Hummer H2. Manual — part 117

DECEL VALVES

See Aspirator, Check, and Decel Valves.

DEFLECTORS

See Shrouds, Baffles, and Deflectors.

DIP STICKS AND TUBES

Dip Sticks and Tubes

DIP STICK TUBES

See Dip Sticks and Tubes.

DISTRIBUTOR ADVANCES AND RETARDERS (MECHANICAL AND VACUUM)

Terminal corroded, not affecting
performance

2

Suggest repair or replacement.

Terminal loose, affecting
performance

B

Require repair or replacement.

Terminal loose, not affecting
performance

1

Suggest repair or replacement.

Threads damaged

A

Require repair or replacement.

Threads stripped (threads missing)

A

Require replacement.

Wire lead conductors exposed

B

Require repair or replacement.

Wire lead corroded

A

Require repair or replacement.

Wire lead open

A

Require repair or replacement.

Wire lead shorted

A

Require repair or replacement.

Condition

Code

Procedure

Application incorrect

B

Require replacement.

Bent

2

Suggest repair or

replacement.

Broken, affecting performance (for example, fuel
mixture)

A

Require repair or

replacement.

Broken, not affecting performance

2

Suggest repair or

replacement.

Leaking, affecting performance (for example, fuel
mixture)

A

Require repair or

replacement.

Leaking, not affecting performance

2

Suggest repair or

replacement.

Missing

C

Require replacement.

1998 Chevrolet Pickup C1500

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

Distributor Advances and Retarders (Mechanical and Vacuum)

DISTRIBUTOR BOOTS AND SHIELDS

Distributor Boots and Shields

DISTRIBUTOR CAPS

Distributor Caps

Condition

Code

Procedure

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.

Binding

A

Require repair or replacement.

Inoperative

A

Require repair or replacement. See note

below.

NOTE: Inoperative includes intermittent operation.

Leaking

A

Require replacement.

Out of specification

B

Require repair or replacement.

Condition

Code

Procedure

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.

Deteriorated

A

Require replacement.

Leaking

A

Require replacement.

Missing

A

Require replacement.

Torn

A

Require replacement.

Condition

Code

Procedure

Application incorrect

B

Require replacement.

Arcing

A

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.

Burned

A

Require replacement.

Carbon button missing

A

Require replacement.

Carbon button worn, affecting
performance

A

Require replacement.

Carbon button worn, not affecting

1

Suggest replacement.

1998 Chevrolet Pickup C1500

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

DISTRIBUTOR RETARDERS (MECHANICAL AND VACUUM)

See Distributor Advances and Retarders (Mechanical and Vacuum).

DISTRIBUTOR ROTORS

Distributor Rotors

DISTRIBUTOR SHIELDS

performance

Carbon-tracked

A

Require replacement.

Cracked

A

Require replacement.

Loose

2

Suggest repair or replacement.

Terminal broken

A

Require repair or replacement.

Terminal burned, affecting performance

A

Require repair or replacement. See note

below.

NOTE: Determine cause and correct prior to repair or replacement of part.

Terminal burned, not affecting
performance

2

Suggest repair or replacement.

Terminal corroded, affecting
performance

A

Require repair or replacement.

Terminal corroded, not affecting
performance

2

Suggest repair or replacement.

Terminal eroded, affecting performance

A

Require repair or replacement.

Terminal eroded, not affecting
performance

No service suggested or required.

Terminal loose, affecting performance

B

Require repair or replacement.

Terminal loose, not affecting
performance

1

Suggest repair or replacement.

Condition

Code

Procedure

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.

Carbon-tracked

A

Require replacement.

Contact burned

A

Require replacement.

Corroded

1

Suggest replacement.

Eroded

1

Suggest replacement.

Loose

A

Require repair or replacement.

Out of specification

B

Require replacement.

1998 Chevrolet Pickup C1500

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

See Distributor Boots and Shields.

DISTRIBUTORS

Distributors

EARLY FUEL EVAPORATION VALVES (HEAT RISER ASSEMBLIES)

Early Fuel Evaporation Valves (Heat Riser Assemblies)

Condition

Code

Procedure

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.

Bushings worn, affecting performance

A

Require repair or replacement.

Bushings worn, not affecting performance

1

Suggest repair or replacement.

Cam lobes worn, affecting performance

A

Require repair or replacement.

Cam lobes worn, not affecting performance

1

Suggest repair or replacement.

Gear broken

A

Require repair or replacement.

Gear worn, affecting performance

A

Require replacement.

Gear worn, not affecting performance

No service suggested or required.

Integrated pickup triggering device loose

A

Require repair or replacement.

Integrated pickup triggering device
magnetism incorrect

A

Require repair or replacement.

Leaking oil internally

A

Require repair or replacement.

Noisy

2

Suggest repair or replacement.

Pickup triggering device (reluctor) broken

A

Require repair or replacement.

Pickup triggering device (reluctor) loose

A

Require repair or replacement.

Pickup triggering device (reluctor) weak

A

Require repair or replacement.

Reluctor (pickup triggering device) broken

A

Require repair or replacement.

Reluctor (pickup triggering device) loose

A

Require repair or replacement.

Reluctor (pickup triggering device) weak

A

Require repair or replacement.

Shaft bent

A

Require replacement.

Thrust washer broken

A

Require repair or replacement.

Thrust washer missing

C

Require repair or replacement.

Thrust washer worn, affecting performance

A

Require repair or replacement.

Thrust washer worn, not affecting
performance

1

Suggest repair or replacement.

Condition

Code

Procedure

Broken

A

Require replacement of affected parts.

1998 Chevrolet Pickup C1500

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE