"Quick" 4x4 Fluid changes

[customboss]

57 minutes ago, Homewrecker007 said:

The dealership has me on a tight leash in order to keep my lifetime powertrain warranty I have to go back to them for every maintenance 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For the first time ever I purchased an extended warranty and my dealer approved us using Amsoil products in the truck and I do. 

 

I had them install Amsoil top of the line diff, and AT fluids.  Watched them do it but they could not suction out the front diff so I took it home and did it myself. 

 

The truck is smoother with Amsoil and gets better MPG with it installed.  

 

 

[Homewrecker007]

When I go in for a service I'll look into getting Amsoil 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Edited January 14, 2023 by Homewrecker007

[Black02Silverado]

I’m lucky and the dealer I deal with is dependable and I had them put AMSOIL ATF in my 10sp and I did the differential’s and transfer case. 

[Minnvmax]

My dealer wants $630 for trans fluid change in my 2019 10-speed. I am shocked. I will be shopping around. 

[jagabom (Esquire)]

On 1/14/2023 at 7:36 AM, KARNUT said:

I did my avalanche myself with Amsoil. I ran a suction device down the transmission dipstick twice in a week. The rear end had a drain I could go under without jacking up. It was too easy to farm out. The Acura, the Geneses and CRV are done at the dealerships. I spread out the extras like antifreeze and brake fluid so not done all at once. I’ve been using those dealerships for over 20 years. Both have windows so you can watch and I do. I make it known I’m watching. Early on I’d check their work. The dealer prices are competitive with even the quick lube. I make appointments so it’s fairly quick. I just did the Acura. Inspection, oil change and state inspection took one hour. Enough time to look at all the new overpriced inventory. 

So  KARNUT, you basically suctioned out as much of the transmission fluid you could through the dipstick pipe and filled the transmission back up.  Did this again after driving around to mix it all up feel you got most of it out.  I guess you could do this three times if you wanted.  Just wondering as I might try this myself.

Jim

[KARNUT]

7 hours ago, jagabom (Esquire) said:

So  KARNUT, you basically suctioned out as much of the transmission fluid you could through the dipstick pipe and filled the transmission back up.  Did this again after driving around to mix it all up feel you got most of it out.  I guess you could do this three times if you wanted.  Just wondering as I might try this myself.

Jim

That’s how I did it. I used to pull the transmission line put it in neutral and pump it out on new vehicles. Some vehicles don’t have dip sticks now. My avalanche had 168K miles on it when I bought it 3 years ago. Had detailed service records showing no transmission fluid service. If the fluid was dirty or smelly I would have dropped the pan. I’m actually surprised it’s still performing I expected it to need rebuilding before now. It’s not a long distance driver so I don’t worry with it. 

[jagabom (Esquire)]

My last 14 GMC 4.3 I pulled the transmission line at the rad and did the same as you.  One thing on that truck was the trans fluid went from the bottom of the rad to the top then out.  Found that strange but maybe so the fluid doesn't get cold.  Anyways on my 2017 4.3 I am not sure which way the fluid pumps.  I guess I will find out. 

Thanks

Jim

[Black02Silverado]

On 1/16/2023 at 2:45 PM, Minnvmax said:

My dealer wants $630 for trans fluid change in my 2019 10-speed. I am shocked. I will be shopping around. 

My dealer charged me $130 to exchange out the fluid in my 10sp and I provided the fluid.  So that is an option.

[Z45]

600 is a rip off price.  I took my GMC to this Chevy HD truck dealer because they had a dedicated trans tech whereas the GMC Dealer (same company-different location) had ech with very limited trans experience. 

PS - The Service rep "Whitney" told me the tech said to tell me he uses AMSOIL as well.  Thumbs up.

Edited January 20, 2023 by elcamino

[Grumpy Bear]

22 hours ago, jagabom (Esquire) said:

My last 14 GMC 4.3 I pulled the transmission line at the rad and did the same as you.  One thing on that truck was the trans fluid went from the bottom of the rad to the top then out.  Found that strange but maybe so the fluid doesn't get cold.  Anyways on my 2017 4.3 I am not sure which way the fluid pumps.  I guess I will find out. 

Thanks

Jim

 

Going it the bottom has the hottest transmission fluid exchanging with the coldest coolant. Counter Current it's called. More efficient that Co-current. It also prevents air entrapment. FYI.