Serpentine Belt Replacement and reverse rattle?
Thread Starter
Joined: Dec 2004
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Serpentine Belt Replacement and reverse rattle?
I'm new, read back about 6 pages and see nothing on replaceing the serpentine belt? I havent even looked yet but is it a 20 min job or a 20hr job to replace yourself? and is their any special tools required?
And could this possibly be related to a noise that only happens in reverse? The noise seems to be comming from the engine compartment like a loose metal shroud but I have looked everywhere and nothing seems loose?
I Love this rig it is great for offroading with the guys and stylin enough for the wife to drive, it sucks gas but it is the price to pay if you want to play!
TIA for any info!
And could this possibly be related to a noise that only happens in reverse? The noise seems to be comming from the engine compartment like a loose metal shroud but I have looked everywhere and nothing seems loose?
I Love this rig it is great for offroading with the guys and stylin enough for the wife to drive, it sucks gas but it is the price to pay if you want to play!
TIA for any info!
Rookie
Joined: Sep 2004
Posts: 71
Likes: 0
From: Salinas, CA
RE: Serpentine Belt Replacement and reverse rattle?
Scott,
I just replaced the serpentine belt on my 99 Durango, and it only took about ten minutes, and a 15mm wrench, if I remember correctly. The automatic tensioner is on the upper left side, if looking into the engine compartment from the front of the vehicle. All you have to do is put the wrench to it, remove just enough of the tension to slip the belt off (making a mental note of which way the belt is on, too, but you have a diagram on the inside of the hood to help you anyway), and slide the new one in. I'm not an excellent mechanic or anything, and this was the first serpentine belt I ever changed , and found it to be surprisingly easy. However, as for your noise, couldn't tell you anything about that. Hopefully it will disappear after you change the belt. Good Luck!
I just replaced the serpentine belt on my 99 Durango, and it only took about ten minutes, and a 15mm wrench, if I remember correctly. The automatic tensioner is on the upper left side, if looking into the engine compartment from the front of the vehicle. All you have to do is put the wrench to it, remove just enough of the tension to slip the belt off (making a mental note of which way the belt is on, too, but you have a diagram on the inside of the hood to help you anyway), and slide the new one in. I'm not an excellent mechanic or anything, and this was the first serpentine belt I ever changed , and found it to be surprisingly easy. However, as for your noise, couldn't tell you anything about that. Hopefully it will disappear after you change the belt. Good Luck!
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RE: Serpentine Belt Replacement and reverse rattle?
tst31 Thanks! It was a snap, the belt does not even go over the fan so the shroud doesnt even have to be removed suprisingly easy 
This did not however get rid of the reverse noise, it is like a dull whine when only in reverse, it is not that loud really- you cant even here it over the engine if you give it any gas. Does anybody know if the auto trans has a seporate reverse clutch?
This hasent really bothered me untill now I was hopeing it would go away with the belt, this weekend I'll have to get out the rubber hose and narrow down where the noise is comming from and get back.
I also put in some XD Extreme bulbs in D's headlights 100W/130W. WoW what a difference! Well worth the $18 on Ebay, we will see how long they last tho.....
This did not however get rid of the reverse noise, it is like a dull whine when only in reverse, it is not that loud really- you cant even here it over the engine if you give it any gas. Does anybody know if the auto trans has a seporate reverse clutch?
This hasent really bothered me untill now I was hopeing it would go away with the belt, this weekend I'll have to get out the rubber hose and narrow down where the noise is comming from and get back.
I also put in some XD Extreme bulbs in D's headlights 100W/130W. WoW what a difference! Well worth the $18 on Ebay, we will see how long they last tho.....
Joined: Jan 2005
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From:
RE: Serpentine Belt Replacement and reverse rattle?
My 99 makes that weird noise when it's in reverse... I'm hoping a transmission filter/fluid change will fix it. If not I guess I'll be headed to the transmission shop to get the tensions checked on my bands.. mine is due ot have them checked/adjusted now.
Champion
Joined: Mar 2004
Posts: 2,703
Likes: 2
From: Bremen, GA.
RE: Serpentine Belt Replacement and reverse rattle?
Just some info i found....................
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).
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).
