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Low hard brake pedal


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Hi long time lurker new poster.

2013 Journey SXT AWD 4 wheel ABS Discs

Having probs with a low but solid brake pedal. Low as within an inch of the floor. 
no loss of fluid

fluid looks like black coffee
no leaks underneath. 
hoses not pinched or swelling. 
Put all wheels on stands service brake holds all from spinning

E brake holds LR stopped but not RR. I spins freely. 
 

RR E brake suck on. Cable good but lever on caliper not returning. 
Worked the lever loose with PB blaster and vice grips and OT the E brake to hold

 

Pedal still low. Test drive on dirt road. Service brakes would not lock RR. ABS would not engage RR.

 

Replaced both rear calipers and pads. Bled a quart of dot 3 thru the system. Pedal the same, RR wheel same on test drive. 
plugged the master cylinder and had a high solid pedal. Reattached the brake lines and bled another quart of fluid thru the system. Still no luck. 

No ABS or TC lights. Did a scan of the ABS anyway.

C1082 vacuum pressure sensor erratic 

C006A Multi-Axis Acceleration sensor Internal Electronic failure

diagnostic flow charts about the same 

Connections

Voltage.
Short. 
Grounds. 
Bad sensor. 
Bad ABS Module. 
 I am going to do an ABS bleed tonight, then manual bleed, then abs then manual then erase the codes, and another test drive.. 

Any advice on diagnosis or repair will be greatly appreciated. 
still have to check wheel bearing and for brake fluid in the vacuum pump

wish me luck
 

 

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