2000 GMC shifts rough - 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
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 07-20-2005, 03:48 PM
85CHEVY's Avatar
Join Date: Jul 2003
Age: 33
Posts: 126
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
2000 GMC shifts rough

I own a 2000 GMC Sierra 5.3 with an Automatic. The truck runs fine and has plenty of power but seems to shift kind of late and rough out of first gear. If I give it alot of gas off the line then let up after it shifts into second gear, it will take a while to up**** into third. It also started out in second gear once when I was at a stop light, but then quickly downshifted back into first with a little more gas applied.

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 08-16-2005, 11:52 AM
aminga's Avatar
Registered User

Last journal entry: Cleaning and Powder coat
Last photo:
Join Date: Feb 2005
Location: Alabama
Age: 51
Posts: 94
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I'll bet it only does it with the transmission hot too, like after a 100 mile drive or so.

The 97 - 2001 TH 700 (The 4L60E in your truck is based on the 700) auto's had a little defect in the valve body The valve body is aluminum. Over time the TCC valve operation wears the valve body and causes an internal leak. Now the 4L60E being computer controled senses the leak and raises line pressure to compensate (That's the hard 1-2 shift). If the problem occurs on 2 or more consecutive driving cycles it will activate the MIL and set a code.

There's a revised valve body to correct the problem (don't have the part number). You could also have a steel sleve pressed into the existing valve body. Unfortunatly if it's gone so far as to start the hard shifting the tranny's probably toast and will need to be rebuilt.

How do I know this, the 99 silverado sitting in the driveway.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


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
Which muffler 2000 GMC sierra 5.3 85CHEVY Engine 4 12-09-2004 08:46 PM
Help Identifying 2000 GMC Wire Connector Seon Electrical 8 10-24-2004 07:41 AM
Fuel gauge on my 2000 GMC Maverick General Rodding Tech 1 03-05-2004 10:44 PM
Headers on 2000 GMC Maverick Engine 3 09-21-2003 08:10 PM
97 gmc p.u. shifts? dinger Transmission - Rearend 4 04-23-2002 10:13 PM

All times are GMT -6. The time now is 01:56 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.