Where Is The Thermostat Housing On A 2002 Buick Century Custom

Posted in Cooling Perfomance
  • 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.

    There are One Answer for "Where Is The Thermostat Housing On A 2002 Buick Century Custom"

    1. onebadpooh2001 says:

      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.

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