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Air filter sealing issue!

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  • Air filter sealing issue!

    I think I will be adding a strip of adhesive weather seal to the filter housing, assuming it is true QA issues like this are disappointing - but Toyota's apparent indifference is more so.
    4x4 Australia finds a fault with the air intake system of the Toyota Hilux, Fortuner, and Prado – Whichcar is the online home of 4x4 Australia magazine

  • #2
    yeah i first noticed this on a trip to the Cape , a fine wisp of red dust had made it way past the filter and there was a light coating of red dust on the MAF sensor. Luckily i had a new filter with me and the mechanic up there let me blow out the dust with compressed air. He said that he had noticed it on all new Toyotas.
    when i got home i used MAF cleaner to clean the MAF an surrounding areas , though no more dust got in in the way back. Might be flexing of the housing causing it ?

    its not good if you live in a dusty area and your engine cops lungfuls of dust!!
    2016 GX , in White

    Comment


    • #3
      I haven't done much off road / dust driving, but did notice a bit of dust in the box when I changed the air filter a while back after an Eye Peninsular trip. I always carry a spare air filter on trips & have a can of MAF cleaner.

      Good idea about the weather strip around the box to reduce the chance of dust getting in, just in case the housing does flex.

      I don't have a snorkel, but will report back on any dust probs after my August Gulf trip.

      Comment


      • #4
        Hi guys

        For those that are seeing dust in your airbox, are you using the OEM filter?

        I have a K&N filter, and the seal on that is thicker than the OEM, and the box has to be pressed with sufficient force to get the clips closed. I have never seen an ounce of dust in the air box. Perhaps this may just be a fix with a thicker seal on OEM filter or the box.....

        Cheers

        Comment


        • #5
          yes its the OEM filter that allows in dust , im pretty sure a thicker seal will fix it
          2016 GX , in White

          Comment


          • blatchi
            blatchi commented
            Editing a comment
            you would think toyota would just redesign the filter and be done with it. They did the same thing with the previous model hilux fuel filter

        • #6
          https://www.motoring.com.au/toyota-s...-drama-113482/

          they claim they will retro fit existing vehicles once they have a fix. Only time will tell

          Comment


          • #7
            Originally posted by savuka View Post
            https://www.motoring.com.au/toyota-s...-drama-113482/

            they claim they will retro fit existing vehicles once they have a fix. Only time will tell
            I found the following from the article interesting.
            "It's also been found that an air snorkel, such as the one fitted to the Rugged X we tested, can exacerbate the problem in dusty conditions."

            Comment


            • DaveC
              DaveC commented
              Editing a comment
              yeah, WTF? isnt that why they fit factory snorkels? especially the ones that dont claim to be watertight anyway??

          • #8
            What is common between the fortuner/hilux and prado? not the airbox or filter, thats for sure... its not clear what the problem is. MAF sensor location, filter medium, filter housing?

            Comment


            • #9
              I got the feeling it was to do with the MAF sensor attracting dust via static electricity - can they do something to stop this I wonder? Dust less than 2-5 microns would be penetrating any filter type, I think it’s more that the dust is actually sticking onto the MAF sensor than trying to keep the dust out completely..?

              Comment


              • #10
                Officeworks here I come.
                Attached Files

                Comment


                • #11
                  that air pressure duster looks ok , but for a few dollars more i would buy the correct MAF cleaner liquid spray.
                  2016 GX , in White

                  Comment


                  • #12
                    Another interesting article

                    http://unsealed4x4.com.au/heres-filt...-dust-problem/

                    Comment


                    • #13
                      Originally posted by savuka View Post
                      "If you’re driving really dusty roads regularly and want maximum lifetime out of your engine, you might want to look at a replacement filter setup with better specifications."

                      Like what?
                      A K&N?
                      Is anyone using something different?

                      Comment


                      • Bussa
                        Bussa commented
                        Editing a comment
                        I'm using K&N and don't have an issue.

                    • #14
                      Originally posted by White One View Post
                      that air pressure duster looks ok , but for a few dollars more i would buy the correct MAF cleaner liquid spray.
                      I have a MAF cleaner but before pulling it apart I would like to blow some air over it. It will save a lot of time if I have a problem in Cape York.

                      Comment


                      • Spook1205
                        Spook1205 commented
                        Editing a comment
                        It’s literally a two minute job to remove and clean with MAF sensor cleaner and put it back in

                    • #15
                      Originally posted by Bussa View Post
                      Hi guys

                      For those that are seeing dust in your airbox, are you using the OEM filter?

                      I have a K&N filter, and the seal on that is thicker than the OEM, and the box has to be pressed with sufficient force to get the clips closed. I have never seen an ounce of dust in the air box. Perhaps this may just be a fix with a thicker seal on OEM filter or the box.....

                      Cheers
                      I believe the K&N filters seal a bit better... buy shares now lol

                      Comment


                      • Bussa
                        Bussa commented
                        Editing a comment
                        Yes seal is thicker and I haven't had a problem with the K&N...!
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