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VIEW    READ ONLY    PRINT   SAVE   A    A  Sound like Carbon Build-up to you? posted by  TONY H on  Wed Jul 1 11:59 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Fri Nov 20 15:31 CST 2009 [RELATED] Not just Volvo. Has anyone experienced carbon buildup on any car that made the car sound like it has a Rod knock? Does anyone think that Carbon breaking loose off a Piston can cause a Valve to bend? My daughters Blazer (4.3 V6) went from running beautifully to this harsh Knock in a blink of an eye. At that time it runs very rough like it's down a cylinder. But then noise goes away, Roughness disappears and all is good. I have let it idle for an hour that way and out of nowhere the hard knock comes back. I will do a compression check but the symtoms have me Buffaloed. Seems like a stuck Valve or lifter but the Knock really sounds like Lower End... but then all goes away except for a new slight tap sound (hence my bent valve question). Then the hard knock comes back at anytime. The Blazer Websites are useless.. No 'real' engine knowledge on those sites. -- '75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1357632/sound_like_carbon_buildup.html">Sound like Carbon Build-up to you?</a>

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• Sound like Carbon Build-up to you?
  posted by  mmal231294  on Thu Jul 2 08:55 CST 2009 > V
  • Sound like Carbon Build-up to you?
    posted by  TONY H  on Thu Jul 2 09:17 CST 2009 > V

• Sound like Carbon Build-up to you?
  posted by  walrus3  on Wed Jul 1 17:38 CST 2009 > V
  • Sound like Carbon Build-up to you?
    posted by  TONY H  on Thu Jul 2 06:24 CST 2009 > V
    • Sound like Carbon Build-up to you?
      posted by  walrus3  on Thu Jul 2 08:01 CST 2009 > V
      • Sound like Carbon Build-up to you?
        posted by  TONY H  on Thu Jul 2 08:23 CST 2009 > V

• Sound like Carbon Build-up to you?
  posted by  billy242  on Wed Jul 1 14:19 CST 2009 > V
  • Sound like Carbon Build-up to you?
    posted by  TONY H  on Wed Jul 1 14:40 CST 2009 > V
    • Sound like Carbon Build-up to you?
      posted by  billy242  on Wed Jul 1 17:21 CST 2009 > V
      • Sound like Carbon Build-up to you?
        posted by  TONY H  on Thu Jul 2 06:33 CST 2009 > V
        • Sound like Carbon Build-up to you?
          posted by  sdewolfe  on Thu Jul 2 15:17 CST 2009 > V
          • Sound like Carbon Build-up to you?
            posted by  TONY H  on Fri Jul 3 08:18 CST 2009 > V

• Sound like Carbon Build-up to you?
  posted by  will rehsper  on Wed Jul 1 13:37 CST 2009 > V

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