4l65E Fluid Contamination - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-21-2012, 10:52 AM
Registered User
 
Join Date: Jan 2009
Location: utah
Posts: 93
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
4l65E Fluid Contamination

I recently rebuilt a 4l65E, it had a flare going 2,3 and forth. You could watch the tach in the vehicle go up to 2000 rpm flare up to 2200-2300 then drop into gear at about 1500-1700 rpm under moderate throttle. When I dropped the fluid from the pan, it came out a pink milky color, meaning it was contaminated with coolant. Only has 3 miles on it, I have not drove it since I cleaned everything out and changed the radiator. I went through it yesterday and cleaned everything, blew through the open cooler lines with brake clean, same with the external trans cooler I let it sit with brake clean in it for a few hours and then blew though it with light a air pressure. Obvisouly fluid contaminated you would probably not get a good shift, I repacked the 2-4 servo and installed a sonnex valve in the 3rd accumulater check ball, and installed the orange box shift correction kit to fix the flares if not caused by the fluid or 3rd accumulator check ball leaking. I have seen those where they don't seal off and burn up the band. I did the leak check but you never know.

Is it recommended that I go back through the transmission and change the frictions, band and torque converter due to the contamination? I have heard that coolant disbondes or releases the glue that holds the frictions to the steel plate that makes up the friction, same with the band, and same with the carbon friction in the torque converter.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-22-2012, 06:41 AM
Registered User
 
Join Date: Jan 2009
Location: utah
Posts: 93
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Thanks for the help~!
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
4l65e transmisson frink55 Hotrodders' Lounge 1 05-02-2011 10:27 PM
contamination in my clear, what happend??? Mustangous Body - Exterior 3 01-23-2007 05:09 AM
Oh no! Contamination RyanB Body - Exterior 10 02-22-2006 11:31 AM
Gas contamination qctech Garage - Tools 1 03-06-2005 09:12 AM
Race engine, coolant and oil cross contamination 110 Octane Engine 7 11-30-2004 12:31 AM


All times are GMT -6. The time now is 12:14 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.