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torque converter rattles

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Old Jan 5, 2007 | 12:29 AM
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torque converter rattles

I have a 95 F350 4x4. The torque converter is making a loud rattling noise. The tranny still shifts fine. I wonder if I can just change the converter without rebuilding the tranny. I don't know why it's rattling. Any suggestions?

If I have to rebuild the transmission, I want to know if I can use the one I have from a 94 2-wheel drive without a transfer case. What do I have to do to hook the transfer case to the tranny?
 

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Old Jan 5, 2007 | 04:50 AM
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Old Jan 5, 2007 | 06:53 AM
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You can change a converter without rebuilding your transmission, but the transmission has to be removed to change the converter.
 
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Old Jan 5, 2007 | 08:20 AM
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are you sure its actually the tc that is causing the noise... the flex plate that attaches to the tc could have loosened up and be making to noise which would make more sense. Either that or the inspection cover is loose.
 
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Old Jan 5, 2007 | 09:13 AM
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Originally Posted by BigRyanKP
are you sure its actually the tc that is causing the noise... the flex plate that attaches to the tc could have loosened up and be making to noise which would make more sense. Either that or the inspection cover is loose.
BigRyan makes a great point. Get under your truck and remove the inspection cover. It may just be some loose bolts.
 
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Old Jan 5, 2007 | 10:15 AM
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Yup, check the bolts holding the torque converter to the flex-plate.

Either that, or the inspection plate is loose.

Good catch guys!
 
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Old Jan 5, 2007 | 12:38 PM
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what about changing the trans?

Good ideas, guys, but I've already thought of that. I took the cover off, and I've already checked for loose bolts on the plate. That's not it. I put a hose (cut-off garden hose) up to the tc (so I can hear where the noise is coming from) and the noise is coming from inside. It sounds like bearings are rolling around on the inside. The noise is really loud until the converter locks-up, then it quits.

I already have a new 2-wheel drive transmission from a 94 F350 and I'm still needing to know how to hook up a transfer case to a 2-wheel drive transmission, which is really what I'm thinking i'm going to have to do, since I really can't afford to rebuild the tranny on the 4-wheel drive right now.
 

Last edited by blacksheep123; Jan 5, 2007 at 01:09 PM.
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Old Jan 5, 2007 | 01:04 PM
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Originally Posted by blacksheep123
I have a 95 F350 4x4. The torque converter is making a loud rattling noise. The tranny still shifts fine. I wonder if I can just change the converter without rebuilding the tranny. I don't know why it's rattling. Any suggestions?

If I have to rebuild the transmission, I want to know if I can use the one I have from a 94 2-wheel drive without a transfer case. What do I have to do to hook the transfer case to the tranny?
Hello
Are the 95 and 94 the same model and same engine size?

Mike
Level 10 Tech
973-827-1000
 
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Old Jan 5, 2007 | 01:10 PM
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yes. The only diff is 94 is 2-wheel drive and the 95 is 4X4.
 
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Old Jan 5, 2007 | 01:14 PM
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Change the converter.

Especially as the noise goes away when it locks up.
 
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Old Jan 5, 2007 | 06:38 PM
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I've had that problem in the past and It turned out to be a broken flex plate in both situations. 91 7.3 and a 95 7.3 turbo.
 
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Old Jan 5, 2007 | 10:33 PM
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It would be great if that was the case, but I don't think so. If it was a broken flex plate, it should rattle all the time, but mine stops making the noise when the converter locks-up.
 
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Old Jan 7, 2007 | 08:44 PM
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So did these one's.

Derek
 
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Old Jan 8, 2007 | 06:15 PM
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I can see where the tc bolts to the flex plate. If the flex plate is broken it would have to be broken between the crank shaft and the converter where the crank shaft bolts are and i won't know that till i pull the trans. Where were your fp's broken?
 
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Old Jan 9, 2007 | 09:36 AM
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I believe these guys had the flexplate break right near where it bolts to the crankshaft.
 
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