Changing trans fluid on 2004.5 48RE

[Superdawg]

I thought I saw a thread where someone described flushing the trans fluid (at home) from a 48RE. I have the B&M drain plug for the pan. I thought they removed the rear line on the transmission and dumped out 4-5 quarts, refilled, and dumped again. Am I thinking of a 2nd Gen procedure? If anyone else knows the link, please post it for me. I already bought the Mopar+4 from Wally World. Thanks in advance.

 

[cerberusiam]

Works the same way no matter the generation. Sounds like you know all you need to.

 

[p-Bar]

Here is the info, i saved it in my email for future use:



It is ok in the driveway if you have three people. One to start, press brake and put in gear, one to disconnect the trans cooler line and redirect flow, and one to add fluid to the system.



I also switched to amsoil and used 20 quarts to the power flush. Had guy who was redirecting flow watch fluid and when looked new stopped engine and reconnected and check level. worked ok but would have been better to power flush.

 

[Superdawg]

trans service

Well, I did it in my driveway by myself. I found the following from fellow TDR member Matt.

-Remove pan (I added drain plug from Geno's) change filter, reinstall pan, same gasket

-Add 4 quarts new fluid

-Remove rear line at transmission, add two feet of 1/2" hose to end and run it into bucket.

-Start engine and idle in neutral till flow slows and shut off engine

-Add six quarts new fluid, idle in neutral till flow slows and shut off engine

-Add 4 quarts and reconnect line

-Run engine in neutral, refilling at the dip stick to proper level.



The oil was much darker than new. The magnet at the bottom of the pan had about 1/4" thick muck with metal particles (small) all over it. The filter looked dark but so was the fluid. All together, I flushed 14 quarts of fluid through it.



I actually had to drain a quart to get to the proper level. Which brings me to the following. I put in the B&M drain plug and installed the pan. The instructions (who reads 'em?) for the plug say hold the large nut with a wrench when loosening the smaller plug. This obviously wasn't important so I skipped it. After I had it all back together, when I drained the quart, I loosened the drain plug nut on the inside of the pan :{ Oh well, it was much quicker this time to drain the fluid (have drain plug now) drop the pan, tighten the nut and put it back together.



I haven't noticed any difference in drivability but I was a little past my 30k service.

 

[GECCO]

Here's another method



http://www.amsoil.com/faqs/ATF_and_Filter_Change_Procedures.pdf

 

[Mangler]

TBees, thanks for the post (or re-post).



I did exactly what you described, by myself in the driveway. Drain plug is in, no problems at all. Couldn't believe how easy it was. I did notice a difference in drivability... . truck feels more responsive.



This is exactly why became a member, thanks for the help!