Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
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> 2002 Chevy Pick-up 4l80E shifts hard after 10 miles of freeway driving.
User Name
Password
lost password?   |   register now

Thread: 2002 Chevy Pick-up 4l80E shifts hard after 10 miles of freeway driving. Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

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:
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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
10-10-2012 12:33 PM
Crosley Mileage on trans?

It would nice to run a pressure check on the trans during the standard shifts and when shifts turn harsh.

Depending on mileage , I would suspect a worn boost valve or the PCS may be failing hydraulically and that will not show up on a scan tool
10-10-2012 11:24 AM
SSedan64 It will show readings from various Engine & Trans sensors, solenoids, TPS, VSS etc... & can do command tests.
10-10-2012 11:17 AM
c65shoebox What specific measurements are we looking for on the scan tool?
10-10-2012 10:40 AM
SSedan64 Take it to a Trans Shop & let them do a Live Scan will be your best bet. Usually shows exactly what the problem is so you're not swapping more parts than are needed.
10-10-2012 09:48 AM
c65shoebox
2002 Chevy Pick-up 4l80E shifts hard after 10 miles of freeway driving.

I have a 2002 Chevy Pick-up, 2500 6.0 with a 4l80e that shifts hard after about 6-10 miles of freeway driving. The vehicle has a factory transmission temperature gauge and it reads around 125 degrees most of the time. It has been doing this for a 6 months and it does not seem to be heat related summer/winter driving all the same. It will shift hard (especially 1 to 2) until you shut the vehicle off for 30 seconds and then it immediately shifts fine around town until you go back on the freeway for around 15-20 miles of driving. If you shut if off then turn it right back on it will still shift hard, I have to shut the vehicle off, wait at least 30 seconds before it will shift normal. It takes longer the second time during the same day for it to start shifting hard. The first time around 6-10 miles, then the second time it takes 15-20 miles to start shifting hard of freeway use. The check engine light is not on and does not come on during this process.

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


All times are GMT -6. The time now is 10:13 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.