Suspension & Brakes Springs | Shocks | Handling | Rotors

Line Lock issues

Thread Tools
 
Search this Thread
 
Old Apr 7, 2014 | 08:12 AM
  #1  
PhantomR/T's Avatar
Thread Starter
TECH Resident
iTrader: (6)
 
Joined: Jan 2005
Posts: 833
Likes: 0
From: Whorelando, FL
Default Line Lock issues

I have the SJM ABS delete and line lock combo. Rebuit calipers, SS brake lines, new pads, new rotors. I took the car to the track on Friday to test it out. When I get onto the line lock, the car doesn't stay planted, it rolls forward a little bit. I can feel the car trying to hold still, but no matter how much gas I am giving it, it doesn't hold still, and I can't get a good burnout.
I tried to power brake it once and did basically the same thing. Any ideas what's wrong? The brakes feel fine besides this, I just expected it to hold better in place.
Reply
Old Apr 7, 2014 | 08:31 AM
  #2  
LETZRIDE's Avatar
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

Did you pump the brakes twice, push line lock button (while still on the brakes), start the burn out while still on the brakes, release the brakes once the tires have started spinning but maintain holding the line lock button down and that should do it unless your solenoid is not working.

If you try and just start the burn out while only using the line lock to hold the brakes you'll generally roll forward, atleast in my experience.


The only other time I had that happen was when I did a burn out on the street with about 7 cases of beer in the trunk and 4 people in the car... I left about 4 coffee cups worth of rubber on the road, but she did not want to stay planted in one spot...
Reply
Old Apr 7, 2014 | 08:48 AM
  #3  
PhantomR/T's Avatar
Thread Starter
TECH Resident
iTrader: (6)
 
Joined: Jan 2005
Posts: 833
Likes: 0
From: Whorelando, FL
Default

No, I just set the line lock (Push the brake pedal all the way down and hold down the momentary button) let go of the brake and got onto the gas. I will try it the other way next time and see if that makes a difference. I hope the soldnoid is good, it's brand new!
Reply
Old Apr 7, 2014 | 12:35 PM
  #4  
LETZRIDE's Avatar
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

you have to push the brake before you push monetary switch for the solenoid, all the solenoid does is close a valve so that it locks fluid that you have pushed through your brake lines into the caliper in place so that it cannot go backwards into the master cylinder once you release the pedal.

If you push the button first and then the brakes you aren't doing anything, there is not enough fluid in the lines between the solenoid and the calipers to hold the car because you closed the valve before you pushed the brake pedal to fill them...
Reply
Old Apr 7, 2014 | 01:25 PM
  #5  
PhantomR/T's Avatar
Thread Starter
TECH Resident
iTrader: (6)
 
Joined: Jan 2005
Posts: 833
Likes: 0
From: Whorelando, FL
Default

That's what I did... (Brake pedal all the way down, then press momentary button, then release the brake pedal)
Reply
Old Apr 7, 2014 | 01:35 PM
  #6  
ss performance's Avatar
TECH Enthusiast
iTrader: (17)
 
Joined: Sep 2007
Posts: 634
Likes: 1
From: Southern NJ
Default

You can push the brake pedal, push the button, push the brake a second time while still holding the button, the while holding the brake down release the button and then push the button again and hold it. This allows more pressure to be applied to the calipers.

This is the method I had to use when I raced my Buick Grand National.

Good luck.
Reply
Old Apr 7, 2014 | 01:39 PM
  #7  
Jr.Samples's Avatar
TECH Regular
 
Joined: Oct 2011
Posts: 407
Likes: 2
From: Keller Tx
Default

Maybe your line lock solenoid is bleeding back a little when you set it.
Reply
Old Apr 7, 2014 | 04:28 PM
  #8  
LETZRIDE's Avatar
TECH Regular
15 Year Member
iTrader: (6)
 
Joined: Aug 2007
Posts: 488
Likes: 1
From: Toronto, ON
Default

I think many of them do bleed back a little, which is why I have always started the burnout with the brakes still depressed and the moment (fraction of a second) that I'm turning 4-5000rpm spinning the tires I just release the brakes while still holding the button.

Like I said, only time I ever had an issue was when I mentioned...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Apr 7, 2014 | 04:41 PM
  #9  
PhantomR/T's Avatar
Thread Starter
TECH Resident
iTrader: (6)
 
Joined: Jan 2005
Posts: 833
Likes: 0
From: Whorelando, FL
Default

Guess I still have to play around with it a little bit more. Thanks guys!
Reply




All times are GMT -5. The time now is 04:20 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE