Lately I’ve been smelling antifreeze but I cannot see any visible leaks under the hood or on the ground. I had to add about a half gallon of antifreeze 2 weeks ago but the add coolent message hasn’t reappeared. Since I didn’t notice a leak in the engine compartment I was thinking of examining the heater core. I’ll probably try looking under the hood while someone revs the engine to about 4000 rpms and see if I can notice anything in the engine compartment again but if no luck there I’d like to examine the heater core. I’d appreciate If anyone has any instructions on getting to the heater core. I think I saw someone taking out the glove box in a Deville so i might start there. Any advice is appreciated. Thank you!