This topic contains 10 replies, has 3 voices, and was last updated by 
Sam Alaimo 2 years, 4 months ago.
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Topic
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The carbon monoxide detector has a reading of 9-12ppm inside the car while the car is in idle or moving. It went down to zero after shutting down the vehicle for about a hour or so.
I didn’t see any exhaust leaks. The only problem with the car is water leaking into the trunk.
Please help!
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This topic was modified 2 years, 7 months ago by
Kia L.
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This topic was modified 2 years, 7 months ago by
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Replies
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Suggest you look for any black soot build up on all piping and connections from the exhaust manifolds to the tail pipe
Thank you for replying. To look for black sooth, I have to disconnect all pipes and possibly clean the pipes. Is it right? I wasn’t sure if there is a way to flush out.
Ummmm no.
You need to carefully inspect the externals of the exhaust system, piping clamp joints etc, for signs of soot ( meaning an exhaust leak ) that would may find its way in to the passenger compartmentSee if any of these are useful to you:
https://www.youtube.com/results?search_query=signs+of+a+exhaust+leak
Thank you. I found and fixed the leaks near the catalytic converter. However, now there is another odd scenario
The carbon monoxide detector has a reading of 9-12ppm sometimes inside the car before I started my car (very first time starting the car for the day). Once I started driving, sometimes it came down to 0 with or without my windows down.
What could be the issue?
If your meter is reading with out the car running you have 2 possibilities:
First your meter is defective
Second is over saturation of carbon monoxide.
Might try leaving the windows open for a few hours a day and see if things change.When you said over saturation of carbon monoxide, do you mean carbon monoxide is more than what is naturally mixed? does it mean something is malfunctioning?
I meant that the materials with in the interior absorbed the CO and needs to air out.
Do you mean this?
“When I first had CO issue inside the car, the CO was absorbed to the materials within the interior. I need to
keep the windows open for a few hours a day to air out the CO from the vehicle.”-
This reply was modified 2 years, 6 months ago by Kia L.
Yup.
Hey, I know this is kind of old, but did you see anymore CO in the car? Besides for the leaks you fixed, there is a possibility that the exhaust could come through a bad trunk seal when sitting at idle. Hope it is all good now!
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This reply was modified 2 years, 6 months ago by
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