Have an 05. All of a sudden the brake pedal goes to the floor when depressed. It still stops but is worrying me. Displaying "service stability" message and check brake fluid. Just topped off brake fluid recently. No leaks in driveway. Anyone have any ideas. I dont want to take it to the stealership

 

Sounds like fun... Its a game really... When will I run out of DOT3... If you lose... You die. Haha. I remember this game in my 1955 Apache 3100 4x4.

Brake lines should be 100% sealed and shouldn't require any filling. When you replace pads and you push in the caliper's pistons, fluid should go back into the master cylinder reservoir. As you use up break pad, fluid goes into the lines and out of the reservoir. So either... Your pads are beyond worn, or you have a leak somewhere. The whole system should be inspected for leaks.

 

Front brake lines are notorious for failing. Cut the foam off the brake lines there the rubber meets the metal fittings. You might find a pin hole in the line from rust.

 

Probably blew the line off. Check the inside of your wheels and see if you see brake fluid there. May not be showing up on the driveway, because its landing inside of rim.

I would put my money on a failed line. I've had BOTH my front brake lines fail, causing it to only grip when its at the floor, and under harder braking, it feels like the rear locks up like that.

 

another vote for front lines. same thing happened to me. some racingbrake.com lines and a bleed and i was back on the road.

 

If you can't find a leak anywhere, make sure to check inside the booster. It could be the rear seal in the master cylinder is leaking into the booster.

 

Yeah, Racing Brake lines all the way. I decided to do preventive maintenance and put those badboys on there before anything could break.