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1993 Cadillac Deville 1993 Cadillac Deville 4.9

Tiny
MIKE2009
  • MEMBER
  • 1993 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 103,000 MILES
Hi everyone how are you doing I have a 1993 cadillac Deville 4.9 and I was trying to figure out why my car knocks it has oil new egr valve all regular maintenance done and it only knocks a lil at idle more when giving the car gas but dont do it at wide open throttle idk if the torque converter is loose becuse this happened 4 months ago after the transmission was rebuilt but what do you think it cn be thank you very much.
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Saturday, January 9th, 2010 AT 5:13 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
If it is a low-deep sounding knock, there was a thicker #1 main bearing that could address it. That is the only thing that comes to mind right now. Try running it without the belt shortly, and see if it changes. There was a service bulletin on this.
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Sunday, January 10th, 2010 AT 11:47 PM

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