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Sounds like a chain dragging

  #1  
Old 02-17-2009, 08:23 PM
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when i accelerate. tried one grad better gas no difference. not really loud but it''s there. could be a belt?


90cougar
 
  #2  
Old 02-18-2009, 03:23 PM
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could be the timing chain tensioner slacking off and allowing the cam to lag a little causing some valve slap. my wife''s crown vic does that going up hills. it could also be a rear axle bearing starting to give, but I think that would sound more like a grind or hum. if it''s a belt, it would squeal. pulleys would squeal as well. more than likely it''s either the timing chain tensioner or valve guides. Either way, it''s time consuming and generally not cheap to fix.
 
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Old 02-23-2009, 06:41 PM
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It''s not your average engine pinging?
 
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