1994 Cadillac EL Dorado low tone rumbling noise that get

Tiny
MCGARY65
  • MEMBER
  • 1994 CADILLAC ELDORADO
  • V8
  • FWD
  • AUTOMATIC
  • 114,000 MILES
I get a low tone rumbling noise that gets higher as I speed up like a barring at the end of the cv but, I had a code tell me that it is the torqe converter.
Wednesday, September 8th, 2010 AT 2:22 PM

6 Replies

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
The code is probably not telling you the source of the noise, and a noise with the torque converter would not change with vehicle speed. More than likely, you have a fault front hub/bearing on either the right or left side. Does this noise go away when swaying the wheel right or left at speed? That almost confirms a bearing. If you can determine which side, it is not too difficult to replace. Sometimes the difficulty lies in determining right or left, but the part is the same. So if you are incorrect on first try, it is just some additional labor to swap them side to side.
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Wednesday, September 8th, 2010 AT 11:16 PM
Tiny
MCGARY65
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  • 5 POSTS
I put the car up on jacks and pulled the hub asembly off and axlesout put it drive and the noise is still there. I can't heir it by the wheel as loud as I can heir it under the hood like right where you would fill the transaxle up with fluid on the top partof the trans. And yes the hubs are dried out also. It all started when I made a right turn and had to go up a steep hill as soon as I made my turn then the noise started.
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Sunday, September 12th, 2010 AT 9:07 AM
Tiny
FACTORYJACK
  • MECHANIC
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So then the noise would increase with engine speed? My next step would be to remove the trans pan and check for debris. If the noise only occurs in gear, I would suspect something in the transmission at that point.
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Monday, September 13th, 2010 AT 9:58 AM
Tiny
MCGARY65
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  • 5 POSTS
I can put it nuetral and rev the motor while im driving and the noise is still there. The tone goes up or down to[ the speed of the car] not the engine no matter what gear it is in or not in except park it doesnt do it in. The fluid that came out of the drive axle when I pulled it out was at first kind of chaulky red at first. Not to long ago I just had the A-B shift selanoid replaced because it wouldnt shift into second gear. I think it was the B that they replaced. But if I pull the pan off and find any metal would it be most likly a barring in the dif and would that still give the code torque converter? Does a torque converter even make noise like that of a low tone or high tone of the speed of the car? It didnt slip when I drove it lafter this noise came up. It felt like it had a little bit of a drag sometimes but not all the time when I would drive it. I thank you for taking the time to write me back. Im just trying to find out if it is worth me fixing it or not. Its got 116,000 miles on it but new struts, tires, looks good and a little old lady owned it before me. And I will donate to this site also. Thank you Gary
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Monday, September 13th, 2010 AT 11:33 AM
Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
If you pull the pan and find metal, it could be a thrust bearing, gear teeth from the final drive, or even deposits from the torque converter. If the fluid was chalky, that usually indicates presence of water in the fluid.
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Tuesday, September 14th, 2010 AT 12:38 AM
Tiny
MCGARY65
  • MEMBER
  • 5 POSTS
I just had it serviced 6-8 months ago. But any how I put the car back together with a new hub assembly and I will let you know what happens.

Thanks again with your quik reply

Gary mc
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Tuesday, September 14th, 2010 AT 9:55 AM

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