When I start my car and press the brake it sound air and go down little bit, even on a motion when you press it down it sound air before catching.
Jul 18, 2019 at 6:16 AM
When I press the brake it sound air and go down little
2007 LEXUS GX 470
MAFI DARE MICHAEL
- MEMBER
- 1 POST
- FOLLOW
Advertisement
Hi Michael,
More than likely this is the brake booster. Do the brakes operate normally? If you have the engine off and you press the brakes, you will probably get 1-3 presses of the pedal before the vacuum is gone and the pedal gets hard. If this is the same noise you are hearing and the brakes are working then I suspect this is a normal condition.
More than likely this is the brake booster. Do the brakes operate normally? If you have the engine off and you press the brakes, you will probably get 1-3 presses of the pedal before the vacuum is gone and the pedal gets hard. If this is the same noise you are hearing and the brakes are working then I suspect this is a normal condition.
Jul 19, 2019 at 1:05 PM
Hello and welcome to 2carpros. Can you upload a video of the sound when you press on the brakes? I am asking because the GX does not have a brake booster? It has an acuator which is hydraulic and electric controlled? Attaching image.
Image (Click to enlarge)
Aug 3, 2019 at 10:47 PM
Advertisement