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05 Honda Civic – Carbon Monoxide Inside the Car

Home Forums Stay Dirty Lounge Service and Repair Questions Answered Here 05 Honda Civic – Carbon Monoxide Inside the Car

  • Creator
    Topic
  • #988814
    Kia LKia L
    Participant

      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!

      • This topic was modified 3 years ago by Kia LKia L.
    Viewing 10 replies - 1 through 10 (of 10 total)
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    • #988820
      Nightflyr *Richard Kirshy
      Participant

        Suggest you look for any black soot build up on all piping and connections from the exhaust manifolds to the tail pipe

        #988988
        Kia LKia L
        Participant

          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.

          #988990
          Nightflyr *Richard Kirshy
          Participant

            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 compartment

            See if any of these are useful to you:
            https://www.youtube.com/results?search_query=signs+of+a+exhaust+leak

            #989359
            Kia LKia L
            Participant

              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?

              #989368
              Nightflyr *Richard Kirshy
              Participant

                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.

                #989485
                Kia LKia L
                Participant

                  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?

                  #989489
                  Nightflyr *Richard Kirshy
                  Participant

                    I meant that the materials with in the interior absorbed the CO and needs to air out.

                    #989494
                    Kia LKia L
                    Participant

                      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, 11 months ago by Kia LKia L.
                      #989501
                      Nightflyr *Richard Kirshy
                      Participant

                        Yup.

                        #990379
                        Sam AlaimoSam Alaimo
                        Participant

                          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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