OEM 2001 Buick Regal Thermostat

2001 Buick Regal Thermostat Parts and Q&A

• Q: How to replace the thermostat in a 3.8L engine on 2001 Buick Regal?

  A: Your tool list for Thermostat replacement in a 3.8l engine should begin with hose clamp pliers (J 38185). Start by taking off the fuel injector sight shield while partially draining engine coolant out of the coolant system. The next step involves separating the throttle body air inlet duct from its installation. Use hose clamp pliers (J 38185) to manipulate the water outlet housing hose clamp positioning before removing the Radiator Hose. Start by removing bolts from the water outlet housing before you detach the water outlet housing combined with its gasket to expose the Thermostat. Examine and prepared the mating surfaces after removing the Thermostat. Reinstall the new Thermostat together with a gasket after positioning them. Then replace the water outlet housing as an installation step. Wash and dry each water outlet housing bolt prior to applying rtv sealer gm p/n 1052366 or equivalent before securing them with 27 nm (20 ft. Lbs.) torque. Reposition the Radiator Hose on the water outlet housing by using hose clamp pliers (J 38185) followed by clamp installation. Finish your installation by adding the throttle body air inlet duct before filling your cooling system and reinstalling the fuel injector sight shield while checking for leaks throughout the process.