How do you run line pressure test on a 4l60e ? - 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 05-28-2011, 09:00 AM
old yukon's Avatar
Registered User
 
Last photo:
Join Date: Dec 2010
Location: In da'desert
Posts: 256
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
How do you run line pressure test on a 4l60e ?

How do ya run line pressure test on a 4l60e ?

I found this from the ATSG manual(pdf below), but I don't have all the scan tools.


What gauge to use?
is any automotive pressure gauge Ok?

Where to hook up the pressure gauge?
its says the testing port (drivers side) but i have also heard of people using the unscrewing the temp sensor and using that.

How to run the test?
is it start in park, then work through the forward gears, neutral then reverse?
at what rps do i run the test?
how long in each gear?

What reading am i looking for in the 4l60e?

Thanks again in advance
Attached Files
File Type: pdf 4l60e line pressure testing procedure.pdf (54.3 KB, 435 views)

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-28-2011, 09:18 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Most of the Info is in Pic above. It's says (15rpm) this should be 1500rpm.
I'd use the Test port shown above.
0-300psi gauge is needed>> http://www.sjdiscounttools.com/atd-5550.html also check Amazon, many have free S/H there also.

I'm not sure about the Scanner & adjusting Pr. parts above.

The Line Pr. Range low to high will be Idle to 1500rpm.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-28-2011, 10:32 AM
old yukon's Avatar
Registered User
 
Last photo:
Join Date: Dec 2010
Location: In da'desert
Posts: 256
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
Ye I though 15 rpms was a bit low.

When it says the pressures are:
Drive - 55 -189 psi
Reverse - 64 - 324 psi
Are these drive psi ranges the same for all forward gears ( 1,2,D,OD) ?
What about neutral ?
For reverse 260psi range seems extreme, is there an ideal psi reading I should be looking for?

The time for testing is listed as 2 minutes max. that means 20 seconds per gear just to read the dial gauge due to fluctuations between gears would take more than that. Whats the max time allowed?

Thanks for the response Todd
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-28-2011, 11:06 AM
old yukon's Avatar
Registered User
 
Last photo:
Join Date: Dec 2010
Location: In da'desert
Posts: 256
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
Also found this, would those psi readings be the same for the 4l60e:

Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-28-2011, 02:50 PM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Quote:
Originally Posted by old yukon
Ye I though 15 rpms was a bit low.

When it says the pressures are:
Drive - 55 -189 psi
Reverse - 64 - 324 psi
Are these drive psi ranges the same for all forward gears ( 1,2,D,OD) ?
What about neutral ?
For reverse 260psi range seems extreme, is there an ideal psi reading I should be looking for?

The time for testing is listed as 2 minutes max. that means 20 seconds per gear just to read the dial gauge due to fluctuations between gears would take more than that. Whats the max time allowed?

Thanks for the response Todd

Yes, all ranges except Reverse.
Reverse always has a higher line pressure.

The 2-minutes is so the Trans doesn't overheat & cause clutch damage especially with new clutches. The Pr. should be fairly steady when testing the max/1500rpm range, the low/Idle range may fluctuate a little more but, still be easy to quickly read. You can place the Trans in park w/engine @ idle speed to cool down if it takes longer.
The Gauge hose should be long enough to reach so you can see it sitting in the vehicle.

Those TCI pressures would also work, these are probably using larger TV & Low/Reverse boost valves than your 4L60E so your Max Pressures may be slightly lower. Here's a few more Pr. Tests links for 2004R, 700R4/4L60 Trans. With these Trans you pull the TV cable to increase Pr. for Max Pr. test, so I'm thinking with the 4L60E that's what the Scanner is used for. It would be simulating Throttle position etc.. May only be able to do the lower range Idle/low Pr. test without the Scanner but, that will still give you some Info, including the Idle speed and 1500rpm speed test.
http://www.jakesperformance.com/TV_C...etup_Info.html
Bottom of Pg.>> http://www.extremeautomatics.com/techinfo.html
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-28-2011, 07:56 PM
old yukon's Avatar
Registered User
 
Last photo:
Join Date: Dec 2010
Location: In da'desert
Posts: 256
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
Thanks Todd, we will see how it goes.
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
how do you test the TCC solenoid on the 4L60e wiring harness? old yukon Transmission - Rearend 8 03-10-2011 11:06 AM
4l60e - No reverse after rebuild - Low line pressure? reddeth Transmission - Rearend 5 06-03-2009 09:12 AM
700R4 Line pressure test 123pugsy Transmission - Rearend 6 03-30-2008 12:18 PM
Anyone ever tried the Vacuum line cylinder test? hotrodf1 Engine 21 10-14-2007 06:49 PM
4L60E Line Pressure problem (possibly) olimpalarider Transmission - Rearend 13 11-20-2006 02:55 PM


All times are GMT -6. The time now is 02:10 AM.


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.