Auto gear box reving no power

Hi guys the other day i noticed when first using my car the rpm was very high before it would change gear when it got warm it seemed to work better, I also noticed on the way home it started to rev high and seem to have very little power, could this be the transmission fluid needs changing?

It could be; and also its worth checking the level.

Fluid is possibly just low, are yo leaking any?

The other thing that come to mind is either a dirty valve body, and or a bad torque convertor…..

went out earlier and didnt miss a beat strange

okmate said

went out earlier and didnt miss a beat strange

That sounds like dirt or debris blocking one of the valve bodies….. I have had an issue with the oil pump on mine once, and instead of gutting the whole thing, I opted to buy a used one that had 90K from the yard (breakers) because it wasn't leaking, and it was clean… 35 for the tranny, or 300 for the kit… Yes I am cost effective.

I should say that I have found that if you truly want to  change the gear box oil, which you should do if it is Burnt smelling or Dirty Brown instead of bright red, to completely exchange it requires removal of the transmission.  OH but wait why??

Because the Tranny fluid is about 6qts, and 3 of them or less is in the tranny while the other 3 to 3.5 are in the Torque convertor, and the only way to exchange that is to drop it,,,,,,,

or

You can flush your system. Or basically Dilute the old with new. If you want to drop your pan you can, at least to change the filter, but in all the times that I have dropped pans, the plastic filter screen isn't bad.  You are just draining the 3 quarts or so, be sure that you measure all that you take out….so you can add the same amount going back.

How I do it is this.

With a quart jar and a Mighty vac (I use a glass mason jar with a sealed lid, one of those Pasta Jars from the store works well too).  Into the cap I have a 3 foot Vinyl tube that is about 1/2 inch above the bottom, and a 2 foot tube that is only about 1/2 to 1 inch from the bottom of the lid top.  Yep a short tube and a long tube.



I suck out 3 quarts of fluid via the fill tube, Measure it.
Add the same amount of new fluid…

Drive the car about 3-4 miles, then Rinse repeat 2 more times, and after the 3 drive about check the fluid level….
You can do it a 3 time as to exchange the fluid, and I actually short the final oil by about 8 oz, and add the Seafoam ATF tuneup product….

I make sure that I don't over fill it, as too much and the oil froths and makes shifting funny, and too little fluid does the same….. It is like Goldilocks has to be Just right.

Hopes this assist you… . 9-12 Quarts of Dexron3 is a tad cheaper than taking it to a shop to have it done, and unless it is a tranny shop, they will only be adding about 3 quarts of new instead of the 6 qts.

Oh, and  I forgot that the Diff uses 90wt..less than a liter.

Thanks pal, think i will use this method, can you clarify

Few questions

whats a mighty vac?
how much is a quartz ?

do you drop the long tube into the fill hole where is this ?
 where do you fill the new fluid into ?

DYou can do it a 3 time as to exchange the fluid, and I actually short the final oil by about 8 oz, and add the Seafoam ATF tuneup product….

 3 quartz is 2.83906Liters.


A mighty-vac.





Buy vinyl tubing about 6 feet that will go inside the fill tube, you have to get it to the bottom of the pan.

You make the collection jar and place the intake tube, the one that bottoms out in the collection jar into the Tranny fill tube, Where the Dip Stick is.

The last 3 quarts that you suck out, be sure that you short it by about 10oz or and add .25L of Seafoam…. drive it about a bit, then check the oil level after you get it hot…..in park with the engine running.

You attach the other end to the mighty-vac……(great tools to bleed brakes as well that is after you wrap the bleeder ports with Teflon tape as it will suck air through the threads.

I am across the pond and things here are sold in Gallons, Half gallons, quarts, and Pints…
 

Briano1234 said

okmate said

went out earlier and didnt miss a beat strange

That sounds like dirt or debris blocking one of the valve bodies….. I have had an issue with the oil pump on mine once, and instead of gutting the whole thing, I opted to buy a used one that had 90K from the yard (breakers) because it wasn't leaking, and it was clean… 35 for the tranny, or 300 for the kit… Yes I am cost effective.

I should say that I have found that if you truly want to  change the gear box oil, which you should do if it is Burnt smelling or Dirty Brown instead of bright red, to completely exchange it requires removal of the transmission.  OH but wait why??

Because the Tranny fluid is about 6qts, and 3 of them or less is in the tranny while the other 3 to 3.5 are in the Torque convertor, and the only way to exchange that is to drop it,,,,,,,

or

You can flush your system. Or basically Dilute the old with new. If you want to drop your pan you can, at least to change the filter, but in all the times that I have dropped pans, the plastic filter screen isn't bad.  You are just draining the 3 quarts or so, be sure that you measure all that you take out….so you can add the same amount going back.

How I do it is this.

With a quart jar and a Mighty vac (I use a glass mason jar with a sealed lid, one of those Pasta Jars from the store works well too).  Into the cap I have a 3 foot Vinyl tube that is about 1/2 inch above the bottom, and a 2 foot tube that is only about 1/2 to 1 inch from the bottom of the lid top.  Yep a short tube and a long tube.



I suck out 3 quarts of fluid via the fill tube, Measure it.
Add the same amount of new fluid…

Drive the car about 3-4 miles, then Rinse repeat 2 more times, and after the 3 drive about check the fluid level….
You can do it a 3 time as to exchange the fluid, and I actually short the final oil by about 8 oz, and add the Seafoam ATF tuneup product….

I make sure that I don't over fill it, as too much and the oil froths and makes shifting funny, and too little fluid does the same….. It is like Goldilocks has to be Just right.

Hopes this assist you… . 9-12 Quarts of Dexron3 is a tad cheaper than taking it to a shop to have it done, and unless it is a tranny shop, they will only be adding about 3 quarts of new instead of the 6 qts.

Oh, and  I forgot that the Diff uses 90wt..less than a liter.

Briano jive been familiarizing myself with this method on you tube seems there's lots of DIY tools that others have made to do this so think i'm going to make my own vac system.
 over here we buy 5 litres of ATF fluid so surley pulling 3 litres out and replacing with fresh then repeat another 3 times is a waste of clean fluid, why not take out the as much as you can then replace with the same amount ?

Oh forgot to mention what size was the tubing for the dipstick ?

You are diluting the oil, and you won't be able to suck the fluid out of the Torque convertor. You just can't do it.

The TC's oil doesn't drain out it is sitting in the body of the thing and is only moved by the pump when the engine is spinning, and you have to have the oil up to temp so that it will flow and have the proper thinness so you can accurately measure the full mark.  That is why you measure the oil in the quart jar, and then return that same amount.

Diluting the oil by 9, gets if fairly refreshed and crud removed.  Diluting it by 12 almosts guarantees that it is 100 percent exchanged.

So you have to dilute it from the transmission body.  Run it about a bit so the TC gets dilutes with the new.  Drain refill, rinse repeat…

I have been doing this way for over 12 years of running Autos Dubs.

The Tubes we buy here are in inches, so I don't know the measurement of your stock, more, than a quarter and less than a half of an inch.
My tranny funnel that I use is 3/8" 

Sorry for going BRIano

How much  new fluid did you start with ?  Sorry having some difficulty comprehending LOL if you suck the old fluid out 4 times you must be returning old fluid at some point if you started with 5 litres so to speak

The torque converter is like dropping a corked bottle full of water into the ocean. Unless you take the bottle out and open it you won't change all the fluid so you'll always have fluid in there.
You should notice a change once you've changed the fluid in there. If your propping your car on axle stands or ramps make sure it is level. Use a level or make a mark  on something like a glass of water.

Can the torque converter be drained, I thought they normally had a drain plug on them. You turn the engine to a specific place then there's an access hole for the TC drain plug underneath???

No, the torque convertor can only be drained outside of the transmission.

The ATSG for the 010 Tranny is located here.
https://www.reflectionsandshadows.com/a1-tech/BIGATSG.pdf

There are no drain plugs.

1..Start with 9 to 12 Quarts of NEW DexronIII.
You are Diluting the old.  You will by driving it around a bit Xfer some of the new into the Torque convertor.

You Drain out the old, or siphon it or vacuum it the quart jar is so you can measure what you take out, you will take out 3 quarts of old first, then replace it with the same amount of new.

The second time you take out 3 quarts of old/new and replace it with 3 more quarts of new.

The Third time you are taking out 3 quarts of old/new/new and replaceing it with 3 quarts NEW FLUID minus 8 oz.
You will add 3 quarts of new+ the sea foam.

You are never re-adding old fluid  or the old/new mix that you have drained.

 You are only adding new fluid every time.

After you drained (or evacuated it a second time) you have basically diluted it by 75 percent.  Or exchanged about 75 percent of the old with new.

After the 3rd time, you have diluted it (theold) but about 99 percent….

The caveats is that you have to drive it about a bit to get the transmission to shift gears and gets the fluid moving in to the torque convertor.

Torque convertor out of the tranny with the splined drive shaft.




Torque convertor strapped and measured ready yo go back in the car.



From the ATSG how to Siphon out the Torque convertor.

Aaaah thanks that's a handy link! I've never gotten too involved with auto transmissions, the ones I've had have tended to be reliable.

I've done engine and transmission oil changes with a suction tube - on boats……because you can't get to the drain plug….. so I have the kit somewhere to do it, makes sense to do a part-change then mix it up, rinse and repeat rather than get too involved with the sump etc especially since you can't actually do the TC.

I might need to pick your brains on another thread!

paul_c said

I might need to pick your brains on another thread!

That is just another way us Dyslexics spell my name…

Braino.

Dyslexics of the world untie.  

First off I would like to apologize for sounding simple ' but in fairness, it's a bad habit of mine trying to understand something that digests… once it clicks then I'm fine.

Based on all this information especially from Briano i have made my own vacuum pump using an old shed/workshop henry + an old garden sprayer and successfully made a vacuum pump.

Really impressed worked super.

what i done is made sure i sucked out 2 liters a time then filled with new ATF of the same amount went for a spin with plenty of gear changes then done the same with another 2 liters, before finishing with 1 liter top up as my new ATF fluid was 5 liters max, I'm 100% that i will be doing this in a month or so so eventually the fluid within the TC will be rejuvenated.

thanks again guys anyone needs my setup in the Birmingham area…. UK that is are welcome to pick my gizmo up and borrow

Pictures to follow