Hey guys, my check engine light just came on because of the TCC failing and before ripping the tranny off, I want to see if a simple fluid change will fix the problem (the car still drives fine).

I know that using a machine to flush the tranny is bad but what about this method?

[youtube]MsdPAadc9fY[/youtube]

This method seems very efficient and it gets rid of all of the old fluids without damaging anything.

 

Flushing with a machine at a shop or 15 min oil change place is bad. Our transmissions only need a drain and refill. The method the guy does in the video is good, because pressure is being applied by the car and not some machine at higher pressures and also does a 99% fluid exchange.

 

Sweet, so doing what this person did is OK? I've just been reading that flushes are bad so I've been a little hesitant.

Also, my tranny has quite a bit of miles (180K) and the fluids have been replaced once. Would a flush be bad?

 

Dope DIY!

 

Wait, what color is the fluid now? If it hasn't been changed in that long, I would do a drain and refill 3 times every 100 miles to let the transmission notice a change and not gradually change all the fluid at once. Most people would tell you that if you haven't changed the fluid this long to not change it at all and just wait for the tranny to die and replace the tranny. If it was me, I would do what I mentioned, change it every 100 miles to gradually introduce new fluid to the tranny.

Post pic of the fluid on a white napkin from the dipstick. If it is black, do the drain refill every 100 miles.

 

Once it's slightly brown, it's time to change it before it's black.

 

[QUOTE=StockDC2;47727832]Sweet, so doing what this person did is OK? I've just been reading that flushes are bad so I've been a little hesitant.[QUOTE]

When most people refer to flushing a transmission, they mean by a machine done at a oil change place or shop done by a machine that uses high pressure to flush out the fluid, not like the video which uses the cars own tranny to flush out the fluid. The machine @ a shop uses higher pressure than what the cars tranny does to flush out the fluid.

 

Check out post #39.

https://honda-tech.com/forums/showth...2940331&page=2



This is exactly what I do, a couple minor differences but basicly the same. GET AFTER IT.. Use whatever fluid you want to, but get the dirty old fluid out of it NOW....ALL OF IT.

The DIY video is very good.

The transmission doesn't need to have clean fluid introduced a little at a time, but do what you want to do.

 

Post 39?

 

Why is it that if it's gone that long you shouldn't change it? Just out of curiosity.

 

Thanks for all of the input guys. The reason why I am doing the fluid change now is because the check engine light came on with code 0740 (TCC failure). The tranny has been slipping for quite some time now between the 1-2 and 2-3 shifts (common for the Accords between 98-02). I figured that swapping the fluid would be my last effort before buying a new car.

For those that are interested, the back story is as follows.

A few days ago, I was driving home and the tranny was slipping quite a bit. As soon as it happened, the check engine light came on and I knew that the tranny was dead. Well, I checked the tranny dipstick and it showed some oil on there (albeit brown/black) so I took it around the block. Surprisingly, the car drove fine.

I spoke to my dad and he said that he did the fluid change within 30K miles ago (I didn't know that he kept up with maintenance). When I swapped the fluids, the old fluid looked purple? Anyways, after doing the change, I drove the car around and there is still some slight slipping. The RPMs on the highway also seem to be a bit higher. What's really weird is when driving above 60 MPH, the RPMs are right around 2500-2600. As soon as I give a little bit more gas, the RPM needle jumps up 250 RPMs. Is this normal?

Anywho, I will probably make a video and see if I can get feedback before I head to the dealership this weekend.

Thanks for all the help!

 

When the fluid becomes old and brown it is most likely suspending the friction material in the fluid. Changing the fluid will remove this, it can cause slipping due to the lack of the material. If there is considerable wear the clutch packs may have more clearance than before. New atf will also have friction modifiers that may affect shift performance as well.

If the fluid is old, brown, burnt, whatever, it needs to be changed. If the transmission outright fails after the fluid change, it was on its way out anyway.

 

agree with Mad Mike.

Call Synchrotech, They rebuild Honda Transmissions all the time, can get you any part, and sell you a transmission should you need it. They're really helpful.

http://shop.synchrotech-transmission...issions_c8.htm