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How to bleed abs module - 2002 Nissan Pathfinder

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1998 CHEVY BLAZER...REPLACE MASTER CYLINDER, BOTH REAR CALIPERS AND ROTORS AND EVEN SCANNED THE ABS SYSTEM....NO PEDAL...hELP!!!


Vic, Because you changed master cylinder air probably got into the ABS modulator. Air can be very difficult to remove from an ABS modulator assembly because of the solenoid valves, if no bleed screw on the modulator, you may need a pressure bleeder and a scan tool to cycle modulator to bleed trapped air. Check the attached links,instruction and guides, Good luck. "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Bleeding ABS Brake Systems
http://www.automotiveforums.com/t980156-discuss1998_blazer_brake_bleed_problem.html
Bleeding ABS Systems

Jul 13, 2016 | Cars & Trucks

1 Answer

ABS light and traction light and no cruise control


how on earth would the blind know what is wrong.?
scan it? yet?
btw, newer cars cut cruise feature for any signs of danger.
new laws...
the traction needs ABS to work ,so forget that and fix ABS.
ABS needs 2 things to work , brakes and ABS.

so if brakes are bad, then ABS will get upset.
after all, if it cant brake right, how can the puter save you?
if brakes are known to be ok (inspections work here)
but in this case it was BREACHED by you, with out reading the book first.
then scan the ABS. (omg? code for dead sensor?) nah, you caused it..
easy

ABS resets every key on. so...
my guess, if ABS was happy before your actions( you never said)
then you got air in to the system. and failed to follow the FSM instructions on bleeding brakes, in ABS car.

front caliper, did you block the hose with cap, so it didn't allow air to the modulator? oops... never just let them drip... or . max pain.
bleed it again, (using any or all 5 ways to do so, bleeding is skill thing) (many modulators can not just be simply bled)

now Ill quote the 2012 fSM for you , under brakes

Data: -----------------------------------------------------------------
ABS Brake Bleeding
STANDARD PROCEDURE - ABS BRAKE BLEEDING

ABS system bleeding requires conventional bleeding methods plus use of a scan tool. The procedure involves performing a base brake bleeding, followed by use of the scan tool to cycle and bleed the HCU pump and solenoids. A second base brake bleeding procedure is then required to remove any air remaining in the system.

Perform base brake bleeding, (Refer to Brakes - Standard Procedure)(Refer To List 1).

Connect scan tool to the Data Link Connector.

Select ANTILOCK BRAKES, followed by MISCELLANEOUS, then ABS BRAKES. Follow the instructions displayed. When scan tool displays TEST COMPLETE, disconnect scan tool and proceed.

Perform base brake bleeding a second time, (Refer to Brakes - Standard Procedure)(Refer To List 1).

Top off master cylinder fluid level and verify proper brake operation before moving vehicle.

Jul 31, 2015 | 2012 Jeep Liberty Sport 4dr SUV 3.7L V6...

2 Answers

Trying to figure out how to bleed abs block on 2000 chevy silverado 1500


I am in the UK, so do not know this model, but I am a Bosch service tech and can tell you, if you have air in the ABS unit itself, you well need to connect to diagnostic tool with bleeding/venting program on it. The ABS pump needs to run and operate the solenoids to get the air out...

Sep 13, 2013 | 2000 Chevrolet Silverado 1500

1 Answer

How do I properly bleed the abs brakes on my honda accord 1998. The bleed nipples are on top of the brake calipers.


Bleeding ABS active brake systems requires a special tool to hold the pressure valves op3en in the ABS hydraulic control module.

Feb 02, 2012 | 1998 Honda Accord

2 Answers

My breaks wont work after changing the front rotars, calipars and pads. I bleed all four breaks starting with the back passenger side then back drivers side then front passenger side then front drivers...


As a general rule, if you have ABS you might have to cycle the pumps and valves to purge the old fluid out of the unit. This is either done via a dealer scan tool, a purge valve/bleeder valve on the ABS unit, or a less than ethical way. Drive your car and heavily engage the ABS, you know what I'm talking about.
Then you will need to repeat the bleeding process that you have already done.
Normal non ABS brakes, bleed once.
ABS brakes, bleed, cycle then bleed again.

Aug 07, 2011 | Chrysler Cirrus Cars & Trucks

1 Answer

How to bleed the ABS ?


the only way to bleed the ABS is with a scan tool?
everything on the brakes is just like the old days EXCEPT the ABS module which if needs bleeding will require a professional scan tool

why do you think you need to bleed the ABS module?

Jul 26, 2010 | 2002 Ford Explorer Sport

1 Answer

Bleeding brakes, The front brakes will not bleed out


In order to bleed the brakes on this car u need a special tool that holds the ABS Hydraulic control units pop-it valves open, without this special tool that plugs into the ABS you can't bleed the air out of the ABS control valve module, u either have to have the dealer do this or someone who has a factory equivalent of the ABS special bleeding tool, Snap-On tools most likely makes these, they are horribly expensive.

Mar 30, 2010 | 1996 Land Rover Discovery

2 Answers

ABS bleeding technique on GMC Yukon


If you forced the pads back into the calipers without loosening the bleeders you probably forced gunk into the abs modulator valves. Sometimes doing the automated bleed proceedure (need Tech or Bi Directional Scanner) will bring things back to life.

Nov 30, 2008 | 2003 GMC Yukon XL

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