Bad smell

[Brianplum]

I have a 2019 ram 1500 classic. 5.7. 60,000 mi. Bad smell coming from under hood. Replaced battery not that. Charging at 14.6 while goin down the road. I thought smelled like sulfur or battery smell. My brother thinks maybe sumthing electrical. My buddy said he noticed smell last winter but l never . This winter I can't stand it. Coming in cab and makes u half sick. Bought it new. Warranty up and dealership not really interested at lookin at it . Any ideas??????

 

[Daw14]

Several years ago there were reports of heater hoses having a smell , however have not heard of this recently.

 

[PolarisCobra]

Dead critter under there someplace?

 

[Brianplum]

Took to another dealer. They say the smell is this new antifreeze. Can't find leak anywhere. Even used pressure tester. Ideas??

 

[KeithP]

Took to another dealer. They say the smell is this new antifreeze. Can't find leak anywhere. Even used pressure tester. Ideas??

Catalytic converter?

 

[Whiskey13]

I had a tiny pin hole in one my previous 3500 dually heater cores. The hole was so small that you really never had a build up of antifreeze inside the cab but the smell was bad until the dealership after several visits replaced the core. as soon as that was done no more smell.