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Just replaced power brake booster, and brake light will not…

Customer Question
Just replaced power brake...

Just replaced power brake booster, and brake light will not go off and brake peddle is really soft.

Mechanic's Assistant: Have you checked the brake fluid? How's the level and when was it last changed?

Have bled the brakes no air in lines and reservoirs full

Mechanic's Assistant: What is the model/year of your Mazda?

2010 cx9

Mechanic's Assistant: Are you fixing your CX-9 yourself? What have you tried so far?

Yes. Bled all the brake lines.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Engine. Seems to be cutting out when in drive.

Submitted: 4 months ago.Category: Mazda
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Customer reply replied 4 months ago
Still have all 4 tires off
Answered in 11 minutes by:
11/26/2017
Mazda Mechanic: CurtisE, Mechanic replied 4 months ago
CurtisE
CurtisE, Mechanic
Category: Mazda
Satisfied Customers: 1,703
Experience: Qualified Automotive Mechanic, LPG, Airconditioning & Vehicle Diagnostics
Verified
You may need to adjust the brake booster pushrod that pushes into the brake master cylinder. Or you may have left off the oring that slides onto brake master cylinder and seals it between the cylinder and booster.
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Customer reply replied 4 months ago
O ring was replaced. How would you adjust the rod?
Mazda Mechanic: CurtisE, Mechanic replied 4 months ago
By turning anti clock wise and it extends out on a thread. But the fact the engine is cutting out when in drive i suspect and vacuum leak. Have engine running and spray water around booster and see if vehicle stalls
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CurtisE
CurtisE
CurtisE, Mechanic
Category: Mazda
Satisfied Customers: 1,703
1,703 Satisfied Customers
Experience: Qualified Automotive Mechanic, LPG, Airconditioning & Vehicle Diagnostics

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