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trans whine

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  #1  
Old 10-15-2012 | 01:35 PM
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Default trans whine

i posted this in the dakota forum and didn't realy get much. got a 94 2wd dakota 318 auto. lost second and third, had it rebuilt. lasted a while then started whining in drive or reverse, no noise in park or neutral. short time later stopped down shifting to first at a stop. have to pull in manualy. up shifts fine. checked everything external, not low on fluid. any info would help before i pull it out again. thanks
 
  #2  
Old 10-15-2012 | 01:47 PM
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Could start by dropping the pan, check and see if anything is in there that shouldn't be, clean or replace the solenoids and put in a new filter. See if that helps any....

Edit:

Another member noticed a "growling" noise from his transmission, may not be related to your problem but wouldn't hurt to check it out:

https://dodgeforum.com/forum/2nd-gen...d-so-am-i.html
 

Last edited by stewie01; 10-15-2012 at 02:11 PM.
  #3  
Old 10-15-2012 | 02:03 PM
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Is the whine noise related to engine speed?
 
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Old 10-15-2012 | 02:41 PM
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Ha, mine whines to but only in reverse and only when its cold out. been that way for several years now.
 
  #5  
Old 10-15-2012 | 05:23 PM
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it whines like a ford power steering pump but not constant with engine speed. hard to hear over loud exhaust, seems to change when it shifts also
 
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Old 10-15-2012 | 09:29 PM
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As stewie01 stated you should drop the pan, as that can be an good indicator of problems and your starting point..Have you had any work done to the drivetrain?
 
  #7  
Old 10-16-2012 | 01:25 AM
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Here is an old TSB that may help.

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.

DIAGNOSIS:
Using the Diagnostic Scan Tool (DRB III®) with the appropriate Diagnostics Procedure Manual, verify all engine and transmission systems are functioning as designed. If Diagnostic Trouble Codes (DTC’s) are present, record them on the repair order and repair as necessary before proceeding further with this bulletin.

For 1996 and 1997 model year product, review Technical Service Bulletin 21-11-97 Rev A to determine if it applies to this vehicle before attempting to complete the analysis or repairs described in this bulletin.

In most instances, the sump temperature of vehicles exhibiting transmission regulator valve resonance in reverse has been less than 38 C. (100 F). If possible, allow the suspect vehicle to remain parked in a cool place overnight. Then perform the following steps:

Set the vehicle parking brake.
Start the engine (make certain windows are closed, to eliminate outside noise).
With brakes applied, place the transmission selector lever in reverse.
Listen for any buzz/moaning/whining like noises as the transmission sump temperature rises to normal operating temperature (180 – 210 degrees F).
If a buzz/moaning/whining like noise is present, perform the Repair Procedure.
PARTS REQUIRED:
Qty Part No. Description
1 04130169 Valve Steel Transmission Regulator
1 02464324 Gasket, Transmission Pan
AR 05010124AA Fluid, ATF Plus 3, Type 7176E


EQUIPMENT REQUIRED:
Qty Part No. Description
1 C-3763 Gauge Tool, Throttle Pressure Adjustment


REPAIR PROCEDURE:
Following the procedures in the applicable service manual, remove the valve body from the transmission (Refer to Group 21 of the appropriate Service Manual – TRANSMISSION AND TRANSFER CASE – AUTOMATIC TRANSMISSION section - REMOVAL AND INSTALLATION).
Remove the screws holding the adjusting screw bracket and replace the regulator valve with p/n 04130169 (Figure 1). Install the adjusting screw bracket
Verify and adjust, if necessary, both the line pressure and the throttle pressure settings by following the procedures in the service manual (Refer to Group 21 of the appropriate Service Manual –TRANSMISSION AND TRANSFER CASE – AUTOMATIC TRANSMISSIONsection – ADJUSTMENTS – VALVE BODY).
Following the procedures in the appropriate Service Manual, re-install the valve body with the new regulator valve into the transmission.
After filling the transmission with the proper automatic transmission fluid, and verifying correct fill level, check the throttle valve cable adjustment. Make appropriate adjustments, if necessary, following the applicable service manual procedure (Refer to Group 21 of the appropriate Service Manual –TRANSMISSION AND TRANSFER CASE – AUTOMATIC TRANSMISSION section – ADJUSTMENTS – TRANSMISSION THROTTLE VALVE CABLE ADJUSTMENT).
POLICY:
Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Op. No. Time
21-95-01-90 1.2 Hrs
 
  #8  
Old 10-16-2012 | 07:09 PM
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i wish it was that reverse groan! unfortunatly i think it's a little more than that. gonna pull the pan to look for crap and try cleaning the solenoids? not to involved taking them out after the pan is off? would those cause the no first gear downshift?
 
  #9  
Old 10-16-2012 | 07:14 PM
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Originally Posted by Derick C.
Ha, mine whines to but only in reverse and only when its cold out. been that way for several years now.
Mine's done that for over 60k miles. The harder I accelerate, the louder it is. I've been thinking it is related to the check valve issue.
 
  #10  
Old 10-16-2012 | 07:16 PM
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I guess Master Techs post answered that.
 



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