I really like the results! The transmission no longer hunts between 1st and 2nd at low speed. The overall performance of the tranny is better too with firmer, more precise shifts. I highly recommend it.


TSB 21-009-07
48RE Transmission - 1-2 Shift Hunt At Light Throttle
Visit Geno's Garage
for Truck accessories.


--------------------------------------------------------------------------------

Date: May 24, 2007

Models: 2004 - 2007 (D1/DH/DR) Ram Truck (2500/3500)

Overview:
This bulletin involves the replacement of the governor pressure solenoid valve
in the transmission valve body.

Symptom/Condition:
The customer may experience a 1-2 shift transmission hunt during light throttle application. This
condition may be due to a governor pressure solenoid valve.

Diagnosis:
If the customer experiences the above condition perform the Repair Procedure.

Parts Required: Qty. Part No. Description
1 04617210 Valve, Governor Pressure Solenoid
4 05013457AA ATF+4 Automatic Transmission Fluid
AR 02464324AC Gasket, Transmission Oil Pon (Note: Original pan
gasket is reusable and should not require replacement).


Repair Procedure: 1. Raise the vehicle on a suitable lift. Turn the ignition switch to the "OFF" position. Remove
the ignition key from the ignition switch.
2. Remove the transmission fluid (oil) pan and pan gasket. Clean and save the pan gasket
for later use during reassembly.
3. Disengage the wire connector to the governor pressure solenoid valve (Fig. 1).
4. Remove the screws used to secure the governor pressure solenoid valve retainer to
the transmission valve body.
5. Remove the old govemor pressure solenoid valve from the transmission valve body.
6. Clean the transmission housing and oil pan gasket surfaces.
7. Lubricate the o-rings on the new governor pressure solenoid valve.
8. Align the governor pressure solenoid valve to the bore in the valve body.
9. Install the governor pressure solenoid valve to the valve body.
10. Install the governor pressure solenoid valve retainer and attaching screws to the valve
body.
11. Connect the wire connector to the governor pressure solenoid valve.
12. Install the transmission fluid (oil) pan and pan gasket (saved earlier) to the
transmission. Tighten attaching bolts to 13.6 Nm (125 in. lbs.).

Fig. 1 Governor Solenoid And Pressure Sensor

1 - GOVERNOR PRESSURE SENSOR
2 - GOVERNOR PRESSURE SOLENOID VALVE
3 - ELECTRONIC GOVERNOR
13. Lower vehicle.
14. Add automatic transmission fluid to the transmission.
15. Verify correct transmission fluid level.


Policy: Reimbursable within the provisions of the warranty.

Time Allowance:

Labor Operation No: Description Amount
21-96-05-90 Valve, Transmission Governor
Pressure Solenoid - Replace (B) 0.7 Hrs.

Failure Code:

ZZ Service Action

 

I'm glad you like it.. I need to get it done on my truck, it's driving me crazy...
Are all the shifts better?

 

Yes, it seemed to firm up the shifting overall, even my son noticed it.

 

How much did this cost you?

 

No charge, was warranty.

 

My truck needs it done for the third time, 45,000 and change. This time it will cost me a hundred dollars on the extended warranty.

 

BGOTT.Show them receipts/history of the previous work.The service manager more then likely can self approve/override the deductible due to history of problem.FILL out your SIGNATURE also so we know what year/model truck you have.

 

That sucks, wonder if the dealer knows what they are doing.............

 

Ditto, just had to have it done on my 07. Didn't really realize how sloppy the shifting had been until the 1-2 hunt showed up. Shifts better than ever now.

 

Its just a solenoid replacement and a updated flash.Kinda hard to foul up I would think.

 

Just had this done to my truck and it does drive better but my fuel mileage went from just over 19mpg to just over 14mpg and that is calculating the mileage not the over head computer.

 

I had mine done under warranty too. It solved the problem. Mine was bad....the 1-2 hunt was everytime. Annoying.

 

anyone know how much the dealer would charge if out of warranty? I have had this problem for a long time. tookl it to the dealer while in warranty and tehey couldnt figure it out let alone fix it. if too expensive, i could just replace teh solenoid myself and just have them flash it

 

the part is ~$120 bucks, plus cost of fluid.

it's pretty simple to do yourself, the hardest part is not spilling the fluid.

i would adjust the bands & do the filter while you are in there, thats three jobs at once.


i wrote up a simple how to with pix

most of the pix are on the photobucket link in that thread

hth.

 

I had mine done last year, it made it worse. I just drive around it now




Tim