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ENGINE APPLICATION MANUAL GM Powertrain
Gasoline 4.3L V6 90 Degree Revised: 08/15/2000
Contact:Luis Nespolo - (248) 857-1558 Printed: 8/15/00
5.0 OPERATING ENVIRONMENT ......................................................................................................... 65
5.1 ROADWAY GRADES, SURFACES AND HAZARDS ................................................................65
5.2 CRITICAL COMPONENT TEMPERATURE LIMITS .................................................................65
5.3 HUMIDITY, RELATIVE HUMIDITY (SEE CHART 5.2-I)............................................................66
5.4 PRESSURE (SEE CHART 5.2-I)...............................................................................................66
5.5 UNDERHOOD/UNDERBODY CAR WASH...............................................................................66
5.6 FORDING ..................................................................................................................................66
5.7 SAND AND DUST EXPOSURE ................................................................................................66
5.8 GRAVEL AND STONE CHIP EXPOSURE ............................................................................... 66
5.9 OZONE EXPOSURE .................................................................................................................66
5.10 ELECTROMAGNETIC ENVIRONMENT...................................................................................66
5.11 SHOCK, IMPACT.......................................................................................................................66
5.12 VIBRATION POWERTRAIN BENDING.....................................................................................67
6.0 RECOMMENDED USAGE CONSTRAINTS.....................................................................................69
6.1 ENGINE PRE-CONDITIONING PRIOR TO NORMAL OPERATION........................................69
6.2 ENGINE SPEED........................................................................................................................69
6.2.2 Maximum Start Time. ....................................................................................................69
6.2.3 Idle Quality (Speed and Stability)..................................................................................69
6.2.3.1 Idle Stability .......................................................................................................69
6.2.3.2 Idle Speed .........................................................................................................69
6.3 ENGINE LOAD ..........................................................................................................................71
6.4 OIL & CRANKCASE VENTILATION..........................................................................................72
6.5 COOLANT:.................................................................................................................................72
6.6 COMBUSTION CONTROL........................................................................................................72
7.0 QUALITY, RELIABILITY, & DURABILITY (QRD) ............................................................................72
7.1 QUALITY AND RELIABILITY ....................................................................................................72
7.2 DURABILITY - USEFUL LIFE....................................................................................................72
8.0 SERVICE REQUIREMENTS .............................................................................................................73
8.1 MAINTENANCE SCHEDULES (SEVERE USAGE AND NON SEVERE USAGE).................. 73
8.1.1 Maintenance Schedules - Severe Usage (Schedule I) .................................................73
8.1.2 Maintenance Schedule - Non Severe or Long Trip/Highway Usage (Schedule II) .......73
8.2 SERVICE INTERVAL BY SCHEDULE ......................................................................................73
9.0 DIAGNOSTICS ..................................................................................................................................73
10.0 OTHER AVAILABLE DOCUMENTS.................................................................................................73
11.0 VALIDATION REQUIREMENTS .......................................................................................................75
11.1 GENERAL..................................................................................................................................75
11.2 METHODS.................................................................................................................................75
11.3 VALIDATION DETAILS..............................................................................................................75
11.3.1 Installation Review ........................................................................................................75
11.3.2 Emissions Test................................................................................................................75
11.3.3 Cooling System Performance Test .................................................................................75
11.3.4 Water Snow Inhalation Performance Test ......................................................................75
11.3.5 Design Review/ Mockup .................................................................................................75
11.3.6 Underhood Temperature Measurements and Locations ................................................76
11.3.14 On Road Vehicle Test ...................................................................................................76
12.0 NOTES...............................................................................................................................................77
12.1 ACRONYMS, ABBREVIATIONS, AND SYMBOLS ...................................................................77