transmission cooler

[cerberusiam]

Possibly 2nd gen,cooler behind turbo on block

In an 06???

Does not compute. :-laf

 

[Bob4x4]

In an 06???

Does not compute. :-laf

Lol I didn't see a sig. Went back and reread it saw the 06 buried in the text

 

[CTRice]

Now that I think back on the repair, I believe it was a coolant leak. The hoses that were on the cooler were made from a material that was being cut through be the factory installed aviation style worm-screw clamps. The replacement parts were a different rubber/silicone material and the replacement clamps were spring type without slots for a worm drive. At the time, I requested advice from you forum guys. Some directions did call this a trans cooler behind the turbo, but didn't appear to be a cooler. Perhaps it is some type of coolant to trans heat exchanger.

I am wondering what to expect when I start to pull my 28ft fifth wheel this Summer. Should I look into some type of add-on cooling device for lower Temps??

Once again, thanks for sharing your experience and knowledge.

 

[Bob4x4]

The hose you replaced goes to the cooler on the opposite side of the engine

 

[CTRice]

Thanks, Bob4x4. I will take a look to refresh my memory. As an aside, I have been perusing the website to find the way to add the truck details to my posts like your's show below the line. Can you give me some advice as to where to look or how to insert this info??

 

[Bob4x4]

Go to your user profile and scroll down to find the correct link

 

[cerberusiam]

Should I look into some type of add-on cooling device for lower Temps??

The OE cooling system is quite adequate for the ratings of the truck. You just need to understand what the temp means and where you are measuring it.

A shift kit and removal of the drain back check ball will gain you more than any add on cooler and solve more problems.

 

[CTRice]

What type and brand of shift kit are you guys recommending? Can a kit be installed with the trans in the truck or does it require an R&R ? If a shop does the installation, how much should I expect to pay? Thanks, Chuck

 

[cerberusiam]

The popular kits are TranGo and Superior. A good trans builder can make his own also. What kit gets used will sometimes depend on the person doing the work, they have their preferences.

A shift kit does require the transmission to be removed, it can be done by dropping the pan and valve body.

 

[CTRice]

The popular kits are TranGo and Superior. A good trans builder can make his own also. What kit gets used will sometimes depend on the person doing the work, they have their preferences.



A shift kit does require the transmission to be removed, it can be done by dropping the pan and valve body.

Thanks Cerb. I am a bit confused. Did you mean that the shift kit does "not" require transmission removal? I have had the pan off and I have removed the valve bodies on other mopar transmissions without removing the Trans from the vehicle. Are the 48re transmissions different enough to require removing the trans to remove the valve body? I admit, I am no expert, so I would appreciate a bit more information. Thanks again, Chuck

 

[Bob4x4]

does not need to be removed from vehicle

 

[Bob4x4]

21%20-%20Transmission%20and%20Transfer%20Case/Automatic%20-%2048RE/VALVE%20BODY/Removal
REMOVAL
Labor Operations: Click to display a list of Labor Operations associated with this procedure


The valve body can be removed for service without having to remove the transmission assembly.

The valve body can be disassembled for cleaning and inspection of the individual components.

The only replaceable valve body components are:

Manual lever.
Manual lever washer, seal, E-clip, and shaft seal.
Manual lever detent ball.
Throttle lever.
Fluid filter.
Pressure adjusting screw bracket.
Governor pressure solenoid.
Governor pressure sensor (includes transmission temperature thermistor).
Converter clutch/overdrive solenoid assembly and harness .
Governor housing gasket.
Solenoid case connector O-rings.


1. Shift transmission into NEUTRAL.
2. Raise vehicle.
3. Remove gearshift and throttle levers from shaft of valve body manual lever.
4. Disconnect wires at solenoid case connector (1).
5. Remove the transmission range sensor (2)(Refer to 21 - Transmission and Transfer Case/Automatic - 48RE/SENSOR, Transmission Range - Removal) .




6. Position drain pan under transmission oil pan.
7. Remove transmission oil pan and gasket.
8. Remove fluid filter from valve body.
9. Remove bolts attaching valve body to transmission case.
10. Lower valve body enough to remove accumulator piston and springs.
11. Work manual lever shaft and electrical connector out of transmission case.
12. Lower valve body (1), rotate valve body away from case, pull park rod (3) out of sprag, and remove valve body .

 

[cerberusiam]

If it wasn't clear, you do NOT have to remove the transmission to do the shift kit. A 48RE is nothing more than a 727 with beefed up internals, electronic governor, a lockup clutch, and an OD unit hung on the back. Proceed as you would with any other Mopar transmission.



If you are going to do a shift kit, billet front band strut, billet accumulator, and billet front servo is highly recommended.