Question about 2001 Chevrolet Malibu
Your Thermastat is located in a Dome Shaped Housing,just take your hand put it on upper radiator hose and follow it to the engine ,you'll run into a hose clamp around the hose thats holding it on the Thermastat Housing.
Make sure your car is cold, then put a pan underneath vehicle below the thermastat housing,You'll loose a Little Coolant ,So this Way you can catch it.
Just Loosen the Rad. Hose Clamp and Pull off the Hose from the Thermastat Housing.Then you'll have a couple bolts holding on the Housing,Remove the Bolts and The Housing should be FREE to come off.If its a Little Stubborn ,Lightly Tap on It with a Plastic or Rubber Hammer a nd it will come off.Your Thermastat is under the Housing.
After off Clean Both Surfaces on the Housing remove All the Old Gasket material and Gasket Sealer .Then just put your new thermastat housing in with the Spring part facing Up.
Put Gasket Sealer on The Thermastat Housing and Put new Gasket on and Line up your Bolts Holes.
And Also piut a Small bead og Gasket Sealer on The Engines Surface. Tighten Down Good and Snug ,But Don't Over Tighten.
Put the Hose back on Tighten Clamp and Fill Radiator Back up to Top.
Please let me Know how my Answer and Solution Helped you By Voting .Thanks From d_hubbs
Posted on Oct 16, 2010
Drain the coolant, remove the upper radiator hose, unbolt the thermostat housing from the engine, clean all metal surfaces, install a new thermostat, reattach the thermostat housing, install a new upper radiator hose, refill system with coolant, start car and let it idle for a good while before driving to burp the air pockets out of the system, monitor the coolant level. Look in your manual AND call a dealer to see if you should use the orange or green coolant. These are notorious for having a bad gasket on the intake manifold which sucks coolant into the engine so do not be surprised if your thermostat replacement does not fix your issue.
Posted on Oct 16, 2010
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Posted on Jan 02, 2017
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