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ENGINE APPLICATION MANUAL GM Powertrain
Gasoline 4.3L V6 90 Degree Revised: 08/15/2000
File: c:\data\manuales\v6-truck\am43v6#3.doc
Contact:Luis Nespolo - (248) 857-1558 Printed: 8/15/00
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5.0 OPERATING ENVIRONMENT
5.1 ROADWAY GRADES, SURFACES AND HAZARDS
The careful selection of 4.3L V6 90 Degree Engine and Transmission in accordance with the proper
installation to the vehicle will assure the operation of the engine in a very wide range of roadway
grades, surfaces, hazard and Off Road conditions.
Altitude: The engine is designed to function at altitudes from 200ft (61M) below sea level to 14500ft
(4420M) above sea level.
Gradability: The engine is designed to function at grades -16<0< 16% GM Application engineering
will support the customer with applications out of this range.
5.2 CRITICAL COMPONENT TEMPERATURE LIMITS
The following table 5.2 shows Critical Component Temperature Limits as a reference value for
different components. The GM application will verify these values for each specific application. All
engine non-metallic components not listed in the table will withstand a minimum underhood
temperature of 121 Degree Celsius.
Component Temperature Range Excursion Temp (Deg. C)
Coolant Temperature Sensor -40 to 132 172
Aux. Cooling Fan Switch -40 to 132 172
ESC Sensor -50 to 135 185
Spark Plug Wire Conduit - Nylon -40 to 120 180
Spark Plug Wire Clips - Nylon 66 -40 to 135 200
Spark Plug Wire Boots - Hi Temp Silicone -40 to 232 272
Fuel Injectors -40 to 120 160
MAP Sensors -40 to 105 145
Fuel Rail -40 to 125 165
Coil Driver Module -40 to 125 165
Crank Sensor -40 to 150 165
Oxygen Sensor Connector -40 to 125 165
Starter Motor -40 to 121 161
High Voltage Switch & Internal CAM Sensor -40 to 150 165
ECM Coolant Sensor -40 to 155 195
Ignition Coil -40 to 105 145
MAF sensor -40 to 125 165
Throttle Body -40 to 120 160
Purge Valve -40 to 125 150
Evap. Tube -40 to 125 150
Canister -40 to 90 125
IAT Sensor -40 to 125 165
EGR & Internal -40 to 135 175
Oil Pressure Sensor -40 to 150 190
Ignition Cable -40 to 232 272
Block Heater -40 to 135 175
Bypass Coolant Hose -40 to 130 170
Exhaust Manifold & Components -40 to 950 1100
Underbody Attaching Harnesses/Connectors -40 to 125 165
Transmission to Engine Electrical Connectors -40 to 135 175
Oil Pan Gasket -40 to 150 190
Quick Connect Cooler Fitting Seal -40 to 150 190
Oil Pan Drain Plug Seal -40 to 150 190
NSBU Switch -40 to 150 190
Oil Mineral -30 to 128 150
Belts -40 to 121 121