torque converter whine
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Freshman User
Joined: Apr 2005
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torque converter whine
I was just wondering, what causes a torque converter to whine when its going bad, do they whine if they are not going bad? It seems to me everytime I hear a "whiner" it goes bad in a year or less, "depending on the driver". I also had someone tell me that torque converters don't go bad that often, but for some reason I come across more fried converters than anyone I know.
1. how is that whining noise produced
2. can an out of adjustment tv cable ruin a converter
3. ?
is there any good sites that anyone knows of for trans that go beyond the basic operations "most just tell you how it all works I need specs"
thanks to all for sharing your thoughts and comments.
1. how is that whining noise produced
2. can an out of adjustment tv cable ruin a converter
3. ?
is there any good sites that anyone knows of for trans that go beyond the basic operations "most just tell you how it all works I need specs"
thanks to all for sharing your thoughts and comments.
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Originally Posted by cj091184
1. how is that whining noise produced
2. can an out of adjustment tv cable ruin a converter
3. ?
2. can an out of adjustment tv cable ruin a converter
3. ?
2) Depends on the transmission. An AOD, which does have a TV cable, doesn't have a lockup converter. If the TV cable is out of adjustment it will overheat the transmission, which will kill the converter too just because of the heat and debris.
Converter bearing failures are somewhat rare. Most "converter whines" are actually pump whines. The pump whine is usually produced by the pump cavitating. That is the pump cannot draw enough fluid through the filter and creates voids where the fluid should be. That will kill a pump pretty quick. A pump whine can also result from the pump coming apart.
Steve
'95 Clubwagon XLT
Freshman User
Joined: Jan 2007
Posts: 44
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Whining transmission pump on E40D
Steve,
Appreciate the info. I just changed the trans two weeks ago.
My major concern was seeding the torque convertor properly.
If this was done incorrectly would it cause the whining?
What about changing the filter? would this help at all?
Is there an additive I can use to prolong the life of whining trans?
What about having the to pump changed (NOW) while all the other functions of the tranny seem to be working properly.
My truck is a daily driver.... about 22mi round trip. I have the extra large volume radiator installed... the temp needle stays on the N and O of normal throughout all driving ranges... will this help? I'm just low on cash now...
I need this tranny to get through to summer.
Thanks.
boonie
Appreciate the info. I just changed the trans two weeks ago.
My major concern was seeding the torque convertor properly.
If this was done incorrectly would it cause the whining?
What about changing the filter? would this help at all?
Is there an additive I can use to prolong the life of whining trans?
What about having the to pump changed (NOW) while all the other functions of the tranny seem to be working properly.
My truck is a daily driver.... about 22mi round trip. I have the extra large volume radiator installed... the temp needle stays on the N and O of normal throughout all driving ranges... will this help? I'm just low on cash now...
I need this tranny to get through to summer.
Thanks.
boonie
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Originally Posted by boonie
Appreciate the info. I just changed the trans two weeks ago.
My major concern was seeding the torque convertor properly.
If this was done incorrectly would it cause the whining?
Was it a used or rebuilt unit? A used unit there is no telling what may be wrong but a rebuilt unit could easily have a converter with a bad bearing in it. The pump could be bad but the converter bearing is more likely on a fresh rebuild.
Originally Posted by boonie
What about changing the filter? would this help at all?
Is there an additive I can use to prolong the life of whining trans?
Originally Posted by boonie
What about having the to pump changed (NOW) while all the other functions of the tranny seem to be working properly.
Originally Posted by boonie
My truck is a daily driver.... about 22mi round trip. I have the extra large volume radiator installed... the temp needle stays on the N and O of normal throughout all driving ranges... will this help? I'm just low on cash now...
I need this tranny to get through to summer.
Good Luck.
Steve
'95 Clubwagon XLT
Freshman User
Joined: Jan 2007
Posts: 44
Likes: 0
Steve,
Thanks again... if it's pump, what would be the likely first signs of (total) failure...
And the same for the converter.
I'm going to lay the truck up and only use it only when I absolutely need to.
Appreciate the info.
boonie
Thanks again... if it's pump, what would be the likely first signs of (total) failure...
And the same for the converter.
I'm going to lay the truck up and only use it only when I absolutely need to.
Appreciate the info.
boonie
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Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Metal in the pan would be the first signs. A bad pump whines because the gears are chewing into the pump housing. You should see aluminum debris in the bottom of the pan. AOD pumps are not a weak point but they do fail. An AOD pump failure is more comon because it was ingesting metal debris.
A converter bearing can make noise for some time before it fails. On a newly rebuilt converter it could be that a bad bearing was installed. If an existing converter begins to whine, then its probably a more impending failure as either the bearing is going to it ate something.
Steve
'95 Clubwagon XLT
A converter bearing can make noise for some time before it fails. On a newly rebuilt converter it could be that a bad bearing was installed. If an existing converter begins to whine, then its probably a more impending failure as either the bearing is going to it ate something.
Steve
'95 Clubwagon XLT
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Joined: Jul 2003
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Originally Posted by Clubwagon
2) Depends on the transmission. An AOD, which does have a TV cable, doesn't have a lockup converter.
The AOD has a mechanically applied lockup converter. It locks 60% in third gear and 100% in fourth gear.
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
Originally Posted by Casey
That should say, "doesn't have an electronically controlled lockup converter."
The AOD has a mechanically applied lockup converter. It locks 60% in third gear and 100% in fourth gear.
The AOD has a mechanically applied lockup converter. It locks 60% in third gear and 100% in fourth gear.
Steve
'95 Clubwagon XLT
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