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1999 T&C engine knocking??

  #1  
Old 09-26-2009, 09:32 AM
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Default 1999 T&C engine knocking??

my 3.8l engine is making a knocking noise at idle when the engine is cold. When i hit the gas or once it warms up the noise goes away but then when i turn on the A/C the knocking noise returns. My oil level is fine. Any ideas?
 
  #2  
Old 09-26-2009, 01:09 PM
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Originally Posted by juicemandan View Post
my 3.8l engine is making a knocking noise at idle when the engine is cold. When i hit the gas or once it warms up the noise goes away but then when i turn on the A/C the knocking noise returns. My oil level is fine. Any ideas?
Where do you want to start... theres a couple hundred things it 'could' be.

low oil pressure
bad water pump
cracked flex plate
crank pulley
tensionser pulley
idler pulley
alternator bearings
a/c compressor
rocker arms
cracked piston
worn rod bearings
worn main bearings
worn cam bearings
timing chaing
lifters
could even be the Canister Purge valve
 
  #3  
Old 09-26-2009, 04:22 PM
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hey thanks for nothing! i was just wondering if this was a common issue and maybe someone had it happen to them before and could lead me in the right direction. Thats the point of a forum right? not to tell people "well it could every part of your engine"
 
  #4  
Old 09-26-2009, 05:34 PM
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The whole prob with noise is that U cant hear it over the internet what some thing sounds like to u maybe different to an expert understand?
Anything that moves can make noise.
 
  #5  
Old 09-27-2009, 03:57 PM
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Originally Posted by CHRYSLER TECH View Post
The whole prob with noise is that U cant hear it over the internet what some thing sounds like to u maybe different to an expert understand?
Anything that moves can make noise.

WHAAAAAA my car is broke WTF is wrong and why don't you fix it for me!!! I demand you GIVE the correct answer... NOW

geez... some people
 
  #6  
Old 09-28-2009, 04:56 PM
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loose nut behind the wheel?????
 
  #7  
Old 04-11-2010, 07:13 AM
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I knwo the post is old was it the famous flywhell problem? I thought it was my a/c compressor and changed it for nothing. Turn out my 2nd guess was right fly wheel
 
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