gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Specifications|Page 2457 > < Thermostat, Engine Cooling|Specifications|Page 2455
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1. Install the thermostats and seals to the thermostat housing.

The rear thermostat (4) has 2 vent valves. Install the vent valves towards the rear of the engine.

Caution:  Refer to Fastener Caution   (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).

2. Position the thermostat housing and install the 4 bolts and tighten to 21 Nm (15 lb ft).

Thermostat, Engine Cooling|Specifications|Page 2457 > < Thermostat, Engine Cooling|Specifications|Page 2455