Hummer H3. Manual — part 738

NO DRIVE IN DRIVE RANGE

No Drive in Drive Range

SHIFT LEVER INDICATES WRONG GEAR

Shift Lever Indicates Wrong Gear

NO GEAR SELECTION

No Gear Selection

Torque Converter (1)

The converter is not bolted to flex plate

Damaged pump drive

The stator roller clutch is not holding

Checks

Causes

Oil Pump (4)

Damaged vanes

Missing slide spring

Oil pump screen assembly plugged or damaged

Oil pump rotor guide omitted or misassembled

Oil pump rotor cracked or broken

Porosity in fluid pump

Oil pump surfaces not flat

Excessive oil pump rotor clearance

Forward Sprag Clutch
Assembly (642)

Damaged sprag

Worn or pitted inner race

Input (662) and Reaction
(681) Carrier

Damaged or worn gears

Checks

Causes

Manual Valve (340)

Not engaged to detent lever

Detent Roller Pin (63)

Missing or damaged

Detent Roller (63)

Broken or disconnected

Detent Spring (63)

Broken or disconnected

Manual Valve Link (89)

Loose or missing

Manual Shaft (84)

Flats not parallel

Indicator Linkage

Misadjusted

2007 Hummer H3

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

ENGINE STARTS IN GEAR

Engine Starts in Gear

DELAY IN DRIVE AND REVERSE

Delay in Drive and Reverse

LACK OF POWER OR HESITATION

Lack of Power or Hesitation

REPAIR INSTRUCTIONS - ON VEHICLE

Checks

Causes

Detent Lever (63)

Nut loose or missing

Manual Valve (84)

Stuck

Spacer Plate/Gaskets (47,
48, 52)

Blocked holes

Control Valve Body to Case
(60/103)

Blocked channels

Checks

Causes

Manual Valve (24)

Not engaged to detent lever

Transmission Range Switch Not working or mispositioned

Checks

Causes

Forward Clutch Piston
(630)

Cut or damaged piston seals

Low and Reverse Clutch
Piston (695)

Cut or damaged inner, outer or center clutch seals

Reverse Input Clutch Piston
Assembly (607)

Cut or damaged inner or outer clutch seals

Pump Cover (215)

Cut or damaged oil seal rings - stator shaft

Checks

Causes

Automatic Transmission
Fluid Pressure (TFP)
Manual Valve Position
Switch (69)

Incorrect TFP signal logic for current gear position. Refer to
Transmission Fluid Pressure Manual Valve Position
Switch Logic .

2007 Hummer H3

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

FLOOR SHIFT CONTROL KNOB REPLACEMENT

Fig. 29: Floor Shift Control Knob Replacement
Courtesy of GENERAL MOTORS CORP.

Floor Shift Control Knob Replacement

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .

Preliminary Procedures

1. Open the console compartment door.

2. Apply the parking brake.

3. Place the shift lever in NEUTRAL position.

NOTE:

Refer to Fastener Notice .

NOTE:

Do NOT pull or pry on the shift boot. This action may damage the shift boot retainers.

1

Shift Lever Handle Screw

Tighten: 4 N.m (35 lb in)

2007 Hummer H3

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

AUTOMATIC TRANSMISSION RANGE SELECTOR LEVER CABLE REPLACEMENT

Removal Procedure

1. Ensure the vehicle is in the park position.

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2

Upper Trim Plate Console-Refer to Front Floor Upper Console Trim Plate
Replacement (LHD w/Automatic Transmission) or Front Floor Upper
Console Trim Plate Replacement (LHD w/Manual Transmission) or
Front Floor Upper Console Trim Plate Replacement (RHD w/Automatic
Transmission) or Front Floor Upper Console Trim Plate Replacement
(RHD w/Manual Transmission)

3

Shift Lever Handle
Tip: The console shift bezel retainers must be released from the underside of the
console upper trim plate.

2007 Hummer H3

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