Recent Topics
Porsche 75w90
by dgjks6
07/22/18 08:51 AM
02' Silverado 5.3L Differential oil (G80 Locker)
by Gito
07/22/18 08:09 AM
Removing a concrete sidewalk
by Oldtom
07/22/18 07:35 AM
ATF exchange using the cooler line
by ugabulldog
07/22/18 07:00 AM
High volume oil pumps?
by dlundblad
07/22/18 06:49 AM
Penrite LV ATF
by toyota62
07/22/18 01:30 AM
Valvoline MaxLife Full Synthetic Multi-Vehicle ATF
by glmtd
07/22/18 12:17 AM
Kendall GT1 euro
by Bullwinkle007
07/22/18 12:05 AM
$14 5qt. QS 10w-40 syn blend + $5 GC - wallys
by lairdwd
07/21/18 09:06 PM
Synthetic from dino?
by S2K
07/21/18 08:35 PM
Voltage fluctuation 2012 Elantra
by schuylkill
07/21/18 08:28 PM
Tranfer Case 2016 GMC Sierra 1500 6.2 8 speed
by dareo
07/21/18 07:39 PM
Caliper slide pin questions
by ZZman
07/21/18 07:24 PM
Perfect Afternoon with F7Fs
by Yah-Tah-Hey
07/21/18 06:10 PM
Blending E85 to use as cleaner in non-FFV
by ltslimjim
07/21/18 05:33 PM
01 Tahoe instrument cluster replacement question
by mjk
07/21/18 05:25 PM
Reasonable price to pay some one to detail?
by Colt45ws
07/21/18 05:09 PM
FCA upheaval--Marchionne ill, Jeep CEO takes over
by Carmudgeon
07/21/18 04:42 PM
Duck Boat
by Zee09
07/21/18 04:23 PM
What are these valves and can I use them to...
by E150GT
07/21/18 04:06 PM
Newest Members
Brdftbll, NievesStefanor, Zervun, ppreedom, krugger
65527 Registered Users
Who's Online
88 registered (4WD, 2015_PSD, 2009Edge, 555, 10 invisible), 1393 Guests and 32 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65527 Members
67 Forums
287464 Topics
4795381 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4517016 - 09/15/17 12:09 PM Bleeding ABS unit - Mazda
Chester11 Offline


Registered: 04/13/17
Posts: 130
Loc: PA
I think I pushed some air into my ABS unit. At least I am hoping that is the problem.

I've changed pads, and replaced the fluid, but the pedal is still soft. I'm going to relube the caliper pins and bleed again this weekend.

The manual says ABS bleed is a dealer only process - apparently it requires a scan tool to activate the system and push the air out of the unit and into the brake lines. (My interpretation).

Will some hard stops bleed the unit by activating the system? Anyone tried it?

Top
#4517025 - 09/15/17 12:24 PM Re: Bleeding ABS unit - Mazda [Re: Chester11]
Silverado12 Offline


Registered: 02/26/13
Posts: 3149
Loc: Central Virginia
Not sure if this is even related, but I had a hard time with a Hyundai Santa Fe brake job and I bled them diagonally and that ended up fixing it. Also, another thing that drove me nuts was the pads took a long time to 'feel right".
_________________________
12 Chevy Silverado ext. cab LS, 2WD 4.3 auto
10 Mustang GT 5.0 auto
07 Harley Dyna Street Bob 96 c.i. 6 sp.
00 Mustang GT auto

Top
#4517045 - 09/15/17 12:55 PM Re: Bleeding ABS unit - Mazda [Re: Chester11]
Eddie Offline


Registered: 12/07/03
Posts: 9657
Loc: Florida, Cape Coral
Once you've messed up and gotten air into a ABS system it is difficult to get the air out with out the recycling tool. A brake shop should be able to do this. Trying to clear the system of air by abusing the brake system with multiple panic stops would prove frutal I think. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#4517162 - 09/15/17 03:12 PM Re: Bleeding ABS unit - Mazda [Re: Chester11]
KGMtech Offline


Registered: 10/17/14
Posts: 976
Loc: SW Ontario Canada
Had the same problem with my wife's 2009 Ford Flex. One of the rear calipers developed a leak and I was not aware until my oldest son told me after he drove for 2.5 hours round trip to a concert...the BF reservoir got low enough to get air in ABS system.

2 attempts by me with my Motive Bleeder, no luck. Tried the redneck way of activating the ABS system on gravel roads, still no luck.
Took it to Ford dealer, spent the money and they activate ABS circuits by OBDII portal and all was good. Lighter wallet, but hard brake pedal.
_________________________
2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL

Top
#4517244 - 09/15/17 05:13 PM Re: Bleeding ABS unit - Mazda [Re: Chester11]
michaelluscher Offline


Registered: 10/07/12
Posts: 2440
Loc: Staten Island, NY
FORScan might be able to do it
_________________________
'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k

Top
#4517274 - 09/15/17 05:56 PM Re: Bleeding ABS unit - Mazda [Re: Chester11]
nthach Offline


Registered: 01/02/04
Posts: 3994
Loc: California
Originally Posted By: Chester11


Will some hard stops bleed the unit by activating the system? Anyone tried it?

Depends on the system - you just described how I had to bleed a friend's Tahoe with the Kelsey-Hayes ABS system.

You can try a few hard stops to trigger the ABS and then bleed. A pressure bleeder does help with ABS. Have you tried topping off the MC and cracking the line fittings at the modulator to get fluid moving in that direction and then bleeding at the wheels?

Top
#4517536 - 09/16/17 01:02 AM Re: Bleeding ABS unit - Mazda [Re: nthach]
Chester11 Offline


Registered: 04/13/17
Posts: 130
Loc: PA
Originally Posted By: nthach


You can try a few hard stops to trigger the ABS and then bleed. A pressure bleeder does help with ABS. Have you tried topping off the MC and cracking the line fittings at the modulator to get fluid moving in that direction and then bleeding at the wheels?


Not tried this - the lines looked pretty small and was afraid to break them, or introduce more air into the system.

Top
#4517538 - 09/16/17 01:06 AM Re: Bleeding ABS unit - Mazda [Re: Chester11]
Shannow Offline


Registered: 12/12/02
Posts: 40205
Loc: 'Stralia
Find some wet grass, and let it grind to a halt a few times between bleeds.

Top
#4517563 - 09/16/17 03:50 AM Re: Bleeding ABS unit - Mazda [Re: Shannow]
ChevyMan93 Offline


Registered: 06/05/17
Posts: 133
Loc: Tennessee
Originally Posted By: Shannow
Find some wet grass, and let it grind to a halt a few times between bleeds.


Fully agree with this statement.
_________________________
2016 Chevrolet Silverado Z71 5.3
2017 Honda CR-V 2.4

Top