BellinisAuto

2 hours ago, 5rebel9 said:

I thought I had suggested this before....

   A sinking brake pedal after replacing and bleeding of all these parts replaced would leave me to a faulty master cylinder(I know, already replaced) or a problem in the power assist system. 

   Try unplugging the electrical power brake vacuum pump mounted on the engine and see if pedal stays hard and "high"(little pedal movement). And also check the hose(s) from the booster to the pump and engine, I believe there is a Y connector and hose too another area on the engine for vacuum.

    MY this is turning out to be quite a MYSTERIOUS problem to track down!   

     Hang in there.   

Yes master replaced twice now. i have unplugged the hose to the electronic vacuum pump and no difference. 

1 minute ago, John/Horace said:

If you don’t bleed out air properly pedal will always be soft.

Diagonal pattern starting at passenger rear first. Small piece of clear hose on bleeder nipple will allow you to tell when no more air bubbles. Cycle parking brake during bleeding process as well. Any tiny leaks from bingo bolts will allow air back in system.

Takes several cycles of bleeding to remove air.

 

Abs sometimes needs pulsing via hand held diagnostic unit if it has a lot of trapped air. But usually it’s ok.

Yes I am aware. the bleeding procedure on journeys are LR,RF,RR,LF. witch I have done multiple times, also have done the automated bleeding procedure many times. have done a pressure test over night and it did not move when checked in the morning. I have Put close to 5Gallons of fluid in this system bleeding the brakes. I am positive there is no air getting into the system    

33 minutes ago, 2late4u said:

so did they replace them? or did you just pay them for a diagnostic fee and did the repair yourself?

I Replaced them Just because I already bought them once and they wanted. 750$$ to Replace Both Rear Calipers 

So got to the point where I was just scratching my head, so I took it into town to the Chrysler dealer. Told them everything I did and what its doing. they had it for about 2 weeks before I got a call. the told me it was the rear calipers, witch is weird because I just replaced all calipers with new. not reman. so I took what they said and warrantied them out and no difference. I'm at a lost and not sure what to do next...

16 hours ago, John/Horace said:

Air has to be getting back in system some how. 2011 so maybe a corroded line with a pin hole. Bleed it again and leave the wheels off overnight on a hoist.  Press pedal in the morning and have someone try and turn each wheel with brakes on.

If there is not at a visible leak, then wheel or wheels that can still be turned are allowing air back in. Examine every inch of metal line on that wheel.
 

I like nickel copper line for replacement, easiest to work with. Are you using a pressure bleeder or just manual bleeding.?
 

I have used manual, pressure and electronic bleeding procedures, al hard lines have been looked over and are in immaculate condition. I have already let it sit over night many times to hopefully find a drip somewhere and no luck. And all wheel will continue to lock up as they should.  what is puzzling is that when the the engine is off and hitting the brake pedal it is stiff like it should be. even when you give it a day it is still stiff, it will not soften or move as if there was air still in the system or getting into the system.   

17 hours ago, 2late4u said:

when  you find out your fix to this problem,,,, PLEASE report back on it,as said this has been asked here before but they never come back to report the fix,so no help for the next person

For the hell of it I replaced all soft lines and brake booster.   BY this  do you mean the rubber hoses from the brake lines to the calipers? some have found the rubber hoses being pinched due to rust between the hose and the clamp holding it down

 Yes I replaced all soft lines to the calipers. i will be looking into the vacuum pump today 

Ok so hoping for some help. Grandmother has a 2011 journey AWD with disc brakes all around. they were in need of rear brakes. so she took it to her local shop intown. the did the work and when she got the vehicle back the brake pedal would bleed to the ground but it did have brakes. She took it back to the shop.

*Will do My Best To Explain Everything*

Once they had it back the figured it just needs to be bleed, (Didn't work)

Second they replaced the master cylinder factoring in the symptoms. (Didn't work)

Third they couldn't figure it out themselves so they towed it to Chrysler dealer and had them Diagnose, Was told it was the rear right caliper,

Replaced it and same issue continued. 

They Gave up and told her sorry.

Week later she brought it to my shop. 

First Looking over everything that had previously been done, in my opinion master cylinder did not look new, (Northern IL Vehicle you can tell if something is new or been effected be our Salty Winters)

So replaced master cylinder with new, Bleed the system and seemed to have a hard firm pedal with engine off and engine running. 

Great figured it out and decided to Drive it for a day home. 

Started it up to go to work the next day and pedal goes to floor. BUT IT STILL HAS BREAKS, just bleeds to the floor

Get to the shop and start some diagnosing. 

Removed all wheels and did a brake test. 

Found front right caliper frozen, replaced both front calipers. 

After bleeding found right rear caliper is extending and then retracting completely with the release of brake pedal.

Replaced left rear caliper. So all Calipers have Been Replaced 

For the hell of it I replaced all soft lines and brake booster. 

Bleed system and Pedal still Bleeds to the floor but it has brakes. I'm Stumped

Sense the rest of the brake system has been replaced I went ahead and replaced the abs Pump/control Module. 

Bleeding the Brake System Over and Over mechanically and electronically still no difference in pedal. 

Checked all Brake System Fuses, All Good. 

And of course all this work is no charge to my grandmother. 

Any help would be appreciated!