07 TBSS brake bleed help

PapaBear · 12-11-2012, 06:16 PM

Well I busted that brake line a couple of weeks ago. The line ran from MC to ABS module. Replaced it, and bled brakes conventionally starting with RR moving closer to MC. I was aware that the ABS module would need to be commanded into an automated bleed by a TECH2 scanner, and it did. A friend came by the house with his TECH2 and hooked it up. It would not allow him to command the automated bleed. Said it could not control the module.......

He suggested triggering the ABS a few times, that sometimes it will bleed itself, so I went around the 'hood braking on some leaves and hit the ABS about a dozen times, and the pedal got better. It's still not 100%, and I don't know what else to do......

Any ideas on how to proceed at this point?

1998ta__1991rs · 12-11-2012, 06:43 PM

a tech 2 should do it, thats the only way ive heard of it being done

PapaBear · 12-11-2012, 06:55 PM

Quote:

Originally Posted by 1998ta__1991rs

a tech 2 should do it, thats the only way ive heard of it being done

Yeah not sure why it wouldn't work. Would command the abs motor but not the module.

Carlrx7 · 12-11-2012, 07:36 PM

did you bleed it after cycling the ABS?

PapaBear · 12-11-2012, 08:33 PM

Negative sir. Was informed that I shouldn't need to. Do u suggest that? I will do tomorrow regardless.

Diablo · 12-11-2012, 09:57 PM

If you have any DTC's stored in the chassi module it wont let you auto bleed the system. Some tech 2s need a candy module hooked up to it for late model vehicle in order for them to read also. Year and body type makes a huge diference also.

PapaBear · 12-11-2012, 09:59 PM

This gentleman is a ASE master tech at a GM dealership. We checked BCM for codes, none present. He was stumped. I'll pass along this info and see what's up.

Diablo · 12-11-2012, 10:03 PM

Yeah i am also a GM certified technician and i know that tech two in and out lol. Try another tech 2. I promise i wont steer you the wrong way. If he cant figure it out let me know and i would be happy to help you guys find the problem.

Diablo · 12-11-2012, 10:04 PM

Oh and also the brake bleeding is in the chassi module not the body control module.

PapaBear · 12-11-2012, 10:20 PM

Quote:

Originally Posted by Diablo

Yeah i am also a GM certified technician and i know that tech two in and out lol. Try another tech 2. I promise i wont steer you the wrong way. If he cant figure it out let me know and i would be happy to help you guys find the problem.

If I activate the ABS a few times, would that push the air through to the wheels? Would bleeding at the wheels again help?

Miker · 12-11-2012, 10:53 PM

One time fucked up and let the ABS module go dry.

I bleed the brakes; drove around the block engaging ABS a couple times then bleed again and all was good.

Diablo · 12-11-2012, 11:10 PM

Quote:

Originally Posted by Miker

One time fucked up and let the ABS module go dry.

I bleed the brakes; drove around the block engaging ABS a couple times then bleed again and all was good.

Agreed if you cant do the auto bleed keep engaging the ABS and retry bleeding. If that dosent help you might hav another issue. Also if you have a vaccumme brake bleeder it would help out alot.

PapaBear · 12-12-2012, 03:12 PM

Damn rain.....really wanted to get this done today.

TLyons90 · 12-12-2012, 04:44 PM

Who need's brakes?!?

bababuschka · 12-12-2012, 07:36 PM

Quote:

Originally Posted by PapaBear

Damn rain.....really wanted to get this done today.

I can't concentrate on anything you post....

PapaBear · 12-12-2012, 07:46 PM

Quote:

Originally Posted by bababuschka

I can't concentrate on anything you post....

Nobody ever did anyway lol

Carlrx7 · 12-12-2012, 08:23 PM

this is perfect weather to test the ABS!

PapaBear · 12-12-2012, 08:25 PM

Quote:

Originally Posted by Carlrx7

this is perfect weather to test the ABS!

Yeah but then she would get wet.....washed it yesterday so she's staying tucked away in the garage. Never buy another black vehicle in my life, mark my words.

2001hawk · 12-12-2012, 09:19 PM

Try having two at once.

LXtasy · 12-12-2012, 10:01 PM

you wash a vehicle with water. Rain is water.

12-11-2012, 06:16 PM	#1
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	07 TBSS brake bleed help Well I busted that brake line a couple of weeks ago. The line ran from MC to ABS module. Replaced it, and bled brakes conventionally starting with RR moving closer to MC. I was aware that the ABS module would need to be commanded into an automated bleed by a TECH2 scanner, and it did. A friend came by the house with his TECH2 and hooked it up. It would not allow him to command the automated bleed. Said it could not control the module....... He suggested triggering the ABS a few times, that sometimes it will bleed itself, so I went around the 'hood braking on some leaves and hit the ABS about a dozen times, and the pedal got better. It's still not 100%, and I don't know what else to do...... Any ideas on how to proceed at this point?

12-11-2012, 06:43 PM	#2
1998ta__1991rs Senior Member Join Date: Jun 2008 Location: West Ash Posts: 4,283	a tech 2 should do it, thats the only way ive heard of it being done __________________ Funny

12-11-2012, 07:36 PM	#4
Carlrx7 Senior Member Join Date: Apr 2010 Location: Ladson,SC Posts: 3,813	did you bleed it after cycling the ABS? __________________ Dark Aladdin

12-11-2012, 09:57 PM	#6
Diablo Senior Member Join Date: Oct 2009 Posts: 132	If you have any DTC's stored in the chassi module it wont let you auto bleed the system. Some tech 2s need a candy module hooked up to it for late model vehicle in order for them to read also. Year and body type makes a huge diference also. __________________

12-11-2012, 10:03 PM	#8
Diablo Senior Member Join Date: Oct 2009 Posts: 132	Yeah i am also a GM certified technician and i know that tech two in and out lol. Try another tech 2. I promise i wont steer you the wrong way. If he cant figure it out let me know and i would be happy to help you guys find the problem. __________________

12-11-2012, 08:33 PM	#5
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	Negative sir. Was informed that I shouldn't need to. Do u suggest that? I will do tomorrow regardless.

12-11-2012, 09:59 PM	#7
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	This gentleman is a ASE master tech at a GM dealership. We checked BCM for codes, none present. He was stumped. I'll pass along this info and see what's up.

12-11-2012, 10:04 PM	#9
Diablo Senior Member Join Date: Oct 2009 Posts: 132	Oh and also the brake bleeding is in the chassi module not the body control module. __________________

12-11-2012, 10:53 PM	#11
Miker Senior Member Join Date: Mar 2010 Location: Goose Creek, SC Posts: 811	One time fucked up and let the ABS module go dry. I bleed the brakes; drove around the block engaging ABS a couple times then bleed again and all was good. __________________ 06 GTO-aro AutoXer Printing my car's CARFAX uses a lot of toner.

12-12-2012, 03:12 PM	#13
PapaBear Senior Member Join Date: Aug 2010 Posts: 2,809	Damn rain.....really wanted to get this done today.

12-12-2012, 04:44 PM	#14
TLyons90 Senior Member Join Date: Nov 2012 Location: Greenville, SC Posts: 314	Who need's brakes?!?

12-12-2012, 08:23 PM	#17
Carlrx7 Senior Member Join Date: Apr 2010 Location: Ladson,SC Posts: 3,813	this is perfect weather to test the ABS! __________________ Dark Aladdin

12-12-2012, 09:19 PM	#19
2001hawk Senior Member Join Date: Aug 2010 Posts: 1,224	Try having two at once. __________________ People call me John, Jim, or Bobby.

12-12-2012, 10:01 PM	#20
LXtasy Senior Member Join Date: Dec 2006 Location: Summerville, SC Posts: 9,564	you wash a vehicle with water. Rain is water. __________________