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Exhaust Fumes

820 Views 6 Replies 6 Participants Last post by  fhteagle
Hello Volt Community,
It has been a while since I posted a question. While I am driving and the generator kicks in (Mountain mode or out of battery) I seem to be smelling exhaust fumes. Has anyone else had this issue? I thought maybe it was from other vehicles, but I put a window down to allow the fumes to escape, close the window, and the fumes come back.
Any thoughts or suggestions would be appreciated.
In case I had not mentioned it before, I was able to get a new battery pack covered by the 10 year warranty (in CA) thanks to our state regulators at CARB and BAR. They contacted the dealership, the repair was arranged, and I was provided a free loaner while the work was done (about 18 days).
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OpenEVSE home charger, 2013 Volt base, added tow hitch, K&N filters, 3d printed interior mods, etc
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I noticed this the other day also. Switched to hold mode doing 30-50mph on a cold 25F morning. I smelled the same unmistakeable smell of gasoline that you get with a cold catalytic converter. It was definitely not an oil smell that followed the car about 4 miles. Went away when (I assume) the cat warmed up, same as what happens when it is preheating using the ICE in my driveway.

Car was just checked over by the stealership for it's 10th birthday a couple of months ago, so I doubt I have any serious and obvious exhaust leaks. But it's possible. Checking for that would be the first step in troubleshooting that I would do if I was worried about it.
 

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OpenEVSE home charger, 2013 Volt base, added tow hitch, K&N filters, 3d printed interior mods, etc
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@tpsangler -

If you force the engine to run while stationary, like in a parking lot or driveway, can you smell the gas from outside of the car? Any drips on the pavement? If it's a gasoline leak under the hood, it also would not go away once the cat warmed up. Such a leak could be extremely dangerous...
 
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