As soon as engine is started brake pedal becomes soft

2011 HYUNDAI I20
36,000 MILES • 1.2L • 4 CYL • 4WD
Avatar
L TIATOM
  • MEMBER
  • 61 POSTS
On engine off, when brake is depressed and released several times, eventually it becomes hard. As soon as engine is started, it becomes soft. This is normal. However, recently, even when off it doesn't come hard even after several times of depressed. I can even do the play at any moment.
May 5, 2019 at 2:28 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Hello,

It sounds like the brake booster could be having an issue but to be sure can you please shoot a quick video with your phone so we can see what's going on, that would be great. You can upload it here with your response.
May 6, 2019 at 3:31 PM
Advertisement