When your 1994 GMC Sierra begins to overheat and you bear confirmed that the Motor lorry is not low on coolant, the thermostat may be failing. You can convert the thermostat Homewards without having to spend hours in a function centre waiting nature. Purchase a replacement thermostat from an auto-parts retailer or GMC dealership. Satisfy your Motor lorry back on the way in no day and attainment a belief of accomplishment by doing it yourself.
Instructions
1. Stand the hood of your GMC Sierra pickup. Remove the radiator cap. Come from the upper radiator hose to the adverse objective, beside the intake manifold on top of the engine. Loosen the hose clamp with a flat-head screwdriver. Pull the hose off the thermostat housing. Remove the two bolts securing the housing to the mounting area with a socket and ratchet.
Tighten the radiator withdraw plug. Remove the extract pan from under the Motor lorry.
3. Position a substantial empty pan underneath the radiator drain plug on the passenger side of the radiator.2. Loosen the radiator empty plug with a wrench. Wait while the coolant drains until it is dispassionate below the calm of the upper radiator hose.
4. Pull the thermostat housing apart. Remove the old thermostat from the housing. Clean any remnants of the old gasket from the housing and the mounting surface with a flat scraper or similar tool. Insert the new thermostat in the housing and position the new gasket on the mounting surface.
5. Place the thermostat housing on the mounting surface. Replace the retaining bolts and tighten them evenly. Do not over-tighten the bolts, to avoid crushing the gasket. Replace the radiator hose and tighten the hose clamp with a flat-bladed screwdriver.
6. Add coolant to the radiator until the coolant level is full. Replace the radiator cap and close the hood of your truck.
