No brakes

jmana · Post by **jmana** » 02 May 2019, 08:45

2004 XC90 2.5 liter. Someone cut in front of me and slammed on her brakes, which made me slam on my brakes. Ever since then my brakes have been getting worse and worse, to the point where there isn't any braking power at all and I can't drive it. I checked for codes and it said the 2 sensors on the brake booster are reading low pressure. I'm assuming the brake booster is shot. Or is there something I should look at first?

Post by **DeadEric** » 02 May 2019, 09:15

I'd be more concerned about the master than the booster. Booster failure is more linked to hard pedal. Master failure is felt best with squishy pedal but double or triple pump will firm it up. If that's the case, you're seals are blown and replacement is best.

If you do it yourself, don't forget to bench bleed the master.

Post by **cn90** » 03 May 2019, 13:12

Brake system is life-and-death issue.
Get an expert to look at it.