Results 1 to 12 of 12

Engine noise help

This is a discussion on Engine noise help within the General Help forums, part of the LSx Technical Help Section category; Hello all, My Z makes a clicking noise at wot, for example, if I'm on the freeway and shift down ...

  1. #1
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    Question Engine noise help

    Hello all,

    My Z makes a clicking noise at wot, for example, if I'm on the freeway and shift down to pass someone, I can hear a clicking noise which I can't replicate if parked and open it up; it only happens under actual load. Any ideas?
    Thanks in advance.

  2. #2
    Senior Member slims00ls1z28's Avatar
    Join Date
    Apr 2007
    Location
    TN
    Posts
    1,212

    2005 GTO M6 Black
    2000 Z28 A4 Red

    Where is it originating from front rear? Will it do it going from park to drive reverse etc.?

  3. #3
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    Thanks for your reply!

    Well, it sounds like it is coming from the front but my exhaust is so loud that it may be disguising the real origin...but I'm quite sure its from the front.
    And no, it doesn't do it in reverse...I guess it would help to mention that I have a M6 and not an A4.

  4. #4
    Senior Member SeVeReDiStOrTiOn's Avatar
    Join Date
    Aug 2005
    Location
    Roseville, CA
    Posts
    8,164

    05 Wrangler
    00 Z28 sold :-(

    What mods do you have? Could the clicking be more like a pinging sound?

  5. #5
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    My mods are as follow:

    Diablo sport tune, all the free mods, K&N air filter, SLP air lid, JBA hedders, SLP loudmouth exhaust, SLP short shifter, SLP close ratio shifter kit, Eibach pro springs, Bilstein shocks and struts, BMR extreme shock tower brace, lower control arms and panhard relocation bar.

    Today I modified my diablo tune so I increased my fuel by 2% and spark by 1.5% so tomorrow morning I'll run it wot and see how it sounds. But if you know of another possible reason for the noise, I greatly appreciate it.

    Thanks in advance.

  6. #6
    Member jimmy77611's Avatar
    Join Date
    Feb 2007
    Location
    Here
    Age
    40
    Posts
    156

    Red
    2000 Z28

    Sounds like a detonation problem. Is your check engine light on? If so, what codes are present?

  7. #7
    Senior Member SeVeReDiStOrTiOn's Avatar
    Join Date
    Aug 2005
    Location
    Roseville, CA
    Posts
    8,164

    05 Wrangler
    00 Z28 sold :-(

    Quote Originally Posted by seasponge View Post
    My mods are as follow:

    Diablo sport tune, all the free mods, K&N air filter, SLP air lid, JBA hedders, SLP loudmouth exhaust, SLP short shifter, SLP close ratio shifter kit, Eibach pro springs, Bilstein shocks and struts, BMR extreme shock tower brace, lower control arms and panhard relocation bar.

    Today I modified my diablo tune so I increased my fuel by 2% and spark by 1.5% so tomorrow morning I'll run it wot and see how it sounds. But if you know of another possible reason for the noise, I greatly appreciate it.

    Thanks in advance.
    You might wanna contact johan or mikel at diablosport and get a custom tune for your mods (mainly the headers). Johan can also give you a lower octane tune if you don't have 93 in your area....like me I have a 91 oct custom tune in my truck because CA blows...and my preator is kinda old so it didn't come with the 91 tune.

    Also try adjusting the PE on your predator so that all your fuel trims read 0% at wot and your o2's read around 920mv...then adjust your spark until you get some KR and then pull some until there's no KR. PE only effects fuel for WOT...injector slope on your predator changes the fuel through-out the rpms. If you tune for part throttle you'll want to adjust the slope to get your LTFT's within +2% to -2%.

  8. #8
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    No check engine light...
    Camaro Z28/SS...40+ years of mustang humiliation.
    View my garage: http://www.fquick.com/Y2KBlackZ28

  9. #9
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    Quote Originally Posted by SeVeReDiStOrTiOn View Post
    You might wanna contact johan or mikel at diablosport and get a custom tune for your mods (mainly the headers). Johan can also give you a lower octane tune if you don't have 93 in your area....like me I have a 91 oct custom tune in my truck because CA blows...and my preator is kinda old so it didn't come with the 91 tune.

    Also try adjusting the PE on your predator so that all your fuel trims read 0% at wot and your o2's read around 920mv...then adjust your spark until you get some KR and then pull some until there's no KR. PE only effects fuel for WOT...injector slope on your predator changes the fuel through-out the rpms. If you tune for part throttle you'll want to adjust the slope to get your LTFT's within +2% to -2%.
    Its good to know people! I will contact them tomorrow and maybe they can hook me up.
    I played with the tune last week and gave it +2% for fuel and +1.5% for spark but I still got the noise. I'm starting to wonder if the noise is something else...mechanical, etc. Car runs great and doesn't lose power at all so the search continues. But I will definetly call DS and try to get the tune. Thanks again!

  10. #10
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    Well, the folks at Diablo Sport couldn't be more willing to help. I contacted them just now and they asked me to run a diagnostic then to send my factory tune to them so they can send me back a custom tune. All I have to say is BAD A**!!!

  11. #11
    Loudmouth!! seasponge's Avatar
    Join Date
    Nov 2005
    Location
    Hanford
    Age
    45
    Posts
    123

    Black
    2000 Z28

    Thanks to all who replied; the problem was detonation and is now fixed thanks to Diablo Sport and SeVeReDiStOrTiOn for giving me some good gauge!

  12. #12
    General Mota's! stevegrizzle's Avatar
    Join Date
    Sep 2006
    Location
    Around Tampa , FL
    Age
    33
    Posts
    378

    mid blue
    99 m6 z28

    I had this issue and it was the header/erg pipe gasket.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Some insight into the 3.4L OHV Motor...
    By Black34v6 in forum V6
    Replies: 115
    Last Post: 12-31-2015, 05:51 AM
  2. Engine Noise Help
    By kool-aide in forum Internal Engine
    Replies: 19
    Last Post: 08-31-2007, 02:43 PM
  3. LS1 upper engine noise
    By hgsaint in forum General Help
    Replies: 13
    Last Post: 09-22-2006, 11:22 AM
  4. Ringing noise coming from my subwoofer
    By sills1 in forum Stereo and Electronics
    Replies: 6
    Last Post: 02-26-2006, 06:03 AM

Bookmarks

Posting Permissions

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