Results 1 to 10 of 10

knock or tick down from bottom end

This is a discussion on knock or tick down from bottom end within the General Help forums, part of the LSx Technical Help Section category; okay i have this noticable tick/knock coming from the engine. at first i thought maybe a bent pushrod, broken valvespring ...

  1. #1
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    knock or tick down from bottom end

    okay i have this noticable tick/knock coming from the engine. at first i thought maybe a bent pushrod, broken valvespring or rocker. well i took the valve covers off and checked everything out, all looked good. so i put everything back on and the noise was still there. so i took it to a local shop and had them lift it up and listen around. its not an exhaust leak they checked with a stethascope(spelling?). you can hear the tick/knock all the time but its really noticable when the car was lifted and you stand directly under the engine or when the car is like in a drive thru with walls on both sides.

  2. #2
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,520

    98 Formula
    06 duramax

    the local shop wasn't able to give you any clue as to what's causing it? If it's low in the motor I would guess a spun bearing but it could be a few things before I would just go with that by a description on here. Could be a bolt backed off in the flywheel or something like that too.

  3. #3
    Senior Member bigrondownhiller's Avatar
    Join Date
    Feb 2006
    Location
    Orange County, NY
    Age
    42
    Posts
    2,674

    Black
    1996 Camaro Z28 vert

    Just as orion said could be a flywheel bolt. Is it 6spd or auto?

  4. #4
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    Quote Originally Posted by 0rion View Post
    the local shop wasn't able to give you any clue as to what's causing it? If it's low in the motor I would guess a spun bearing but it could be a few things before I would just go with that by a description on here. Could be a bolt backed off in the flywheel or something like that too.
    no the shop couldnt help much it was a buddy of mines shop who does exhaust and simple bolt on stuff. so if it is a spun bearing does that meen the engine is toast? what would cause it to happen? Im gonna try to seafoam it to see if its a sticky lifter, i dont think it is though it sounds like its coming more from the bottom of the car, it sounds just like an exhaust leak only theres no leak and its doesnt have that air swoosh sound just a tick/knock sound.

  5. #5
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    Quote Originally Posted by bigrondownhiller View Post
    Just as orion said could be a flywheel bolt. Is it 6spd or auto?
    its a 6spd

  6. #6
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    also the car has a weird vibration when its warming up, you can mainly feel it in the brake and gas pedal, not the clutch. oh and you can also feel it kinda kick/rumble wright as you start it up and as it shuts off.
    Last edited by ggino85; 09-05-2008 at 06:59 AM.

  7. #7
    Senior Member bigrondownhiller's Avatar
    Join Date
    Feb 2006
    Location
    Orange County, NY
    Age
    42
    Posts
    2,674

    Black
    1996 Camaro Z28 vert

    with it being a 6 spd it could be the pilot bushing. Does the sound change when you push the clutch in?

  8. #8
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    I don't think it does but I'm not at home with the car so I can't check. I was listening to it this morning and it definitly ticks/knocks with the engine rpm.would the pilot bushing do that?

  9. #9
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    okay guys i got a mechanics stethascope and listened around. the only place i really heard anything tick was in the passenger side valve train so im gonna pull the valve cover off AGAIN and check it out. hopefully a rocker just loosened up or somthing.

  10. #10
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    ok so i have the valve cover off the passenger side, the side i heard the tick on and everything seems ok. no loose rockers, well are they suppose to move from side to side a little bit??(some do and some dont ) wat else should i be checking besides pushrods i checked them already?? could this be because the first time i took the rockers off i got them mixed up and didnt put them back exactly where they came from? IM GETTING HELLA FRUSTERATED WITH THIS CRAP!!!!! please

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2007 chevy 2500 6.0 tick/knock problem
    By coletrain777 in forum GM Trucks
    Replies: 2
    Last Post: 05-18-2016, 07:02 PM
  2. Tick-a-tick-a-tick-a-tick-a...Rear end when cornering
    By bhunter0830 in forum Suspension and Handling
    Replies: 8
    Last Post: 04-06-2012, 04:37 AM
  3. Question: Knock from bottom of engine
    By cvanthull in forum Internal Engine
    Replies: 7
    Last Post: 12-05-2009, 08:45 PM
  4. Question: Tick or Knock?
    By Fueled in forum General Help
    Replies: 19
    Last Post: 03-30-2008, 11:26 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
  •