

case installation.

23.

Fig 31: Connecting Transmission Main Electrical Connector (With 6.6L Engine)



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Connect the turbine speed sensor (1) and the input speed sensor (2) electrical connectors.24.

Install the fuel line bracket and nut to the transmission converter housing stud.

Tighten: Tighten the nut to 18 N.m (13 lb ft).

25.

Fig 32: Disconnecting Turbine Speed Sensor And Input Speed Sensor Electrical Connectors (With

6.6L Engine)



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Install the fuel line retainer (1) and bolts to the left side of the transmission.

Tighten: Tighten the bolts to 2.5 N.m (22 lb in).

26.

Fig 33: Installing Fuel Line Bracket Nut (With 6.6L Engine)



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Install the shift cable bracket (2) and bolts to the transmission.


27.

Fig 34: Installing Fuel Line Retainer Bolts (With 6.6L Engine)



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Install the shift cable to the bracket (3) and the selector lever ball stud (5).28.

Fig 35: Installing Shift Cable Bracket Bolts And Bracket (With 6.6L Engine)



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Remove the access hole cover (1) on the converter housing in order to rotate the converter and align

the first torque converter bolt.

29.

Fig 36: Connecting Shift Cable To Selector Lever Ball Stud



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If reusing the torque converter bolts, clean the bolt threads and apply Loctite 242 GM P/N 12345382

(Canadian P/N 10953489), or equivalent to the threads prior to installation.

30.

Fig 37: Removing Access Hole Cover On Converter Housing (With 6.6L Engine)



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Install the torque converter bolts.


31.

Install the converter housing access hole cover.32.

Install the engine protection shield and bolts.


33.

Fig 38: Installing Torque Convertor Bolt



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Position and install the starter motor bolts.


34.

Fig 39: Identifying Engine Shield And Retaining Bolts



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Install the solenoid wire and nut to the starter.

Tighten: Tighten the nut to 3.4 N.m (30 lb in).

35.

Fig 40: Installing Starter Motor



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Install the positive battery cable and nut to the starter.

Tighten: Tighten the nut to 9 N.m (80 lb in).

36.

Install the inner panel (1).37.

Fig 41: Installing Solenoid Wire And Positive Battery Cable To Starter



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Connect any harness retainers to the inner panel.38.

Install the right front wheel house inner panel retainers (2).39.

Install the right front wheel and tire.40.

Remove the plugs from the transmission oil cooler line fittings in the transmission case, if necessary.41.

Fig 42: View Of Wheelhouse Panel & Push-In Retainers



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Flush the transmission oil cooler and lines, if necessary. Refer to Automatic Transmission Oil Cooler

Flushing and Flow Test .

42.

Connect the transmission oil cooler lines (1, 2) to the transmission.43.

Lower the vehicle.44.

Connect both negative battery cables. Refer to Battery Negative Cable Disconnect/Connect

Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary

Battery) .

45.

Fill the transmission with new transmission fluid.46.

Install the transmission fluid level indicator.47.

If a replacement transmission was installed, perform the "Fast Learn" procedure using a scan tool.

Refer to Fast Learn Procedure .

48.

Fig 43: Connecting Transmission Oil Cooler Lines To Transmission (With 6.6L Engine)



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Documents

Transmission Replacement (With 6.6L Engine)ww2.justanswer.com/uploads/TR/tracker40/2014-08-20_122325_123.pdfAug 20, 2014 · 2006 Chevrolet Silverado 6.6L Eng 2500 HD ... Rotate the