> I have a 2004 Suzuki Forenza, 5spd with ~45k miles.  Over the last two
> weeks I have noticed exhaust fumes in the passenger compartment during
> this scenario:

> -Blower is on
> -Car is stopped for more than 3-5 seconds
> -Only when car is fully warmed up
> -Hot/Cold temperature selector doesn't matter
> -recirc solves the problem completely

> -What I had done:
> -removed leaves and debris from intake between hood and windshield
> -checked exhaust manifold for cracks
> -checked exhaust pipe connections to cat for any leaks and/or soot
> -Looked (the best I could) for vacuum lines or something that might
> have become disconnected
> -Checked PCV

> Does anyone have any other idea what could cause this all of a sudden
> and only when the vehicle is completely warmed up?  This car does do
> most trips between 1 and 3 miles, stop and go in the Denver area.  On
> another note, I had 10 gals of fuel that was 1 year old with a double
> dose of stabil in it.  I change it out annually and usually put it in
> my truck.  Truck was full so I put it in this car.  I can't remember
> if the fumes started after that or not but it seems it might have been
> around the same time.  Could that cause the problem?  Car is down to
> 1/2 tank and I figure when it gets to 1/4, I'll put in fresh fuel.

> TIA,

> Derek

> news:323c003e-266a-4aad-ad6c-4a249f1e7d42@2g2000prl.googlegroups.com...

> > Hey All,

> > I have a 2004 Suzuki Forenza, 5spd with ~45k miles.  Over the last two
> > weeks I have noticed exhaust fumes in the passenger compartment during
> > this scenario:

> > -Blower is on
> > -Car is stopped for more than 3-5 seconds
> > -Only when car is fully warmed up
> > -Hot/Cold temperature selector doesn't matter
> > -recirc solves the problem completely

> > -What I had done:
> > -removed leaves and debris from intake between hood and windshield
> > -checked exhaust manifold for cracks
> > -checked exhaust pipe connections to cat for any leaks and/or soot
> > -Looked (the best I could) for vacuum lines or something that might
> > have become disconnected
> > -Checked PCV

> > Does anyone have any other idea what could cause this all of a sudden
> > and only when the vehicle is completely warmed up?  This car does do
> > most trips between 1 and 3 miles, stop and go in the Denver area.  On
> > another note, I had 10 gals of fuel that was 1 year old with a double
> > dose of stabil in it.  I change it out annually and usually put it in
> > my truck.  Truck was full so I put it in this car.  I can't remember
> > if the fumes started after that or not but it seems it might have been
> > around the same time.  Could that cause the problem?  Car is down to
> > 1/2 tank and I figure when it gets to 1/4, I'll put in fresh fuel.

> > TIA,

> > Derek

> I dont think the Stabil has anything whatsoever to do with your problem.
> Those types of formulations are antioxidants, and are used in relatively
> small concentrations.  They burn relatively cleanly.

> The situation you describe sounds like you have a leak somewhere externally,
> and that when you stop the fumes get drawn into the car.

> If it is really exhaust fumes you smell, there has to be a leak in the
> exhaust
> system somewhere EVEN toward the back of the exhaust pipe as it tries
> to exit from under the car.   My first advice is to get the car to a muffler
> shop
> or up on a life and look much closer.

> Might it be that you are dripping a little bit of oil onto the exhaust
> manifold or
> exhaust pipe from, say, a seeping valve cover gasket?  That creates noxious
> smells, but is different from an exhaust leak.

> Let us know what you find, but be sure and dont let this drop.  Fumes like
> this
> can kill you.- Hide quoted text -

> - Show quoted text -