Can a torque converter go bad???
Race Director
Joined: Oct 2000
Posts: 16,477
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Re: Can a torque converter go bad??? (Daniel DK)
Yes, there are many things that can go wrong, the number one reason a torque converter dies if FOD, foreign object damage, from the sprags or clutches letting loose and running through the blades, bending them. If this doesn't kill the converter, it will cause vibration.
All it is is pretty much a complicated centrifical wet clutch, and eventually the clutch surfaces will wear out, usually the gear clutches wear out much sooner though. I think a symptom of this would be an excessively high stall, but one that never quite locks up.
I'm sure there are others that I'm not aware of also. What's yours doing?
All it is is pretty much a complicated centrifical wet clutch, and eventually the clutch surfaces will wear out, usually the gear clutches wear out much sooner though. I think a symptom of this would be an excessively high stall, but one that never quite locks up.
I'm sure there are others that I'm not aware of also. What's yours doing?
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,135
Likes: 17
Re: Can a torque converter go bad??? (NoWorries)
I'm sure there are others that I'm not aware of also. What's yours doing?
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,135
Likes: 17
Re: Can a torque converter go bad??? (NoWorries)
Ok i've narrowed it down a bit, the drivetrain after the torque converter is fine! In a full stop i step on the brake and give it a little throttle and the noise starts right about 1200 rpm. Since nothing after the torque converter is moving, it has to be somthing before the tqverter or the tqverter.. - I'm gonna pull off the exhaust system and do pressure a test including the manifold just to be COMPLETLY shure. - anybody have any ideas about what could be making that rumbeling sound :confused:.
Thanks all :cheers:
Thanks all :cheers:
Racer
Joined: Feb 1999
Posts: 475
Likes: 0
From: Sellersburg Florida
Re: Can a torque converter go bad??? (Daniel DK)
You have not said anything about fluid level or the color of the trans fluid.
If it is not bright red and have a sweet smell, you have problems. Dark fluid is a sign the clutches and bands are shredding this could damage the tq conv.
If it is not bright red and have a sweet smell, you have problems. Dark fluid is a sign the clutches and bands are shredding this could damage the tq conv.
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Re: Can a torque converter go bad??? (Daniel DK)
I blew my convertor on my old Iroc, the car would not move at all.
When in "D" and I hit the gas, just the motor would rev and the car would not move.
This was a very cheap "GER" brand convertor.
Vic
When in "D" and I hit the gas, just the motor would rev and the car would not move.
This was a very cheap "GER" brand convertor.
Vic
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,135
Likes: 17
Re: Can a torque converter go bad??? (CROOZN)
fluid level is ok - and the color is red - brownish but still pretty transparent. I guess i shuld change it...... allthough i wouldn't think that it would cause such noises..... - well i'm gonna change it :) - is it somthing i can do my self - i have access to a lift - also what fluid shuld i put in - any recomendations??
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Team Owner
Joined: Apr 2001
Posts: 22,267
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From: Dallas TX
Re: Can a torque converter go bad??? (DoubleAught)
When mine went bad, it made the car shudder badly at certain rpm/loads.
[Modified by Glock'94, 9:12 PM 2/14/2002]
Burning Brakes
Joined: May 2000
Posts: 1,181
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From: Puyallup Washington
Re: Can a torque converter go bad??? (Daniel DK)
Beat on your converters with a rubber hammer, see if they rattle. Remove the dust cover on the converter and see if the noise is gone. If it is check the crankshaft end play, if over .007 you have too much. Make sure the flexplate is not contacting any parts of the starter ( I have seen so much end play that the ring gear contacts the starter drive stop ring). Yes, the converter shares fluid with the transmission.
[Modified by moffitt, 9:36 PM 2/14/2002]
[Modified by moffitt, 9:36 PM 2/14/2002]
Team Owner
Joined: Apr 2001
Posts: 22,267
Likes: 3
From: Dallas TX
Re: Can a torque converter go bad??? (moffitt)
Can a bad converter rattle when sitting there at idle?!?!? I wonder if that rattling noise I have could be from the converter!! It DEFINITELY got louder when I got back into town and stopped at a few lights.
[Modified by Glock'94, 12:36 AM 2/15/2002]
[Modified by Glock'94, 12:36 AM 2/15/2002]
