There's an odd burning smell coming from under my 1999 F150.
I don't know if its coming from the transmission, or the cats? But it's only coming from the drivers side, and stops right before you get to the bed.
If anyone could help me identify what's causing this odd smell, I'd appreciate it

 

Go under and try to find where the smell is coming from.

 

What type of smell oil plastic rotten eggs or just crawl under and check it out hope you find it and good luck