Another 48R Question

[jlwelding]

How many qt will it take to just change filter? And how many will flush take? 18qt is what my buddy's machine holds.

[MnTom]

I believe it holds about 12 quarts, but I have read that flushing is not a good thing to do since there is a possibility of dislodging some gunk and plugging up something else. You can figure about 7 quarts to change the filter.

[jlwelding]

She only has 39k on the ole clock. I hope it dont have gunk build up.

[AH64ID]

Flushing is fine if the fluid isn't burnt. Most flushing machines only use the pump in the trans so no more pressure/flow than driving down the road. The only time a flush can "damage" a trans is when the fluid/trans are already cooked, the new fluid is too much and is the straw the breaks the camels back, but the damage is already there. I show a drain and fill as 4.1 quarts and a total capacity of 17 qts.

[retirednak]

Onced all flushed and clean,don't forget to do the filter. Most places around my neck of the woods 99% don't touch the trans filter. I asked one place why and was told since the trans now has all new fluid a filter change isn't needed. Most of the places were the quick lube type, change oil and filters and squirted grease when needed and of course trans flush. I even called one trans shop and was told the same thing,I won't ever go there for trans repairs.

[ccmckee]

I always just did a drain and filter change on my auto in my '96, i was told as well that flushes are a no no by a tranny guy.

[jlwelding]

Ya he also wont's to rebuild your trans later down the road.

[MnTom]

This is copied from a thread over on DieselRam by a well known and respected transmission guru there:

Q: Fluid changes, when should I have my trans flushed? A: It is my professional opinion that your trans should never need a flush as long as proper maintenence intervals are performed, at least as often as your owners manual discribes. Drop pan, change filter and fill with the proper type of fluid thats also prescribed in the manual. It will vary types from one generation to another. The reason to avoid the flushes is because there is only ONE correct procedure to do this type of service. But I have found numerous instances, including dealerships that break it up into profit procedures, not proper preventitive maintenence procedures. Q: Can I change more often than the manual reccommendes? A: YES! Absolutely. There is absolutley no way to over service anything. In fact the harder you work your trans the more often it should be done. Q: Is there a better fluid than what it came with? A: Yes and no. Yes because there are some group 4 synthitics that are on the market, and in extreme situations can provide better service. However I STRONGLY suggest that you stay with the OEM types while your under OEM or even extended warranties. DC is VERY picky about your warranty and sometimes will test for the correct fluid type before approving any warrantable repairs. Also OEM fluids are a group 3 synthitic and are excellent fluids with the proper levels of properties that exactly match your trans needs. Never consider any aftermarket fluids or external filteration to extend the service life of your trans fluid. It is NOT an engine, its a trans and the filter is in the pan and has to be changed. Q: When should I adjust my bands? A: Here again it is my professional opinion that this should not be done. If your trans works properly then leave the adjustments alone. There are adjustment bolts on the trans, one external, one in the pan. The one external is second gear, the one in the pan is for reverse and manual low brake. Adjusting the band does not change shift points, or correct slipping. The VB, computer and throttle valve cable (untill 05 anyway, no more cable to adjust) is responsible WHEN a shift is to happen. IF its slipping or has no second or reverse then the band for that gear has worn out, adjustments will only cause further damage. Just like running your brake pads to metal against the rotor, your only grinding metal.

http://www.dieselram.com/showthread.php?t=180131

[ccmckee]

That would be the guy, and my truck had 467,000km's on it when i sold it with the rebuild and build up being done at 220,000km's to handlethe extra power i had added.

[Perrysburg Dodgeboy]

With that low of mileage I would just drop the pan, change the filter and add the fluid...4 quarts as previously noted. Don

[Chip_er]

What would you do if someone else put an un-known brand fluid in the trans, flush it?Thanks

[gassernomore]

What would you do if someone else put an un-known brand fluid in the trans, flush it? Thanks

Is the fluid for a Dodge? Or are you talking just the name on the product?

[Chip_er]

Not sure what they put in it! I bought this truck 2 weeks ago, went to dodge dealer to give me a check up on the truck. he tells me the trans fluid smells and looks different (wasn't burnt as per tech.) than the one they use! the tech. suggested I power flush and refill with the dodge brand! and replace the solenoid + transducer + filter and adjust the bands.Reading all these treads about automatic trans and there problems I'm thinking on swapping for a manual one.I wish I knew if the computer and acc. would all fit a 2003 from a 2001 3500.Thanks

[lucky1]

i'm really not a big believer in transmission flushing, lots of valve to move to really flush and i'm pretty sure the flusher don't stroke the valvebody. and whats the sense of flushing if you don't change the filter, that would be like taking a ____ and not wiping your ___:banghead:

[AH64ID]

that would be like taking a ____ and not wiping your ___:banghead:

But taking it is still better than keeping it in!! I have always flushed my auto's, its the best way to get as much fluid out as possible.

[lucky1]

But taking it is still better than keeping it in!! I have always flushed my auto's, its the best way to get as much fluid out as possible.

if your gonna spend might as well spend smartly. labor would be the same and you would have a better piece of mind, knowing at least you dropped the pan to have a look

[hd99fxr3]

I just change fluid and filter in my '06 2500. When all was said and done it took 7qts of ATF+4. I will be adding a drain to the pan the next time I do this.