Hummer H2. Manual - part 123

 

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Hummer H2. Manual - part 123

 

 

FUEL PUMPS (IN-TANK AND EXTERNAL, ELECTRICAL, OR MECHANICAL) 

Fuel Pumps (In-Tank and External, Electrical, or Mechanical) 

required. See note below. 

NOTE: Some components may be serviceable; check for accepted cleaning procedure. 
Determine source of contamination. Require repair or replacement. 

Inoperative 

B 

Require repair or replacement. See note below. 

NOTE: Inoperative includes intermittent operation or out of OEM specification. 

Leaking (internally or 
externally) 

A 

Require repair or replacement. 

Pressure out of 
specification 

B 

Require repair or replacement. 

Vapor bypass restricted 

A 

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. 

Connector broken 

A 

Require repair or replacement. 

Connector (Weatherpack type) leaking 

A 

Require repair or replacement. 

Connector melted 

A 

Require repair or replacement. See note 

below. 

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

Connector missing 

C 

Require replacement. 

Contaminated 

A 

Require replacement. 

NOTE: Determine source of contamination. Require repair or replacement. 

Inoperative 

A 

Require repair or replacement. See note 

below. 

NOTE: Inoperative includes intermittent operation. 

Leaking externally (includes pulsator ) 

A 

Require repair or replacement. 

Leaking internally (includes pulsator ) 

A 

Require repair or replacement. 

Noisy 

2 

Suggest repair or replacement. 

Out of specification 

B 

Require 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. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

FUEL RAILS 

Fuel Rails 

FUEL RESTRICTORS 

See Fuel Filler Necks and Restrictors.  

FUEL TANKS 

Fuel Tanks 

Terminal corroded, affecting 
performance 

A 

Require repair or replacement. 

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 

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. 

Contaminated 

A 

Require replacement. See note below. 

NOTE: Determine source of contamination. Require repair or replacement. 

Leaking 

A 

Require repair or replacement. 

Restricted 

A 

Require repair or replacement. 

Rust-pitted 

1 

Suggest 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. 

Baffles loose 

A 

Require repair or replacement. 

Contaminated 

A 

Require repair. See note below. 

NOTE: Determine source of contamination. Require repair or replacement. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

GAS CAPS 

Gas Caps 

GASKETS 

Gaskets 

GROMMETS (VALVE COVER) 

Grommets (Valve Cover) 

HARMONIC DAMPERS 

Harmonic Dampers 

Corroded internally 

A 

Require repair or replacement. 

Distorted, affecting performance 

B 

Require replacement. 

Distorted, not affecting performance 

No service suggested or required. 

Leaking 

A 

Require repair or replacement. 

Condition 

Code 

Procedure 

Application incorrect 

B 

Require replacement. 

Fails to maintain proper pressure 

A 

Require replacement. 

Gaskets missing 

C 

Require replacement. 

Leaking 

A 

Require replacement. 

Missing 

C 

Require replacement. 

Plugged (vacuum and pressure relief) 

A 

Require replacement. 

Seals missing 

C 

Require replacement. 

Condition 

Code 

Procedure 

Leaking 

A 

Require repair or replacement. See note below. 

NOTE: Require inspection of mating and sealing surface and repair or replace as 
necessary. 

Condition 

Code 

Procedure 

Leaking 

2 

Suggest repair or replacement. See note below. 

NOTE: Require inspection of mating and sealing surface and repair or replace as 
necessary. 

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. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

HEATER CONTROL VALVES 

Heater Control Valves 

HEATER CORES 

Heater Cores 

Cracked 

A 

Require replacement. 

Dented (fluid type only) 

A 

Require replacement. 

Keyway distorted 

A 

Require repair or replacement. 

Leaking (Fluid damper only) 

A 

Require replacement. 

Loose 

A 

Require replacement. 

Noisy 

A 

Require replacement. 

Outer ring slipped out of position 

A 

Require replacement. 

Positioned incorrectly 

A 

Require repair or replacement. 

Rubber damping material deteriorated 

1 

Suggest replacement. 

Seal surface worn, causing a leak 

A 

Require repair or replacement. 

Threads damaged 

A 

Require repair or replacement. 

Threads stripped (threads missing) 

A 

Require 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. 

Bypassed 

A 

Require replacement. 

Coolant leak 

A 

Require repair or replacement. 

Malfunctioning 

A 

Require repair or replacement. See note 

below. 

NOTE: Includes inoperative, intermittent operation, or failure to perform all functions. 

Missing 

C 

Require replacement. 

Restricted 

A 

Require repair or replacement. 

Vacuum leak 

A 

Require repair or replacement. 

Condition 

Code 

Procedure 

Air flow restriction 

A 

Require repair or 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. 

 

1998 Chevrolet Pickup C1500 

Uniform Inspection and Communication Standards ENGINE PERFORMANCE AND MAINTENANCE

  

 

 

 

 

 

 

 

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