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98 C5 with rusty brake lines

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Old Sep 9, 2020 | 05:49 PM
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Default 98 C5 with rusty brake lines

I recently bought a 98 c5 with 112K miles. Great looking car but some issues came up about a month after purchasing. The Antilock brake module and stability control came up as needing service. That part isn't available I'm told. Then an inspection by Chevy dealer service said brake lines were rusted. Talked to a vette shop and they said it was a big deal to fix the brake lines since they were wedged up in the tunnel. Also parts have to be fabricated. Recently the dashboard brake light comes on during acceleration which means check the brakes. Brake fluid level ok and brakes working fine other than antilock.

My plan is to keep driving as the brakes are working and the fluid level seems ok. My question is will this be risky behavior to keep driving or do I have to bite the bullet and pay to have these lines replaced now.

Thanks for your help on this question.


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Old Sep 9, 2020 | 06:13 PM
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Originally Posted by MooreBama
I recently bought a 98 c5 with 112K miles. Great looking car but some issues came up about a month after purchasing. The Antilock brake module and stability control came up as needing service. That part isn't available I'm told. Then an inspection by Chevy dealer service said brake lines were rusted. Talked to a vette shop and they said it was a big deal to fix the brake lines since they were wedged up in the tunnel. Also parts have to be fabricated. Recently the dashboard brake light comes on during acceleration which means check the brakes. Brake fluid level ok and brakes working fine other than antilock.

My plan is to keep driving as the brakes are working and the fluid level seems ok. My question is will this be risky behavior to keep driving or do I have to bite the bullet and pay to have these lines replaced now.

Thanks for your help on this question.
I'd certainly hate to experience a brake failure, so I'd look into seriously inspecting the hard lines.While they're "in the tunnel", you can drop the middle section of the exhaust system, and then drop the tunnel access plate. I'd look into a specialty shop, like Inline Tube or Stainless Steel Brake, to see if they offer pre-bent lines.
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Old Sep 23, 2021 | 02:47 AM
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Everyone’s brake lines are rusty to some level. I’m not going to mess with my ‘98 lines. Who has had a line blow in normal driving (not track)?
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Old Sep 23, 2021 | 08:22 AM
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The C5 is reaching the age where items like this will soon need to be addressed and replaced..
The aftermarket already has a solution..just Google Corvette C5 stainless Steel Brake lines and you will find brake line kits...
the downside is it can be a bit labor intensive to replace the brake lines in the chassis tunnel...
Cheers,
Goose

Last edited by 69; Sep 23, 2021 at 06:25 PM. Reason: spellin
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Old Sep 23, 2021 | 10:23 AM
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Originally Posted by 69
The C5 is reaching the age where items like this will soon need to be addressed and replaced..
The aftermarket already has a solution..just Google Corvette C5 srainless Steel Brake lines and you will find brake line kits...
the downside is it can be a bit labor intensive to replace the brake lines in the chassis tunel...
Cheers,
Goose
I had a weird rust out on tunnel area one little spot. I didnt want to open up a can of worms. So i got a press fit coupling and worked like a charme. There's not much pressure in the rear brakes, i believe c5s are something like 80/20. Correct me if im wrong.

Last edited by helga203; Sep 23, 2021 at 10:24 AM.
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Old Sep 23, 2021 | 05:42 PM
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Originally Posted by 69
The C5 is reaching the age where items like this will soon need to be addressed and replaced..
The aftermarket already has a solution..just Google Corvette C5 srainless Steel Brake lines and you will find brake line kits...
the downside is it can be a bit labor intensive to replace the brake lines in the chassis tunel...
Cheers,
Goose
I agree that it would be a bit of work, to change those lines. I think that properly bleeding the system, would be the bigger issue.
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Old Sep 23, 2021 | 08:21 PM
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Originally Posted by RedC5
Everyone’s brake lines are rusty to some level. I’m not going to mess with my ‘98 lines. Who has had a line blow in normal driving (not track)?
I did! Right in my driveway. Rusty as ****. Both of them.

Pulled them out and replaced with the nickel-copper ones that aren't supposed to rust. Forced me into the brake fluid replacement that I'd been avoiding.

I had to make them and learn to do the double-bubble flair but that's what makes Corvette ownership such a thrill.

Brakes are great now.
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Old Sep 24, 2021 | 02:15 AM
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Originally Posted by johnson-rod
I did! Right in my driveway. Rusty as ****. Both of them.

Pulled them out and replaced with the nickel-copper ones that aren't supposed to rust. Forced me into the brake fluid replacement that I'd been avoiding.

I had to make them and learn to do the double-bubble flair but that's what makes Corvette ownership such a thrill.

Brakes are great now.
How many miles? So you never changed the fluid? Probably a contributor rusting from inside out also.🤷🏻‍♂️
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Old Sep 24, 2021 | 09:05 PM
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When the brake lines blew it was around 140K. Parked outside on the grass and used in all weather (within reason). It broke under the little black clips on the rear sub frame. Rusted from the outside.
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Old Sep 25, 2021 | 08:48 PM
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Originally Posted by johnson-rod
When the brake lines blew it was around 140K. Parked outside on the grass and used in all weather (within reason). It broke under the little black clips on the rear sub frame. Rusted from the outside.
Makes more sense corroded with mileage and outside etc…🤷🏻‍♂️
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