cobradvm

My ABS modulator has been non functional for a while now. All the fluid has drained out of it, and I have disabled it by removing the fuse. I did refill it once and bleed the ABS system and that worked until it all leaked out again. I was informed that this was a $1000 repair, so I just gave up on repairing it.

Well after searching through the forums, it turns out it may be a cheap simple fix requiring the replacement of an O ring. It seems this is available from the dealer. Does anyone have a part number for this O ring, or do I just ask for a brake modulator O ring?

Also does anyone have a write up on this or have done this repair themselves? - I have come across 1-2 descriptions, but nothing in any great detail.

Thanks for you help

Howard.

GhostAccord

O-RING img #-022 Part # 57072-ST5-003
O-RING img #-023 Part # 57315-ST5-003

What part number are you looking for in particular? These are the only two "O-Rings" listed for the ABS Modulator.



Never done it myself Sorry, No ABS on my beast!

cobradvm

I was just needing a part number so when I go to the dealer they can just look it up, rather than them trying to figure out what I need - I have found it usually works better that way!

Those are perfect! Thanks!

cobradvm

I wonder which one of these is the one that usually leaks - anyone know???

Thanks!

GhostAccord

For under $10.00 you can get both of these O-Rings. If there isn't anything too technical about changing them why not replace both while your in there???

Do you have access to a chiltons manual? There is a step buy step for how to relieve the pressure from the ABS system and replace the accumulator o-ring (#23 on the diagram) I've been reading that, that is the one that frequently leaks....

I can send you a PDF of the ABS section of my manual if you don't have access to one. PM me your email if you want it.


Modified by GhostAccord at 7:09 PM 10/15/2007

cobradvm

Thanks Ghost - I have ordered the two rings from a local Honda dealer - about $7 for the two of them - I'll be mightily impressed if I can fix this for $7!! We'll see - fortunately I don't need to have this car as a daily driver. My other car is 1990 Mustang that has a stroked and bored 331ci V8 under the hood - puts down about 350 rwhp - fun to drive but a bit sore on gas!

I do have a Chilton's for my Honda

GhostAccord

Good luck with the o-ring replacements. May cost you a bit more than $7.00. If you need to buy brake fluid to bleed the system....lol

JimBlake

Use the ABS bleed screw (not numbered, but shown under the reservoir in that picture) to release the pressure before you start. Carefully, because there's enough pressure to cut your skin if you lose control of what you're doing.

I've heard they can also leak from some plugs on the modulator. Maybe they're the ones shown in that picture on the side where the wiring harness goes?? While you have the modulator out, check that out in case that's where YOUR leak is located.

jb.

OK, so with these part numbers I attempted this fix. #23 was bad when I took it apart. I took my time, bled the brakes and the abs system and now the system is still leaking.

I had a difficult time getting the O ring to sit inside the groove on that piece. It was a tad larger than the hole and even with an extra set of hands, I could not get it to sit in all the way. So I lined it up and pressed down hard when putting the piece back so it would sit, but it has not.

Any ideas?

jb.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jb. &raquo;</TD></TR><TR><TD CLASS="quote">OK, so with these part numbers I attempted this fix. #23 was bad when I took it apart. I took my time, bled the brakes and the abs system and now the system is still leaking.

I had a difficult time getting the O ring to sit inside the groove on that piece. It was a tad larger than the hole and even with an extra set of hands, I could not get it to sit in all the way. So I lined it up and pressed down hard when putting the piece back so it would sit, but it has not.

Any ideas?</TD></TR></TABLE>

bump

jb.

bttt

jb.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jb. &raquo;</TD></TR><TR><TD CLASS="quote">OK, so with these part numbers I attempted this fix. #23 was bad when I took it apart. I took my time, bled the brakes and the abs system and now the system is still leaking.

I had a difficult time getting the O ring to sit inside the groove on that piece. It was a tad larger than the hole and even with an extra set of hands, I could not get it to sit in all the way. So I lined it up and pressed down hard when putting the piece back so it would sit, but it has not.

Any ideas?</TD></TR></TABLE>

danny420

# 22 & # 23 are the o-rings, i replaced my on the abs unit.

kjmoy

Did the o-ring replacement fix your problem? If it did, can you share your experience with the board. I think there are couple hex nuts needs to be torgue at certain level (i.e. x foot-pound) Thanks. My 96 ex 6cyl 's ABS comes on every now and then, the modulator would buzz longer then normal right before it lit. I would bleed the unit and fill it up. The problem would go away for a while. I believe the o-ring s may be turning bad.

jb.

I had a difficult time getting the O ring (#23) to sit inside the groove on that piece. It was a tad larger than the hole and even with an extra set of hands, I could not get it to sit in all the way. So I lined it up and pressed down hard when putting the piece back so it would sit, but it has not.

Anyone have any advice or ideas? Im going to attempt to change it again.

jb.

^bttt