Do y'all get exhaust fumes in the cab?

[Eric250]

Because I do. It's not all the time just after its warmed up after an interstate run or driving hard. Sometimes it does it sometimes it doesn't. If I put the ac on recirculate it goes away. I was just wondering if there was a fix for this.

Oh and the truck still has the stock exhaust.

[southend]

You need to check for soot around the firewall, you have an exhaust leak.

Sent from my phone that somebody didn't help me get.

[Eric250]

Would it be pretty obvious? I've checked and didn't see anything.

[southend]

Maybe it would help if someone would throttle it up while you look for signs of smoke.

Sent from my phone that somebody didn't help me get.

[Eric250]

I'll try that. Is there an area I could feel around where leaks are common to see if I can feel exhaust blowing?

[southend]

Flex joint on the uppipe. Sure its not the intake/cac boots?

Sent from my phone that somebody didn't help me get.

[Eric250]

I just had those replaced under warranty because they were shot. Maybe the dealership didn't install them properly?

[Eric250]

No smoke under the hood. No soot like residue under the hood, clean firewall an the flex section on the up pipes are still shiny gold. No leaked around the turbo either. I'm stumped

[RRF985]

Is the truck stopped when this happens by chance? A light breeze can carry the exhaust around the front then the hvac can blow it in the cabin. I've had that happen quite a few times. It's the only other thing I can think of since you can't find any residue.

[Eric250]

Yes only when stopped. And it's only sometimes.