Hummer H2. Manual — part 2635

5. DO NOT install the transmission fluid indicator stop bracket and bolt at this time. Install but DO NOT

tighten the control valve body bolts which retain only the valve body directly. See Fig. 73 . Each
numbered bolt location corresponds to a specific bolt size and length, as indicated by the following:

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M6 X 1.0 X 65.0 (1).

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M6 X 1.0 X 54.4 (2).

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M6 X 1.0 X 47.5 (3).

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M6 X 1.0 X 35.0 (4).

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M8 X 1.0 X 20.0 (5).

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M6 X 1.0 X 12.0 (6).

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M6 X 1.0 X 18.0 (7).

6. Install the manual detent spring.

7. Install but DO NOT tighten the manual detent spring retaining bolt. See Fig. 68 .

8. Install the transmission fluid pressure switch. See Fig. 66 .

9. Install but DO NOT tighten the control valve body bolts which retain the transmission fluid pressure

switch to the control valve body. See Fig. 66 .

10. Tighten the control valve body bolts in a spiral pattern starting from the center, as indicated by the

arrows. See Fig. 73 . Tighten the control valve body bolts (in sequence) to specification. See TORQUE
SPECIFICATIONS .

11. Ensure the manual detent spring is aligned properly with the detent lever. Tighten the manual detent

spring bolt to specification. See TORQUE SPECIFICATIONS .

12. Install the TCC solenoid with a new "O" ring seal to the valve body.

13. Install the TCC solenoid bolts. Tighten the TCC solenoid retaining bolts to specification. See TORQUE

SPECIFICATIONS .

14. Install the internal wiring harness to the valve body. The internal wiring harness has a tab (1) on the edge

of the conduit. See Fig. 74 .

15. Place the tab between the valve body and the pressure switch in the location shown (2). See . Press the

harness into position on the valve body bolt bosses (1, 3). See Fig. 75 .

16. Install the TCC PWM solenoid (1) to the control valve body. See Fig. 48 . Install the TCC PWM solenoid

retainer (2).

17. Install the transmission fluid indicator stop bracket (1) and bolt (2). See Fig. 64 . Tighten the transmission

fluid indicator stop bracket bolt to specification. See TORQUE SPECIFICATIONS .

18. Connect the internal wiring harness electrical connectors to the following components:

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The transmission fluid pressure manual valve position switch. See Fig. 28 .

NOTE:

When installing bolts throughout this procedure, be sure to use the
correct bolt size and length in the correct location as specified.

NOTE:

Torque valve body bolts in a spiral pattern starting from the center. If the
bolts are torqued at random, valve bores may be distorted and inhibit
valve operation.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

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1-2 shift control solenoid.

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2-3 shift control solenoid.

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Pressure control solenoid.

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TCC PWM solenoid.

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3-2 shift control solenoid.

19. Install the transmission oil pan and filter. See DRAINING & REFILLING under LUBRICATION.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 70: Installing Check Balls In Valve Body
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 71: Installing Manual Valve To Detent Lever
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2