Trans slipping / surging / clicking while in gear - 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 04-15-2019, 05:00 PM
gladesteen's Avatar
gladesteen gladesteen is offline
Junior Member
 
2004 Olds Bravada
Medium Red Metallic 4.2L I6 AWD
Join Date: Aug 2009
Location: warner robins, ga
Posts: 38
Trans slipping / surging / clicking while in gear

Today my trans started acting up. 2004 Olds Bravada w 200k miles.

Everything is fine from a stop, nothing wrong in 1st gear. Shifts into 2nd fine, and while accelerating, i feel and hear a click/clunk with the truck surging at the same time throughout 2nd gear. It happens maybe once per second and does this 3 or 4 times. Shifts fine into 3rd gear and same thing after the shift. More surging/clicking/clunking while in 3rd gear. I've also noticed that when coming to a stop, the downshifts are VERY clunky. Same thing periodically occurs when upshifting. Sometimes i get VERY hard clunks into 2nd and 3rd gear. The surge/clicking im hearing is while im accelerating IN GEAR, not shifting or transitioning into gear.

I checked the fluid, looks good. Not smelling burnt. I changed trans fluid/filter last summer. I also should mention i've had the PCM 4 LESS tune for years. No Codes, nothing pending.

Any ideas ? Hoping its something easy.....thanks, mark
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-15-2019, 06:28 PM
miketexas miketexas is offline
Member
 
2003 Chevy TrailBlazer LS
Black 4.2L I6 2WD
Join Date: Feb 2018
Location: TX
Posts: 414
Codes?
Reply With Quote Quick reply to this message
  #3  
Old 04-15-2019, 06:32 PM
gladesteen's Avatar
gladesteen gladesteen is offline
Junior Member
 
2004 Olds Bravada
Medium Red Metallic 4.2L I6 AWD
Join Date: Aug 2009
Location: warner robins, ga
Posts: 38
Mike, no codes. Thanks tho, i updated my post.
Reply With Quote Quick reply to this message
 
  #4  
Old 04-16-2019, 05:55 AM
miketexas miketexas is offline
Member
 
2003 Chevy TrailBlazer LS
Black 4.2L I6 2WD
Join Date: Feb 2018
Location: TX
Posts: 414
Quote:
Originally Posted by gladesteen View Post
Mike, no codes. Thanks tho, i updated my post.
Sorry, I'd have to drive it. Although something could be broken in the trans.
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



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

Similar Threads
Thread Thread Starter Forum Replies Last Post
06 Denali trans slipping DeNaliWhAt OEM Issues 15 12-01-2010 11:52 AM
Trans slips in passing gear ( kickdown) indyjps Transmission Mods 3 01-01-2010 11:07 PM
what does the 3 really do? smoke14 Transmission Mods 10 03-25-2009 10:11 PM
TB06 Trans won't shift manually to 2nd or 1st gear fsciorelli OEM Issues 2 12-11-2008 10:22 PM
g80 fritzi091308 4x4 Drivetrain 27 11-07-2008 03:35 PM


» Sponsors

Advertising Info

All times are GMT -4. The time now is 06:03 AM.


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