2000 Grand marquis
 

Hello. I have a 2000 mercury grandmarquis. Now when i am driving and my car is at full temperature i have decent heat doesnt feel like its as hot as it should be. But, when i come to a complete stop i lose a decent amount heat and i smell oil burning. But i have no oil leaks or anything the motor is completely dry. Would anyone have any ideas on whats going on? The car has also been sitting since october. Maybe a nest was made somewhere?