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05-26-2015, 10:43 PM
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#1 |
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Registered User
Join Date: Nov 2009
Location: Nebraska
Posts: 1,034
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TH400 howl
Anyone ever have a TH400 with a howl between, say, 20-30 mph? Only when torque is applied, not coasting. This is with a 4.57 rear, btw. Any thoughts? Bearing?
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05-26-2015, 10:46 PM
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#2 |
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Join Date: Feb 2015
Location: San Diego, CA
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Re: TH400 howl
Are you sure it's the trans? I've had rearend a make some god awful noises but never an automatic trans.
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05-26-2015, 10:52 PM
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#3 |
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Location: Nebraska
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Re: TH400 howl
It seems to be the trans. The rear end seems quiet. Replaced carrier bearing in the drive shaft as well.
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05-26-2015, 11:12 PM
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#4 |
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Re: TH400 howl
Check the converter
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05-27-2015, 10:53 PM
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#5 |
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Location: Nebraska
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Re: TH400 howl
The torque converter? Check for what, specifically?
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05-27-2015, 11:10 PM
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#6 |
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Location: San Diego, CA
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Re: TH400 howl
When they go bad they growl/howl. You should hear it with the rear on jack stands. Have someone help you! Don't climb under with the truck in gear.
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06-25-2015, 11:35 PM
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#7 |
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Join Date: Jun 2015
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Re: TH400 howl
I would think if its the TC, the noise most likely would be heard all the time....the noise is being heard at a specified road speed range. Correct ? Maybe a torrington bearing in the T400 is coming apart....just a thought. (planetary area) Drop the pan on the trans, maybe piece of the bearing in the pan along with a bit of metal... Good Luck.
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