Exhaust Smell In Cab

[bigD1031]

So when I am sitting at a stop and have the A/C on I seem to be able to smell exhaust. It isn't over powering and isn't always there but I'm wondering if this is normal or might I have an exhaust leak? Never smell it when I am driving down the road or have the AC off.

[Lilpooh]

Up pipes leaking, and/or Y pipe. They are prone to cracking at the bellows.

[bigD1031]

I think I smell (bad analogy) a reason for a new exhaust system.....can you say 4" turbo back????

Is the y pipe a pain to get to?

[Galaxie]

Is this all the time? I will get the smell when my truck is first warming up (if unpluged like leaving work). Very small amount and only when it is sitting warming up in a parking spot.

[Lilpooh]

Originally Posted by bigD1031

I think I smell (bad analogy) a reason for a new exhaust system.....can you say 4" turbo back????

Is the y pipe a pain to get to?

Reading material, post #5.
Where is the Y pipe?

[w_huisman]

Could also be warped/leaking exhaust manifolds.

Get under the truck and look for black soot marks near seals and joints in the exhaust piping. Start where the manifolds bolt to the head, and work your way back to the turbo.

[Turbo Wax]

Originally Posted by Lilpooh

Up pipes leaking, and/or Y pipe. They are prone to cracking at the bellows.

I have the SAME problem! I can see the black soot on the left side of the engine, but I haven't been able to see the origin of the leak. However, I suspect is this Y Pipe,

Who sells them besides OEM Ford? Or they are not that expensive?

Thanks

[Lilpooh]

Originally Posted by Turbo Wax

I have the SAME problem! I can see the black soot on the left side of the engine, but I haven't been able to see the origin of the leak. However, I suspect is this Y Pipe,

Who sells them besides OEM Ford? Or they are not that expensive?

Thanks

Here is some reading material that might help you make a decision.
Aftermarket Y-pipe Liberator vs Innovative vs ??

[bodayshus]

I had that issue a while back and found the fuel filter o-rings were installed wrong. Replaced the fuel filter and o-rings again and the smell went away. I thought it was an exhaust smell, but apparently it was a fuel smell.

[Turbo Wax]

Lilpooh

Thank you for the link!!