2005 Trailblazer Transmission fluid change question - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



Welcome Enthusiast! If you already own a Chevy TrailBlazer or GMC Envoy or perhaps thinking of purchasing such a vehicle, then you have come to the best TrailBlazer and Envoy site on the net! Rainier, Bravada, Ascender, and 9-7x owners welcome too!

You are currently viewing our site as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to search and post topics, communicate privately with other members, respond to polls, upload content, and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.
Join Today!
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 > Transmission Mods

Transmission Mods Performance Transmission Modifications

TrailVoy.com is the premier GMC Envoy Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
  #1  
Old 04-20-2017, 05:04 PM
BCTB05 BCTB05 is offline
Junior Member
 
2005 Chevy TrailBlazer LS
Indigo Blue Metallic 4.2L I6 4X4
Join Date: Nov 2016
Location: Ohio
Posts: 3
2005 Trailblazer Transmission fluid change question

Hi All, I have a 2005 4WD Trailblazer with the I-6 4200 engine and I want to change the transmission fluid in it. It's not super dirty and the trans shifts fine, but with 140,000 miles on it, it's time to change the fluids out since I don't know the service history.

Main question is if you can drop the transmission pan without removing the bracket on the side of the transmission case for the shift cable? I can get to the rear bolt on the bracket and it moves a little bit until it hits the driveshaft for the front axle. It looks like I can get the pan bolts out without any problems, but will that bracket cause problems removing and replacing the pan. The manual I have says to remove the bracket, but it's easier said than done, so has anyone done this without removing the bracket?

Also, when it comes to the transmission fluid, the owner's manual calls for Dextron III while the parts store and the filter manufactures call for Dextron VI. I know you can mix the 2 types, but what are your opinions on the fluid?

I wasn't going to do a flush, just drop the pan and change the filter this time around.

Thanks in advance!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-20-2017, 09:23 PM
gatorglenn gatorglenn is online now
Junior Member
 
2003 GMC Envoy SLT XL
Pewter Metallic 4.2L I6 4X4
Join Date: Feb 2015
Location: ft wayne In
Posts: 30
I have a 03 so don't know if there is any change in year. But I can get the pan off without moving the linkage bracket. I think why the book said s to is to make it easier to put back with the gasket. For fluids dextron what ever is over lll. When they make a new one I always move up. As long as it's covered at least the lll


Sent from my iPhone using Tapatalk
Reply With Quote Quick reply to this message
  #3  
Old 04-22-2017, 11:26 PM
BCTB05 BCTB05 is offline
Junior Member
 
2005 Chevy TrailBlazer LS
Indigo Blue Metallic 4.2L I6 4X4
Join Date: Nov 2016
Location: Ohio
Posts: 3
Thanks gatorglenn

Thanks for the reply! I figured that the pan would come off without taking the linkage bracket off. I was more concerned if it would be a problem to get the pan back on without causing issues with the filter if you had to jockey the pan around to get it back on with the bracket in place. But it sounds like you've had no problems changing yours out. Thanks again!
Reply With Quote Quick reply to this message
 
  #4  
Old 04-23-2017, 12:00 AM
AWD V8's Avatar
AWD V8 AWD V8 is online now
Senior Member
 
2003 GMC Envoy SLT
Indigo Blue Metallic 5.3L V8 AWD
Join Date: Dec 2014
Location: Surrey BC
Posts: 544
Just be careful about "jockeying" the pan around. If you have to force it, it is possible to break one of the plastic shift solenoids. Don't ask how I know that.
__________________
I was planning on procrastinating today but I think I'll do that tomorrow.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum forums, you must first register.

Please enter your desired user name, your email address and other required details in the form below.
(Only letters, numbers, dashes and underscores are permitted for user names)
The user name that you choose is permanent and can never be changed.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live (ex: Philadephia, PA)
Vehicle Year
Choose your year
Or enter your choice here:
Vehicle Color
Choose your factory color (Custom, Not Listed & Two-Tones; Use Text Field Below)
Or enter your choice here:
Vehicle Make
Choose your make
Or enter your choice here:
Vehicle Model
Choose your model
Or enter your choice here:
Vehicle Engine
Choose your engine
Vehicle Drivetrain
Choose your vehicle drivetrain
Security Question
Fill in the blanks: Tra___oy
Insurance
Please select your insurance company (Optional)

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


» Sponsors

Advertising Info

All times are GMT -4. The time now is 02:34 PM.


Chevy TrailBlazer and GMC Envoy Enthusiasts - Copyright 2004 - 2009 All Rights Reserved.
All trademarks referenced herein are property of their respective owners.
RSS Feed