Diesel Data
: Automotive Repair
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Chevy Truck
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1989
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Suburban 3/4 Ton 4WD V8-454 7.4L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Thermostat
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Specifications
Thermostat: Specifications
Heavy Duty Chassis, Opening Temperature
Thermostat Opening Temperature
195 Degrees Fahrenheit (F)