Hummer H2. Manual - part 88

CLUTCH SLAVE CYLINDERS (CONVENTIONAL OR EXTERNAL) 

Clutch Slave Cylinders (Conventional or External) 

COMPANION FLANGES 

See Yokes and Slip Yokes.  

CONNECTORS 

Condition 

Code 

Procedure 

Bearing rough when rotated as an assembly 

B 

Require replacement. 

Bearing seized 

A 

Require replacement. 

Bleeder pipe leaks 

A 

Require repair or replacement. 

Carrier assembly worn, affecting performance 

A 

Require replacement. 

Collar broken 

A 

Require replacement. 

Cracked 

A 

Require replacement. 

Housing leaks 

A 

Require replacement. 

Inoperative 

A 

Require replacement. 

Release binding 

A 

Require replacement. 

Spring broken 

A 

Require replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Worn, affecting performance 

A 

Require replacement. 

Condition 

Code 

Procedure 

Binding 

A 

Require repair or replacement. 

Bleeder port damaged (not repairable) 

A 

Require replacement. See note below. 

NOTE: Only required if the hydraulic system must be opened. 

Bleeder port damaged (repairable) 

A 

Require repair. See note below. 

NOTE: Only required if the hydraulic system must be opened. 

Bleeder screw broken off in slave 
cylinder 

A 

Require replacement. See note below. 

NOTE: Only required if the hydraulic system must be opened. 

Bleeder screw seized 

A 

Require replacement. See note below. 

NOTE: Seized is defined as a bleeder screw that cannot be removed after a practical 
attempt at removing it has been made. 

Bore corroded (pitted) 

B 

Require replacement. 

Bore grooved 

A 

Require replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

See Wiring Harnesses and Connectors.  

COOLER BYPASS VALVES 

Cooler Bypass Valves 

COOLER LINES 

Cooler Lines 

Condition 

Code 

Procedure 

Inoperative 

A 

Require replacement. 

Installed incorrectly 

A 

Require repair. 

Leaking 

A 

Require repair or replacement. 

Restricted 

A 

Require repair or replacement. 

Condition 

Code 

Procedure 

Abrasion damage, affecting structural integrity 

A 

Require repair or replacement. 

Abrasion damage, not affecting structural 
integrity 

No service suggested or 

required. 

Application incorrect 

B 

Require replacement. 

Attaching hardware broken 

A 

Require repair or replacement of 

hardware. 

Attaching hardware missing 

C 

Require replacement of 

hardware. 

Attaching hardware not functioning 

A 

Require repair or replacement of 

hardware. 

Clamp corroded, not reusable 

1 

Suggest replacement. See note 

below. 

NOTE: If clamp removed, require replacement 

Connected incorrectly 

A 

Require repair. 

Corroded, affecting structural integrity 

A 

Require replacement. 

Corroded, not affecting structural integrity 

No service suggested or 

required. 

Cracked 

A 

Require repair or replacement. 

Fitting type incorrect (such as compression 
fitting) 

B 

Require replacement. 

Flange leaking 

A 

Require repair or replacement. 

Insufficient clamping force, allowing hose to 
leak 

A 

Require repair or replacement. 

Leaking 

A 

Require repair or replacement. 

Melted 

1 

Suggest repair or replacement. 

Missing 

C 

Require replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

COOLERS 

See Transmission Coolers.  

CV JOINTS 

CV Joints 

Outer covering damaged to the extent that the 
inner fabric is visible 

A 

Require replacement. 

Protective sleeves damaged 

2 

Suggest replacement of sleeves. 

Protective sleeves missing 

C 

Require replacement of sleeves. 

Restricted, affecting performance 

A 

Require repair or replacement. 

Routed incorrectly 

B 

Require repair. 

Swollen 

1 

Suggest replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Type incorrect 

1 

Suggest repair or replacement. 

Condition 

Code 

Procedure 

Bearing, bushing or seal surface worn, 
affecting performance 

A 

Require repair or replacement. 

Boot clamp broken 

A 

Require repair or replacement of 

clamp. 

Boot clamp loose 

A 

Require repair or replacement of 

clamp. 

Boot clamp missing 

C 

Require repair or replacement of 

clamp. 

Boot leaking 

A 

Require replacement of CV boot. 

See note below. 

NOTE: Further inspection of joint required before replacing boot. 

Boot surface cracked, not leaking 

2 

Suggest replacement of CV boot. 

Cage broken 

A 

Require repair or replacement of 

CV joint. 

Housing damaged to the extent that it no 
longer performs its intended function 

A 

Require repair or replacement of 

CV joint. See note below. 

NOTE: Housing assembly may appear blue in color from normal manufacturing process 
of heat-treating the housing. 

Housing worn to the extent that it no longer 
performs its intended function 

A 

Require repair or replacement of 

CV joint. (See note below. 

NOTE: Housing assembly may appear blue in color from normal manufacturing process 
of heat-treating the housing. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION

  

DIP STICK TUBES 

Dip Stick Tubes 

DIP STICKS (FLUID LEVEL INDICATORS) 

Dip Sticks (Fluid Level Indicators) 

DOWEL PINS, GUIDES, AND PILOT HOLES 

Dowel Pins, Guides, and Pilot Holes 

Holes elongated 

A 

Require replacement. 

Internal parts binding 

A 

Require repair or replacement. 

Internal parts worn 

A 

Require repair or replacement. 

Lubricant missing 

C 

Require cleaning, inspection, and 

repacking of CV joint. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Condition 

Code 

Procedure 

Broken 

A 

Require repair or replacement. 

Checkball missing 

C 

Suggest repair or replacement. 

Cracked 

A 

Require repair or replacement. 

Hold down bracket broken 

A 

Require repair or replacement. 

Hold down bracket missing 

C 

Require replacement. 

Leaking 

A 

Require repair or replacement. 

Missing 

C 

Require replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require replacement. 

Condition 

Code 

Procedure 

Application incorrect 

B 

Require replacement. 

Broken 

A 

Require replacement. 

Compressed 

A 

Require repair or replacement. 

Missing 

C 

Require replacement. 

Modified 

A 

Require replacement. 

Stretched 

A 

Require repair or replacement. 

Condition 

Code 

Procedure 

Application incorrect 

B 

Require repair or 

replacement. 

Cracked 

A 

Require repair or 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards DRIVE TRAIN AND TRANSMISSION