Saturday, April 6th, 2013 AT 2:47 AM
Bleeding brake calipers. I used a vacuum bleeder to do this task. The right side caliper was bled without problem: It held vacuum when I pumped the device. But the left side was the problem: When I applied vacuum, the gauge needle would steadily drop to zero. At first, I thought. There was a leak from the caliper bleeder screw. I installed a different caliper, but the gauge of the bleeder tool would still indicate inability to hold vacuum. Why is it behaving this way? Is there a leak in the line leading to the left caliper? If so how can I make sure before I replace parts unnecessarily?