Line Lock Brake Problem

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Sep 12, 2006 | 06:25 AM

97Rob

Thread Starter

Burning Brakes

Joined: Jan 2005

Posts: 900

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From: New Bern NC

Line Lock Brake Problem

Had a line lock installed on a 97 at the fire wall under the hood. The ABS is located in the rear of the car. Since the install the brake peddle is soft. First push goes nearly to the floor, then it tightens up. We have bleed the breaks 4-5 times, and there doesn't seem to be any air in the line. Thanks for your input.

Sep 12, 2006 | 07:44 AM

keanucosmo

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Joined: May 2004

Posts: 95

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From: Stone Mountain GA

If it is tied into ABS, you may have to have brakes bled with a Tech 2 scan tool.

Sep 12, 2006 | 08:48 AM

Z06ufgrad2002

Safety Car

Joined: Nov 2002

Posts: 4,394

Likes: 6

From: Melbourne FL

It sounds more like a bad master cylinder.

The pedal should have the same amount of travel after each push if it was related to air in the lines.

Sep 12, 2006 | 10:42 AM

0Jeff @ TPE

Former Vendor

Joined: Feb 2004

Posts: 10,876

Likes: 8

From: Las Vegas NV

St. Jude Donor '06 & '12

Quote:

Originally Posted by keanucosmo

If it is tied into ABS, you may have to have brakes bled with a Tech 2 scan tool.

It sounds to me like you have to bleed the ABS system. (Its different from bleeding the calipers) This is ONLY done with a Tech 2 or similar scanning tool.

Sep 12, 2006 | 03:23 PM

97Rob

Thread Starter

Burning Brakes

Joined: Jan 2005

Posts: 900

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From: New Bern NC

I appreciate the input, and will pass it on. Thanks!

Rob Edwards

Sep 12, 2006 | 07:52 PM

97Rob

Thread Starter

Burning Brakes

Joined: Jan 2005

Posts: 900

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From: New Bern NC

Back to the top for you guys that work late.

Sep 12, 2006 | 07:58 PM

chpmnsws6

Drifting

Joined: Jul 2006

Posts: 1,700

Likes: 60

From: Springfield IL

So would it be better to put the line lock after the ABS unit?

Nov 4, 2006 | 10:48 PM

cenman

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Joined: Aug 2005

Posts: 91

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From: Southern MD

97Rob,

Did you ever get this issue resolved? If so, how? I just installed a line lock on my 98 today and I'm having the exact same issue? Thanks in advance.

Randy

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Nov 6, 2006 | 11:28 AM

UVETTYA

Instructor

Joined: Aug 2004

Posts: 179

Likes: 0

From: Surprise Az

I want to install a line lock so I hope you guys that have one will speak up.

Nov 6, 2006 | 11:47 AM

#10

97C5ENVY

Melting Slicks

Joined: May 2000

Posts: 2,974

Likes: 5

From: CenTex Texas

I had the same issue after my line lock was installed. What i did to fix it was flush the entire brake system (front and back). I'd give that a try first before spending lots of $$$$.

Nov 6, 2006 | 02:04 PM

#11

Jackal

Drifting

Joined: Jan 2002

Posts: 1,498

Likes: 3

From: Sacramento CA

Quote:

Originally Posted by Z06ufgrad2002

It sounds more like a bad master cylinder.

The pedal should have the same amount of travel after each push if it was related to air in the lines.

Nov 6, 2006 | 10:08 PM

#12

cenman

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Joined: Aug 2005

Posts: 91

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From: Southern MD

Thanks for the suggestion 97C5ENVY. I'll try re-bleeding everything this weekend.

Nov 7, 2006 | 10:55 PM

#13

Howard Wolf

Instructor

Joined: May 2005

Posts: 227

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A little off the subject. I noticed your car on the trailer. Not sure if you haul it in this position but it looks like it's too far aft. Do you notice any excessive swaying at highway speed? Especially when a semi passes you? If so, moving it forward should help. I have a trailer like yours and position my C5 such that the rear view mirror is about 2-3 inches ahead of the centerline of the front axle. Works well for me.

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