Best method of changing transmission fluid

[thunderii]

I need to change 03 yukon's transmission fluid. what are your recommendation.

 

[blueflamed03]

Have a tranny shop do it. They can suck out the old, take tranny pan off for visual inspection, and replace filter, then add new gasket, new fluid.

 

[yooformula]

depends on your miles imo. I wouldnt flush if you have alot of miles on there. My 03 has 160k and I dropped the pan, wiped it down, replaced filter then refilled. Very easy, the hardest part was bending the trans cable bracket over a bit to pull the pan out.

 

[blueflamed03]

sorry, I surely didn't mean flush, I meant suck out old, which includes TC, which dropping the pan, you don't get the old fluid out of the TC.

 

[thunderii]

the shop offers 2 diff ways to change oil IMO. My truck has 67k. is flush okay or should i have them drop the pan and change

 

[blueflamed03]

drop the pan over flush, IMHO.

 

[yooformula]

drop the pan over flush, imho.

ditto!! at least until you have given it time to adjust to fresh fluid assuming the prev owner didnt maintain proper changing intervals.

 

[bigpapapete]

I really don't believe in flushing the trans ever ,but thats my opinion and mine only. I think that it stirs up any deposits and may move them to another place you dont want . drop the pan change the filter. that will tell you if you have a problem , dposits in the pan.

 

[thunderii]

this is my first time changing T/F on the truck and I'm the first owner. I had bad experience changing T/F I broke one of the bolt trying to tighten too much. I'm bit wary to do it again.

 

[oreowizard98]

Have a shop do it by dropping the pan. Its alot cleaner having someone else do it.