My Grandson has a 1988 or 1989 Corsica that has a leak in the brake line going to the rear. Does anyone know off hand what size line we need to fix it? I haven't looked at it yet.

 

Probably regular size brake line you can buy at the auto parts store.

Are you replacing the whole line, just the section, or what?

The other lines might be whack too.

 

We were planning on just replacing a section but you are right they may all need to be replaced. I was wondering what size to get before I started to work on it but on second thought I had better start taking it apart to see what all I'll need and go from there.
Thanks

 

I didn't find it to be too easy of a job, but then again it was my first time and I had little clue as to what I was doing.

My 87 Cavalier lines were rotted pretty bad, but nothing leaking. I had the motor out and replaced all the fuel/brake lines. The fuel lines were different sizes and a PITA to bend. The brake lines were easier. I had to use a flare tool to create connections as I had to cut lines to length where applicable. (I read some where that's not exactly legal on rear lines, OOPS (I could be mistaken)).. I'm not sure I could find a place to splice on the rear lines if I had to because of the rust as my car was from the road salt belt.

I'm not sure there's a better method these days (this was 2001 when I did this). The bubble(?) flaring tool took some practice. A machine shop guy told me to apply some oil before flaring - that helped out a ton and made them look at least close to normal.

I haven't searched - but maybe YOUTUBE has some videos on howto these days and there are write ups on the internet.

The fuel lines ran next to the brakelines on the cavalier, I would suspect the same on the corsica.

 

Funny thing I am getting ads on the website from Dorman for brake lines.

Dorman Products

"Preformed to fit the application, saving time by eliminating bending, cutting and flaring".

check it out.

 

The lines are 3/16". You will need either a ISO/bubble flare tool or double flare kit, unions , nuts , brke fluid side cutters, zip ties, tubing cutter and a tube bending tool.

 

I haven't watched this youtube, but the subject is spot on.