Operation CHARM
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GMC
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1991
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Syclone V6-262 4.3L Turbo
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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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Service and Repair
Thermostat: Service and Repair
1.
Disconnect battery ground cable.
2.
Drain coolant from radiator, then remove water outlet retaining bolts.
3.
Remove outlet and gasket, then the thermostat from the outlet.
4.
Reverse procedure to install.