What needs attention or replacement for a code 2-4-1? I have reset the code and the "Check Engine" light remains off for awhile than relamps. Previously, the dealer service department advised that the vacuum hoses were incorrectly attached, but he fixed these.

My cooling fan is not running when it should be. The car overheated in the Spring once and again last month. The cooling fan didn't work. However, the cooling fan comes on briefly immediately after starting the car. I have replaced the cooling fan relay and at first the cooling fan seemed to operate...