1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

strange raddling nosie at idle from tranny tunnel

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Old 10-08-2011, 01:00 AM
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Default strange raddling nosie at idle from tranny tunnel

i was letting my truck idle today and when it fully warms up and your at idle it makes a strange vibrating raddle from the tranny tunnel and shakes the hole truck. what could this problem bee? maybe torque convertor or fly wheel?
 
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Old 10-08-2011, 07:32 AM
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Transfer case linkage/shifter?
 
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Old 10-08-2011, 12:41 PM
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ive held it in place and it still happens
 
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Old 10-08-2011, 01:27 PM
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Pilot bearing?
 
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Old 10-08-2011, 02:04 PM
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ia it possible? i really hope its not that im not in any position to pull the tranny!
 
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Old 10-08-2011, 02:34 PM
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Not real sure I've never messed with an automatic. Everything i own is standard, just thought is throw it out there
 
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Old 10-09-2011, 02:40 AM
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thanks for the advice found out it is the bolts from the torque convertor to the fly wheel are loose and getting worst i have to do it today
 
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Old 10-09-2011, 09:38 AM
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One of the more common driveline failures on automatics is the flexplate. I'd consider installing a better flexplate, as long as you're going in there. The fact that it came loose could also mean the flexplate itself has been compromised and already started a hairline crack somewhere.

At least inspect it very carefully while putting it back together.
 
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Old 10-09-2011, 10:51 AM
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I know its a pita tolook in there but make sure the holes arent hogged out from the bolts being loose. and just for your info the 2nd gen flexplate is no different from 1st except for being shotpeened, which just stress relieves the metals surface.
 
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Old 10-09-2011, 01:25 PM
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ya im gonna inspect very well under there and the i pray the flex plate isnt cracked i really dont have the money right now for one
 


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