Damaged catalytic converter after fuel injector service!

[Snowcamo]

I think there may be a misunderstanding of what a trans flush is. All the machines I've seen just drain old fluid out a cooler line while refilling into the cooler side. Nothing the trans doesn't see every mile. Just new fluid. Not saying I'm a proponent of this method, just don't see how it could damage anythig. No more fluid "flushing" than normal.

If your clutches are still in really good shape not worn down then you'd probably be ok. If they are worn and dependent on the grit flowing through the system to function your SOL after you flush.
Unless you tear the trans apart or drop the pan use your own judgement its not the best idea for said reason.

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[diyer2]

31 minutes ago, tbarn said:

I think there may be a misunderstanding of what a trans flush is. All the machines I've seen just drain old fluid out a cooler line while refilling into the cooler side. Nothing the trans doesn't see every mile. Just new fluid. Not saying I'm a proponent of this method, just don't see how it could damage anythig. No more fluid "flushing" than normal.

Isn't this a fluid exchange?

Replaces the old fluid with new.

A flush uses a product to flush, clean and then the fluid is replaced.

[Snowcamo]

Typically they both utilize the same method i.e. fluid exchange. Never heard of anyone actually using a flushing agent unless it was to flush the cooler after a rebuild or replacement transmission installed.

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[tbarn]

Definetly would not want any part of a flushing agent. Besides, I'm a drop the pan and change the filter guy. I wouldn't take a shower and leave my dirty underware on.

[silveradosid]

tbarn is this the method that gm uses. i had my tranny serviced by local gm dealer, and since the service my transmission temp will not go above 160 degrees. this was 5 months ago. what type of fluid would gm have put in the tranny, it is a 6 speed. i plan on doing it the next time myself and drop the pan, should i use gm fluid or something else

[CKNSLS]

There is nothing wrong with a "trans-flush" WHICH REALLY ISN'T A "FLUSH" AT ALL.

 

The Internet myth that refuses to die........

 

Let's talk about the "orange can of death" -Fram filters-that's another one.

 

 

[Snowcamo]

Man...

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[diyer2]

Let's talk about the "orange can of death" -Fram filters-that's another one.

Really?

[mookdoc6]

13 hours ago, CKNSLS said:

There is nothing wrong with a "trans-flush" WHICH REALLY ISN'T A "FLUSH" AT ALL.

 

The Internet myth that refuses to die........

 

Let's talk about the "orange can of death" -Fram filters-that's another one.

 

 

Here is more of that internet folk lore.

1. 90% of GM AFM will have problems at 100k.

2.  GM electronics always go bad.

3. Catch CAN IS ABSOLUTELY NEEDED!

4.  My Rear diff Cover does everything FAR SUPERIOR than OEM!

5. Tranny flushes ruin tranny's

6.  Fram Filter will last 3-4weeks!

 

and on,on,on................

 

[CKNSLS]

45 minutes ago, mookdoc6 said:

Here is more of that internet folk lore.

1. 90% of GM AFM will have problems at 100k.

2.  GM electronics always go bad.

3. Catch CAN IS ABSOLUTELY NEEDED!

4.  My Rear diff Cover does everything FAR SUPERIOR than OEM!

5. Tranny flushes ruin tranny's

6.  Fram Filter will last 3-4weeks!

 

and on,on,on................

 

Nice post dude!

[tbarn]

 

tbarn is this the method that gm uses. i had my tranny serviced by local gm dealer, and since the service my transmission temp will not go above 160 degrees. this was 5 months ago. what type of fluid would gm have put in the tranny, it is a 6 speed. i plan on doing it the next time myself and drop the pan, should i use gm fluid or something else

It's impossible to say what a dealer would put in your trans.  Most would use an GM approved fluid from a bulk tank.  But with all of the trans "services" offered you would have to ask that dealer. GM has never recommend trans flushes except when catastrophic failure happens ( see attached TSB ). Each dealer does their own thing though. Just because a dealer does something doesn't mean it's GM's way.

 

flush.pdf

[CKNSLS]

On 1/15/2020 at 10:16 AM, tbarn said:

It's impossible to say what a dealer would put in your trans.  Most would use an GM approved fluid from a bulk tank.  But with all of the trans "services" offered you would have to ask that dealer. GM has never recommend trans flushes except when catastrophic failure happens ( see attached TSB ). Each dealer does their own thing though. Just because a dealer does something doesn't mean it's GM's way.

 

flush.pdf 86.8 kB · 3 downloads

 

True-but they have to use fluids that meet specs-whether there is a GM label on it or not.  95% of the time the garage has a machine -which does just that-exchanges the fluid.  Yet-the term "flush" lives on in the world of the Internet. And GM doesn't approve "flushes" as your PDF proves.  If they are not using GM (that meet the spec) approved fluids-then that's another thread to start about "dishonest" dealers.  I am currently trying to find specs on "Rinehart" universal transmission fluid that the local "quick lube" wants to use in my wife's 2017 Hyundai 6 speed. No info online. I contacted the company-no replies there either. So-If I don't know anything about the fluid-my business is going elsewhere.