While changing valve cover gasket....

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  • Jean
    Moderator
    • Aug 2006
    • 18228
    #1

    While changing valve cover gasket....

    Did an oil change and replaced the valve cover gasket as it was leaking a bit, and what did I find?



    so far so good... oh wait





    These hoses are only about 6 months or so old.... no wonder I could never get my idle to stay rock solid as it would sometimes fluctuate about 50-100rpms randomly.



    This is the icv to intake manifold hose, I could actually see it collapse while the engine running and noticed a crack in it.

    WTFBBQ...I got these from autohausaz, but this time around picked up a set from dealer. We'll see how long they'll last.





    So...check your hoses, they might LOOK ok but that's about it.



    Picked up a set of new ones, installed and idle is solid now!
    Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



    OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827
    Tags: None
    • N2MYE30
      R3V Elite
      • Oct 2007
      • 5536
      #2
      hmmmm....something else to look into.

      COTM

        Comment

        • McGyver
          R3V Elite
          • Jun 2009
          • 4456
          #3
          i broke that hose were it comes into the VC when i did mine. now it leaks a bit of oil and i'll fix it later.
          sigpic
          1987 - 325i Convertible Delphin Auto [SOLD], 325i Convertible Delphin Manual [SOLD]
          1989 - 325i Convertible Bronzit m30b35 swapped [SCRAPPED], 325i Sedan Alpine Auto[DD]
          1991 - 325i Coupe Laguna Manual [Project], 535i Sedan Alpine [SCRAPPED]

            Comment

            • 325ix
              R3V OG
              • Aug 2009
              • 7783
              #4
              I need to check these as my idle has been off a little lately.

                Comment

                • euroshark
                  No R3VLimiter
                  • Apr 2006
                  • 3491
                  #5
                  I've had iffy luck with some of the hoses I've been getting lately too... I get everything from AutohausAZ but I'm sure they carry what everyone else does.
                  '88 528e /// '88 M5 /// '89 951 /// '98 E430 /// '02 M5

                    Comment

                    • mikeedler
                      R3V OG
                      • Feb 2004
                      • 6707
                      #6
                      looks like your "new" hose is already about 2 years old too. and seems it was made in the u.s.-- kinda odd to me.

                        Comment

                        • Jean
                          Moderator
                          • Aug 2006
                          • 18228
                          #7
                          That's a picture of the 6 months old hose actually from autohausaz that failed.
                          Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                          OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                            Comment

                            • Huff
                              R3VLimited
                              • May 2006
                              • 2488
                              #8
                              Funny, just did my valves and the same issue is happening to me. Hoses look fine and did the ol' carb cleaner spray trick, but it still seems like a small vacuum leak.

                              Thanks for the justification to check those out again.

                                Comment

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