Trans Flush vs. Fluid Change?

[manderson7015]

Hello everyone! Forgive me if this already posted, but i'm new here. Should i flush the trans or just drop trans fluid and refill? Would like to hear everyones comments. Own '10 Tahoe 5.3L 4x4.

 

[ezdaar]

I always do a flush via the trans cooler lines.

 

[NVNJ]

Not to hijack, but at what interval should this be done? I also have a 2010 with 68k miles.

 

[ccapehartusarmyINF.(ret)]

68k miles i wouldnt even bother

 

[JML07denali]

100k miles


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[byrds6]

Thought I read somewhere it said NOT to do a flush?

 

[JML07denali]

If you pump it out via the trans cooler lines you won't disturb any debris in your tranny. It's also much faster and not nearly as messy.


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[Wake]

I'd just do the pan or the cooler line as others have suggested. I lost a tranny once to a flush about 20 years ago when I didn't know enough about them. After the flush the trans started slipping a few thousand miles later. The flush wasn't because there was a trans problem, just that I had higher mileage and wanted to change out all the fluid.

 

[LTV Chaos]

So is this general consensus to simply do a drain? I'm coming up on my 100K mile maintenance and want to make sure I get it right.

Pete

 

[HoS]

Took mine to a local trusted guy. Dropped the pan, replaced gasket and filter.