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rob25
Dodge Dakota
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12/15/2004
13:43:20
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 Subject: whinning noise in reverse?
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Message:
The only time my truck makes a weird noise is in reverse. The noise is a low pitched whinning. The noise is the loudest when my truck is cold and backing out of the garage in the morning but it still happens when the truck is warm the noise is just not as loud. Then as soon as i shift into forward the noise stops. Does anybody else have this noise and if so do you know what the noise might be. Thanks
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JasonB
Dodge Dakota
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12/15/2004
13:52:22
|  RE: whinning noise in reverse?
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Message:
Service Bulletin NO: 21-08-99
SUBJECT: "Buzz", "Whining", Or "Moaning" Like Noise From A Cold Transmission When Reverse Is Selected.
DATE: April 30, 1999
OVERVIEW:
This bulletin involves replacing the transmission regulator valve.
NOTE: THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A RE OR RH AUTOMATIC TRANSMISSION.
SYMPTOM/CONDITION:
Some vehicles may exhibit an intermittent noise from the transmission when reverse gear is selected. This noise has been described as a "buzz", whining", or "moaning" like noise. The noise is most noticeable when transmission fluid temperature is below 38 C. (100 F.). The condition is caused by a resonance of the transmission regulator valve system.
Other items may cause regulator valve resonance, including air ingestion into the valve body or out of specification parts. These two items may be the result a possible cracked pump housing, a torn pump gasket, an under filled transmission, a restricted fluid filter or cooler flow, or an out of specification valve and/or valve body. You should remember these additional items / components when you perform your diagnosis.
Vehicles built prior to August 1, 1995 may experience this condition if either a transmission valve body or an entire automatic transmission was replaced with components manufactured after August 1, 1995.
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rob25
Dodge Dakota
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12/15/2004
18:29:10
| RE: whinning noise in reverse?
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Message:
Thanks Jason.
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Turbostang
Dodge Dakota
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12/16/2004
10:47:16
| RE: whinning noise in reverse?
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Message:
Out of spec valve body huh.. I guess that explains why mine whines in reverse when cold, since I installed a Transgo shift kit..
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