I just had my coolant flange replaced and have had a noxious smell in the cab ever since. The dealership told me that they used some "chemical" to clean out some dried up coolant and, after going back to them about the smell, they found more coolant and did another cleaning. The smell is now worse so I think it must be this chemical that is causing my issue.

They have assured me that it will go away after a few days, but it's still there. If anyone could offer any advice on my problem or ideas on how I might clean this up myself, I would greatly appreciate it!

Thanks in advance.