thunderii
TYF Newbie
I need to change 03 yukon's transmission fluid. what are your recommendation.
Best method of changing transmission fluid
- Thread starter thunderii
- Start date
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blueflamed03
Elite Member
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
Full Access Member
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
Elite Member
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.
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thunderii
TYF Newbie
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
Elite Member
drop the pan over flush, IMHO.
yooformula
Full Access Member
ditto!! at least until you have given it time to adjust to fresh fluid assuming the prev owner didnt maintain proper changing intervals.
bigpapapete
TYF Newbie
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.
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thunderii
TYF Newbie
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
Member
Have a shop do it by dropping the pan. Its alot cleaner having someone else do it.
odie301
Full Access Member
I do transmission flushes all the time. Pretty simple, and usually never any problems.(unless it is a damn dodge, cause they are touchy about line pressure) Most problems come from trying to flush a transmission that has over 150k miles and has never had any prior maintanence.
Our flush does it by using your transmissions own pump (rather than some that use a seperate pump and force fluid through the system which is not a good idea). So we tap into a line, old fluid comes out and pushes on a piston, that in turn pushes new fluid in...when its done we hook the lines back together and it is good to go. It puts in as much fluid as it takes out. I did this to my tahoe, and following the flush i dropped the pan and changed the filter. Doing BOTH insures the transmission cooler and torque converter have fresh fluid, plus you have a clean filter and can clean any deposits out of the pan before the fresh fluid loosens them up.
Have both a flush and the filter changed at a shop...any problems after having it serviced should be covered by the shop that does the service. Our flush runs $100 and we use full synthetic fluid in everyting..and a filter change w/ the flush would be like another 50 or so to cover the filter and fluid cost
Our flush does it by using your transmissions own pump (rather than some that use a seperate pump and force fluid through the system which is not a good idea). So we tap into a line, old fluid comes out and pushes on a piston, that in turn pushes new fluid in...when its done we hook the lines back together and it is good to go. It puts in as much fluid as it takes out. I did this to my tahoe, and following the flush i dropped the pan and changed the filter. Doing BOTH insures the transmission cooler and torque converter have fresh fluid, plus you have a clean filter and can clean any deposits out of the pan before the fresh fluid loosens them up.
Have both a flush and the filter changed at a shop...any problems after having it serviced should be covered by the shop that does the service. Our flush runs $100 and we use full synthetic fluid in everyting..and a filter change w/ the flush would be like another 50 or so to cover the filter and fluid cost
odie- sure wish we had a good shop around here that charged those prices. Even if I bought the parts at a store myself I would spend at least $95 (16 qts synthetic x $5= $80 plus filter and gasket = $15). That only leaves $55 for labor, shop supplies, etc. How do yall do it?
