Tranny Fluid Change
Thread Starter
Launching!
Joined: Oct 2009
Posts: 291
Likes: 1
From: Toronto, Canada
Tranny Fluid Change I got an outragous quote to do a tranny flush for my local gm dealer of $269 and $189 from our local Mr Lube (+ tax). Damn i can't believe it is that much, so I was contemplating doing it myself ( not really looking forward to it cause it's damn messy). Is a flush really necessary or will the fluid change and filter change be sufficient. I've got about 25,000 k since the last change and the fluid is looking a dark.
Why is the flush so expensive other than the obvious reason for it being a dealer!!!
Is Dexron 6 the fluid of choice for everyone??
Thanks
Why is the flush so expensive other than the obvious reason for it being a dealer!!!
Is Dexron 6 the fluid of choice for everyone??
Thanks
Teching In
Joined: Mar 2010
Posts: 46
Likes: 0
From: Pensacola, FL
DO NOT DO A TRANNY FLUSH ON A 4T65HD!!!! Just keep changing the fluid and filter as you normally do and that will suffice. Your tranny will be lucky to survive a flush since it over stresses the weak parts.
Yeah just change the fluid and filter. One place I went to said they only change the fluid because the new fluid cleans out the filter. I took that as a lot of BS so I went and got it done the right way: new fluid and filter. Cost me like $100
I went to get a price to have the shift kit put in at a big name trans place,they wanted the car for the whole day and about $600 to do.I told them it looks like a wknd project,and walk out there door.Just finding time after a 12hr day 5 days a wk,is the hard part...
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I did mine at 47,000. 
I did my own fluid change. Dealer wanted $120, cost me $72 for fluid and filter and a couple hours time cause I am old and feeble. Not hard to do, just loosen bolts on pan slowly, more on one side (lower side if jacked up) and be ready when fluid starts to run out.
Thread Starter
Launching!
Joined: Oct 2009
Posts: 291
Likes: 1
From: Toronto, Canada
I went to get a price to have the shift kit put in at a big name trans place,they wanted the car for the whole day and about $600 to do.I told them it looks like a wknd project,and walk out there door.Just finding time after a 12hr day 5 days a wk,is the hard part...
$600 , man. I keep hearing how easy it is.
I bought a truck that supposedly had just had a tranny flush. THe fluid looked relatively clean but it developed a whine shortly after i got it home. So i changed out the fluid (nice thing on the truck was the torque converter had a drain plug) Got 95% of the fluid out, and changed the filter and the whine went away and that was 5000 miles ago.
And the bottom of the pan had a ton of sediment. I think tranny flushes are a joke. Most of the time they dont even change the filter out as well. How is that supposed to help your tranny?
And the bottom of the pan had a ton of sediment. I think tranny flushes are a joke. Most of the time they dont even change the filter out as well. How is that supposed to help your tranny?
if you are really worried about the mess just buy a cheap tarp and put it up under your drain pan to catch any over spill.. No matter how hard i try whenever i change any fluids some of it ends up on my garage floor.
The tranny's internal pump is what generates the pressure, so there's no abnormal "stress on the weak parts."
I will say this, a flush only makes sense if they're also dropping the pan and changing the filter. Reputable shops will do that, and if a shop tries to tell you that they recommend a flush without changing the filter,then you need to find another shop.
As long as my wife is out of earshot, all is good. 
Launching!
Joined: Feb 2005
Posts: 230
Likes: 0
From: Germantown, Maryland
to make life easier on you all ZZP has made this....
https://www.zzperformance.com/grand_...=547&catid=105
It's a little expensive, and honestly the mess may be worth more than this, but I actually got one from them for $50 on Black Friday last year. They had a list of stuff, first come first serve, I saw it and yanked it quick. It's totally worth $50 imo.
https://www.zzperformance.com/grand_...=547&catid=105
It's a little expensive, and honestly the mess may be worth more than this, but I actually got one from them for $50 on Black Friday last year. They had a list of stuff, first come first serve, I saw it and yanked it quick. It's totally worth $50 imo.