Blingamaring88 Posted September 13, 2022 Report Share Posted September 13, 2022 Hello my name is Cameron and I'm working on a 2013 edge right now and have done the brakes but the pedal is still going to the floor. I've replaced the master cylinder, abs module, put new rotors in the rear resurfaced the front and put new pads all the way around. I have bled the brakes I would say a tot of ten times and the pedal hasn't changed. It'll feel like it's going to build pressure but still does not. Can anyone help? Quote Link to comment Share on other sites More sharing options...
Haz Posted September 13, 2022 Report Share Posted September 13, 2022 This recent discussion may be helpful. Good luck! 1 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted September 17, 2022 Report Share Posted September 17, 2022 Few years ago I had the same problem. Took it to the dealer and they replaced the brake booster. 2 Quote Link to comment Share on other sites More sharing options...
Miner Posted October 11, 2022 Report Share Posted October 11, 2022 I've been all the way through this... brake booster recall (small tear in the diaphragm) HPU replacement (advised by main dealer) Master Cylinder replacement (done same time as the HPU - on dealer list)... braking system felt better for a refresh (car was IRO 240k km) but none of them fixed the intermittent issue... after a test drive I requested the dealer to replace the vacuum hose (at my instruction and cost) as it was the only item pending that hadn't been changed... and they point blank refused. Fixed the issue myself with a $30 OEM replacement hose and took it in to the garage and dropped in on the service advisor's desk and left after a brief discussion. My car was revving up intermittently also, which is indicative of a vacuum leak / air ingress. Hope that helps. Keep us posted. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted October 15, 2022 Report Share Posted October 15, 2022 Basically there's four things that can cause the brake pedal to go to the floor. 1. Air in the Brake Lines 2. Brake Fluid Leaking 3. Brake Booster Is Failing or Is Bad, and Master Cylinder Is Going Bad As you have addressed all of these (I assume you would have noticed a leak), I'd center in on bleeding the abs module. https://rxmechanic.com/how-to-bleed-abs-module-without-scan-tool/ 1 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted January 1, 2023 Report Share Posted January 1, 2023 (edited) Did you check the brake booster? Edited January 1, 2023 by enigma-2 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted January 2, 2023 Report Share Posted January 2, 2023 Looking at the service manual, 1.If the pedal goes down quickly: brake fluid leaks, master cylinder, hydraulic control unit. 2. Excessive brake travel: leaks, master cylinder, brake calipers, stuck guide pins, flexible hoses 3. Excessive brake effort: weak engine vacuum to booster, booster hose, booster itself, booster check valve & worn pads. I know when I had this problem, turned out to be several problems. The pins were rusted on the rear, rear calipers were not squeezing to pads propetly and the brake fluid was old. Shop kept telling me the back pads were still good, plenty of pad thickness. Finally took it in ordering new pads & rotors on rear, and a complete brake fluid change. Great brakes now. This was after they replaced the booster. I'd be curious about checking your booster for excessive travel. Quote Link to comment Share on other sites More sharing options...
Gary j Posted November 15 Report Share Posted November 15 Has anyone figured this out? My brakes go straight to the floor with no resistance. New brakes,new master cylinder and bled out abs module. Quote Link to comment Share on other sites More sharing options...
1004ron Posted November 15 Report Share Posted November 15 Just now, Gary j said: Has anyone figured this out? My brakes go straight to the floor with no resistance. New brakes,new master cylinder and bled out abs module. Welcome. If the bleed process is correct then I'd suspect that you got a bad replacement master cylinder. Quote Link to comment Share on other sites More sharing options...
Gary j Posted November 15 Report Share Posted November 15 That's what i thought also. This one is my second master cylinder in 2 days. Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted 7 hours ago Report Share Posted 7 hours ago Did you bleed the abs module? Quote Link to comment Share on other sites More sharing options...
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