Cadillac CTS The mid-sized sedan that has grown the popularity of the Cadillac brand with it's low price and sleek styling

I smell exhaust fumes inside car!

  #1  
Old 03-16-2007, 12:16 PM
Thread Starter
Join Date: Mar 2007
Posts: 9
Default I smell exhaust fumes inside car!

I have a 2003 CTS with 3.2L.

A few months ago I started to notice exhaust fumes inside the car, but only sitting still. Once I get moving, the fumes don't enter. If I put the recycle on, it doesn't let the fumes in either.

So I have a problem only when I'm sitting and idleing with the HVAC drawing outside air, inside the cabin.

I've looked and looked and looked, but I can't find the problem. I don't hear any exhaust leaks. I've made sure that the rubber that seals off the inside of the hood to the cowl area is attached and not cut.

Any Ideas on what it is? Any re-calls or TSB's out there?

Thanks for any help,....it's much appreciated.
 
  #2  
Old 03-17-2007, 10:39 AM
Join Date: Dec 2006
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Posts: 18
Default RE: I smell exhaust fumes inside car!

Just 1 Idea, Have you checked the cabin air filter to see if its in properly and or blocked? always good to change it anyhow if you haven't already
 
  #3  
Old 03-19-2007, 10:29 AM
Thread Starter
Join Date: Mar 2007
Posts: 9
Default RE: I smell exhaust fumes inside car!

Ok,.....I'm not stupid here. Anybody knows that you SHOULDN'T be smelling exhaust inside the car.

That's what I'm trying to figure out!

Has anybody had a similar problem with a CTS? Any TSB on this?

Thanks for your help.
 
  #4  
Old 04-11-2007, 11:45 PM
Junior Member
Join Date: Oct 2005
Posts: 11
Default RE: I smell exhaust fumes inside car!

lar414; I just started to get the same smell on my 03 CTS with A/C on normal when stopped.Cannot see any sign of pipes leaking from laying under the car.Did you find the source?? Thanks.
 
  #5  
Old 04-12-2007, 03:19 PM
Thread Starter
Join Date: Mar 2007
Posts: 9
Default RE: I smell exhaust fumes inside car!

Not yet.... I need to wait for some nicer weather and then I'll get it up in the air and really hunt around. Probably an exhaust manifold to cyl head area, but I really don't know.

Anybody else have this issue?
 
  #6  
Old 04-04-2017, 08:21 AM
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Join Date: Apr 2017
Posts: 1
Default

Check Valve Cover Vent Hose In Back Eng
 
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