wierd chemical smell!

[hicas187]

i am having this wierd chemical smell out of the exhaust and it only seems to smell at idle, but i could be wrong. i am curious if it has anything to do with the sea foam i put down the brake boosters vaccum line like a month ago. Thats what it kinda smells like, but im not sure what else it could be or how to get ride of it. If anybody could help me i would appreciate it.

[navysnail]

if the seafoam was recent, it could be. can you describe the smell more, is it sweet, stinky, etc...

[hicas187]

it smells like the chemical that i put in there but it smells like that for like the past month or two thats to long i think its not coolant or anything i know that for sure