2006 GMC Sierra ABS Locking problem - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-22-2014, 02:20 AM   #1
Junior Member
Thread Starter
 
Join Date: Apr 2014
Posts: 3
Thanked 0 Times in 0 Posts
Zolo is on a distinguished road
Exclamation 2006 GMC Sierra ABS Locking problem

Hi:
I'm new to the forum.
My sierra had the power booster problem about a year ago , auto engaging the brakes as I drive. After changing the booster all was well.

Sunday night I was on I-10 and hit the brakes suddenly and after that the brakes became erratic. Pulled the power booster a discover the plunger in the booster popped loose. Got a new booster and I discovered the front disk were working , the rear drum brake were not. Funny thing the new booster popped out the center pin again.
I replace the power booster and master cylinder , Bench bled the Master cylinder , installed all and bled the brakes ( RR , LR ,RF , LF. )
All brake work fine. But the ABS has a slight Problem.
At 40 MPH , apply brakes to engage the ABS , the brakes actually lock , if you attempt to accelerate your not going anywhere. depress & release the brake pedal , and off you go. I pulled the ABS Fuse and the brakes function normally. Put back in the ABS fuse and the same results.
No ABS or Brake warning lights (except when fuse is out).

I have read in some forums that the ABS pistons have to be reset via a scan tool, but after speaking with a few local mechanics , they said they never resent the ABS . Some were not even aware.
Any Suggestions would be greatly appreciated.
Zolo is offline   Reply With Quote
Old 04-22-2014, 09:22 AM   #2
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

abs tests itself at every start. abs is difficult to bleed without a scanner though, did you turn the key on while bleeding?
jwfirebird is offline   Reply With Quote
Old 04-22-2014, 12:27 PM   #3
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

If you introduce air into the system ABS has to be activated by a Tech II scanner during bleeding to get the air out of the system.
2kg4u is offline   Reply With Quote
Old 04-22-2014, 12:38 PM   #4
Junior Member
Thread Starter
 
Join Date: Apr 2014
Posts: 3
Thanked 0 Times in 0 Posts
Zolo is on a distinguished road
Default

jwfirebird , No I did not have the Key on during Bleeding.
2kg4u Thats what I have read on another forum about a year ago .

Thank You
Zolo is offline   Reply With Quote
Old 04-22-2014, 12:54 PM   #5
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

i did it on mine a few times without a scanner. i just left the key on.then went out and activated the abs a couple times, then bled it again with the key on. then it was mostly fine. on drums you have to make sure the adjusters are free and tighten them up to get good petal after that too
jwfirebird is offline   Reply With Quote
The Following User Says Thank You to jwfirebird For This Useful Post:
Zolo (04-22-2014)
Old 04-22-2014, 01:44 PM   #6
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Quote:
Originally Posted by jwfirebird View Post
i did it on mine a few times without a scanner. i just left the key on.then went out and activated the abs a couple times, then bled it again with the key on. then it was mostly fine. on drums you have to make sure the adjusters are free and tighten them up to get good petal after that too

By "activate the ABS a couple times" JW means slam on the brakes on a slippery surface (wet, or gravel for example) to kick in the ABS. Then bleed the brakes. You may have to do that a couple of times, and even then you aren't 100% certain all the air is out.

Many have had success with this method.
2kg4u is offline   Reply With Quote
The Following 2 Users Say Thank You to 2kg4u For This Useful Post:
Soft Ride (04-22-2014), Zolo (04-22-2014)
Old 04-22-2014, 01:47 PM   #7
Senior Administrator


Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,641
Thanked 995 Times in 772 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Yup, it takes a couple of hard ABS stops with bleeding to work the ABS motor and valves.
Mike is offline   Reply With Quote
The Following User Says Thank You to Mike For This Useful Post:
Zolo (04-22-2014)
Old 04-22-2014, 10:38 PM   #8
Junior Member
Thread Starter
 
Join Date: Apr 2014
Posts: 3
Thanked 0 Times in 0 Posts
Zolo is on a distinguished road
Default

It took a couple of times to get the ABS to respond in a normal manner , After the bleeding advise & the ABS activation method via jwfirebird , all seems OK.
I will do a test tomorrow again to assure all is well .
If I still experience the problem , A friend of mine works at a shop with the Scanner and he will scan the ABS.

THANK EVERYONE FOR ALL YOUR QUICK REPLIES AND HELP!
You Guys are A+
Zolo is offline   Reply With Quote
Old 04-23-2014, 07:55 AM   #9
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

sounds good
jwfirebird is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1986 c10 locking differential not locking ChevelleGalaxie500 Chevrolet 12 09-15-2013 02:48 PM
Sierra left side brakes locking up Ol"_Rusty GMC/Chevrolet Truck/SUV 20 02-19-2013 07:15 PM
97 GMC Sierra starting problem bluepen2 GMC/Chevrolet Truck/SUV 4 06-27-2011 11:37 PM
2006 Gmc Sierra fuel vent valve sunpackingmec GMC/Chevrolet Truck/SUV 4 11-16-2010 12:15 PM
2000 GMC sierra problem. nightriderr GMC/Chevrolet Truck/SUV 5 10-22-2010 08:44 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:48 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.