Transfer Case Fluid Change (Automatic Transfer Case Only) - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > 4x4 Drivetrain

4x4 Drivetrain 4x4 Repairs & Problems

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  #1  
Old 07-10-2006, 11:35 AM
Trefilov22 Trefilov22 is offline
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Thumbs down Transfer Case Fluid Change (Automatic Transfer Case Only)

According to mygmlink.com, this is the only service needed (besides oil and the basic stuff) at 50k miles?? Is that correct? If so, what exactly does that mean?

Transfer Case Fluid Change (Automatic Transfer Case Only)


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  #2  
Old 07-10-2006, 01:29 PM
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MTPockets MTPockets is offline
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Quote:
Originally Posted by Trefilov22
Transfer Case Fluid Change (Automatic Transfer Case Only)
This means drain and refill your transfer case. There are seperate drain and fill plugs on it. Use only GM Auto-trak II oil. IIRC, it uses just over 1.5qts.

Joel
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Old 07-10-2006, 05:21 PM
ScarabEpic22 ScarabEpic22 is offline
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Quote:
Originally Posted by MTPockets
This means drain and refill your transfer case. There are seperate drain and fill plugs on it. Use only GM Auto-trak II oil. IIRC, it uses just over 1.5qts.

Joel
Yep, I did mine at 49K when I changed every other fluid (except power steering which I need to do eventually).

Only use GM AutoTrak II fluid otherwise your TC will never work again, seriously. It is the only fluid that works in them. In mine I put about 1.8L in it, buy 2L of it from the dealership for like $10-12 per L.

Ohh, and make sure you have a 3/8" hex drive bit before attempting to remove the fill and drain plugs (remove fill first).
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Old 01-10-2010, 05:37 PM
Ryan Ryan is offline
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anyone have pics of the locations of the plugs?
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  #5  
Old 01-10-2010, 06:01 PM
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gmac310 gmac310 is offline
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Cheer ya go; #13 is the fill, #15 is the drain:

Borrowed from one of Roadies posts, any distribution or replication of said material is a sign of admiration, all rights reserved.
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Old 01-10-2010, 06:13 PM
Ryan Ryan is offline
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where abouts does this sit in the truck? I thought I changed this yesterday but I accidentally changed the front diff fluid. opps. so I found that out and put the right fluid in the front diff but I couldn't find this? I think I was looking to far forward on the truck.
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Old 01-10-2010, 07:13 PM
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gmac310 gmac310 is offline
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Should be right under your drivers seat.
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  #8  
Old 01-11-2010, 03:16 PM
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Trailblazer88 Trailblazer88 is offline
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Just did mine this past weekend... What a pain in the a$$ to refill!!! Next will be the front and rear diff fluid... Are these easier to refill?
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  #9  
Old 01-11-2010, 04:24 PM
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Except for the part about the locking hub, this is an overall diagram of a 4WD system. IMHO, nobody should own a vehicle without reading some elementary "How It Works" kind of sites or books.

http://auto.howstuffworks.com/

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