I need to find which lines supply the back as I have a leak in the rear brake line

1993 OLDSMOBILE CIERA
166,000 MILES • 3.3L • 6 CYL • FWD • AUTOMATIC
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SCOTT WILLIAMS2
  • MEMBER
  • 1 POST
my master cylinder has four lines to it one for each brake and I need to find which lines supply the back as I have a leak in the rear brake line. I have two different size fittings on the lines two look to be 1/2 and two look to be 9/16 which of those would be for the rear brakes.
Oct 5, 2016 at 3:09 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
the back two lines on master are for rear brakes. just follow them back to which ever line leaks.
Oct 5, 2016 at 5:20 AM
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