+ Reply to Thread
Results 1 to 5 of 5
  1. #1
    e36 wanna be
    Guest
    Location
    , ,
    Member No: e36 wanna be's Avatar


    Yes | No

    is tapping/knocking noise normal on '96 328is? (m)

    this noise is steady and does not vary with engine speed. seems to be coming from driver's side of the dash.

    also, is a running fan noise normal coming from the climate control area even when car is switched off?

    any thoughts are appreaciated. thank you.



  2. #2
    Unregistered
    Guest
    Location
    , ,
    Member No: Unregistered's Avatar


    Yes | No

    dash noise

    Quote Originally Posted by e36 wanna be View Post
    this noise is steady and does not vary with engine speed. seems to be coming from driver's side of the dash.

    also, is a running fan noise normal coming from the climate control area even when car is switched off?

    any thoughts are appreaciated. thank you.

    Same thing here, noise in the dash is like a bump bump.......bump bump. Almost sounds like a relay. Very frustrating. Fan from climate control is normal
    Reply With Quote Reply With Quote 166.147.121.153

  3. #3
    Robert Platt Bell
    Guest
    Location
    , ,
    Member No: Robert Platt Bell's Avatar


    Yes | No

    Evap Emissions Purge Valve?

    The evaporative emissions purge valve will make a ticking noise that sounds a lot like valve noise. There is a TSB on this to change the mounting bracket due to customer complaints.

    If you open the hood while the engine is running, you can hear it. It is a small valve with small hoses, nestled near the intake.

    The climate control sampling fan would "run on" on one car, for a time. I think this is the fan that sucks air into the console for sampling for the dual climate controls. It was very quiet, but it was there. One car did it, occasionally, the other never. Never seemed to hurt anything. It shut off after a few minutes.

    If it is the main fan, I would suspect the Final State Relay, but usually those fail in the OFF mode.

    Just some ideas...
    Reply With Quote Reply With Quote 108.203.44.24

  4. #4
    Unregistered
    Guest
    Location
    , ,
    Member No: Unregistered's Avatar


    Yes | No

    clicking noise

    Regular clicking sound behind dash, audible from the passenger compartment, is likely the heater valve cycling. This usually happens if there is air in the cooling system. Air that appears in the cooling system for no reason is usually caused by cracks inside the expansion tank that is attached to the radiator.

    The repeating click that you can hear under the hood originating from the relay next to the intake manifold is normal, I believe.
    Reply With Quote Reply With Quote 50.126.142.222

  5. #5
    Registered Member
    Location
    , ,
    Member No: 198434 flyaway is an unknown quantity at this point flyaway's Avatar
    Join Date
    May 2013
    Posts
    12
    Rep Power
    0


    Yes | No
    can you feel the relay and see if that is what is clicking? those things get LOUD when they do that, could be the relay. touch it and see ...
    Reply With Quote Reply With Quote 24.126.174.55

+ Reply to Thread


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Odd knocking noise in M52 328IS
    By John in forum BMW 3 Series Forum (E36)
    Replies: 6
    Last Post: 12-08-2002, 04:54 PM
  2. Tapping/knocking noise (Please help)
    By Peter from Ontario in forum Porsche 924, 944, 968 Forum
    Replies: 3
    Last Post: 10-03-2001, 09:22 AM
  3. S14 Clicking,Tapping,Knocking noise
    By Jun in forum BMW M3 Forum (E30 M3)
    Replies: 2
    Last Post: 06-14-2001, 02:37 PM
  4. Tapping noise during cold start-up.. Normal???
    By -SG in forum BMW 3 Series Forum (E46)
    Replies: 5
    Last Post: 04-19-2001, 02:03 PM
  5. * * *tapping/knocking normal on a '96 328is?* m *
    By e36 wanna be in forum BMW 3 Series Forum (E36)
    Replies: 4
    Last Post: 02-14-2001, 07:05 PM

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
1e2 Forum