Home » Cooling Perfomance » Where Is The Thermostat Housing On A 2002 Buick Century Custom Where Is The Thermostat Housing On A 2002 Buick Century Custom MY 2002 Buick Century Custom was overheating after about 5 minutes the car is on, I’m sure it’s the thermostat but I am where it is. Tags:2002, Buick, century, Custom, Housing, Thermostat Related Questions My Radiator Hoses Keep Popping Off. I Changed The Thermostat And Clamps. What Else Could Be The Problem I had to replace my radiator about a year ago, and have been having problems ever since. How To Change The Thermostat On A 2000 Chevy Malibu. How do you change the thermostat on a 2000 Chevy Malibu? I see the top bolt and can feel the bottom bolt to take off the one peice. (sorry, One Respons for The Question onebadpooh2001 If you have the 3100 engine,the thermostat is below the throttle body where the upper radiator hose is going. If you have the 3800 engine,it is toward the front of the car from the throttle body where the upper radiator hose is. One note is,no engine overheats in 5 minutes.The coolant will not get hot enough in 5 minutes to be able to open the thermostat. I would bet you have a head gasket problem. Most likely it would be the rear head gasket pumping cylinder pressure and heat into the coolant. Incoming search terms: 2002 Buick Century Thermostat Replacement,2002 Buick Century Thermostat Housing,Hiw Much Can A 2002 Buick Century Tow?,Where Is The Themostat On 2002 Buick Century,Where To Put The Gasket On A Thermostat 2002 Buick,Why I Have No Thermostate In 3100 Sfi Vs ?