Hummer H3. Manual - part 837

Fig. 385: View Of Oil Pump Cover & Components
Courtesy of GENERAL MOTORS CORP.

1. Remove the oil pump reverse boost valve retaining ring (221).

2. Remove the reverse boost valve sleeve (220) and the reverse boost valve (219).

3. Remove the pressure regulator isolator spring (218) and the pressure regulator valve spring

(217).

4. Remove the pressure regulator valve (216).

Fig. 386: Identifying Converter Clutch Valve Components
Courtesy of GENERAL MOTORS CORP.

5. Remove the oil pump converter clutch valve retaining ring (222).

6. Remove the stop valve (223) and the converter clutch valve (224).

7. Remove the converter clutch valve (246).

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 387: Identifying Pressure Relief Bolt Valve components
Courtesy of GENERAL MOTORS CORP.

8. Remove the pressure relief bolt rivet (227).

9. Remove the pressure relief spring (229) and the pressure relief ball (228).

10. Remove the oil pump cover screen (232) and the oil pump cover screen seal (231).

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 388: View Of Stator Shaft Oil Seal Rings
Courtesy of GENERAL MOTORS CORP.

11. Remove the stator shaft oil seal rings (230).

OIL PUMP STATOR SHAFT BUSHING REPLACEMENT

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Tools Required

J 7004-A Universal Remover. See Special Tools.

J 8092 Universal Driver Handle - 3/4 in - 10

J 21465-01 Bushing Service Set. See Special Tools.

J 25019-14 Bushing Installer

J 34196-B Transmission Bushing Service Set. See Special Tools.

Removal Procedure

Fig. 389: Locating Pump Cover, Check Valve Retainer, Ball Assemblies & Cup
Plugs
Courtesy of GENERAL MOTORS CORP.

1. Inspect the pump cover, all check valve retainer and ball assemblies (237), cup plugs (235,

236) and orificed cup plugs (238, 240).

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3