My fridge reeks and nothing is getting the smell out.

Throw it out. New ones are cheap.

 

The cooolant passages may have ruptured. As said above. Get another

 

Fire.. whatever is living in it can only be killed with fire and lots of it.

 

Turn it off, remove all shelves and draws.
Spray with bleach, leave door open over night. Rinse and repeat.
Also it may not be the fridge but what spilled underneath it. It's only two bolts and a plug to pull it out.
I don't know which is worse a driver that lives like a pig or the the company that expects you to clean someone else's mess.
I almost walked away from a job that wanted me to clean a truck. I recovered the truck and took it to a dealership and got a room.

 

Pull out the drip tray and make sure you clean the underside of the freezer. Spray it good with a cleaner like 409. Set on low and leave the door cracked open.

 

Later. Whenever you have it shut down for holidays or whatever. Leave the door open so it airs out, otherwise bacteria and mold can grow in there.

 

Walmart sells a cheap fridge that even has a mini freezer compartment for like $89. I beat the crap out of mine, 3.5 years old still works. I’d just get another.

 

Vinegar is the ONLY thing that will get rid of that
Period