Rubber Smell (not burning) in Cab

[RugRat]

Here is my problem which usually only occurred while I was towing. I get this rubber smell (think new bicycle tube out of the box) in the cab of the truck when I am hard on the gas mostly hills. It is not a burning smell, but just a new bicycle tire smell. It goes away when I get off the gas. It happened this past weekend when I wasn't towing, but in some steep grades for extended periods of time. Any thoughts? I did replace the EGR valve a few months ago, but nothing recent.

[deviusdragger]

I had the same thing happening in my truck. Even when my windows were up and just cruising i got that smell. I havent noticed it anymore but it was a weird inner tube smell. Any body think they can shine some light on this situation?

[Jordan Beck]

I was just comming back from a trip with the trailer and my wife noticed the same thing. I got out of the truck and took a closer sniff to see if I could pin it down, but came up empty handed. I even popped the hood, still nothing. We haven't smelt it since. I thought it might have been the trailer breaks some how but there's no way we could have smelt that going down the highway.

[Diesel Monkey]

If your serpentine belt is worn, it can slip and stink.

[RugRat]

I determined mine was the anti-freeze blowing out of the degas bottle and hitting the exhaust. It was the smell of burnt antifreeze.

[Evil Eye]

This is exactly what mine was doing the last time my EGR cooler went out. You should have your cooling system pressure tested to ensure that isn't the problem.

[jemarine]

Odd but true.
I had a bag of tire chains in the back seat and the rubber tension band bag on the floor board in front (open). Heater warmed the bands up and they stunk like crazy. Didn't take but a week or so to dummy up.