coltank

I've got a '95 Integra Se, and my ABS light has been on for a while. I took it to the dealer who bled the whole system, cleanded out the lines, etc. But it only helped for a month or so. Basically when you start the car, the car will make a humming noise for awhile and you can fell vibration in the pedal before the light comes on. I thought of a leek, but figured the dealer would have found that when they flushed the system. Any ideas?
Thanks!

BSQ

The "buzzing" sound you hear when you first start your car is the ABS system pressurizing. This only pertains to '94-'97 Integras, because they have a different ABS system from the '98-'01 Integras and '97 Type-Rs. The '94-'97 Integra's ABS system has a seperate brake fluid reservior (#3 in diagram). The ABS brake fluid should be bleed and flushed periodically to remove air from the system. If you hear the buzzing for more than a couple of seconds (~2-5 sec.), this is a good indication that the ABS system needs to be bleed. Now if you hear the buzzing for ~60 seconds and then it shuts off and the ABS light comes on, it means that the ABS system could not be pressurized and the ABS has been disabled. The main cause is a small rubber O-ring (#23) which seals the brake fluid ACCUMULATOR (#2) which is under extremely high pressure. If this O-ring fails brake fluid will leak out and you will see it under the ABS module.

Here is a diagram of the '94-'97 Integra ABS module:

coltank

Thanks for your help, I'll let you know how it goes.

pdcdragon

hey bret.. i've seen you on H-T.com too, just curious, how'd u know bout this particular problem? did it happen to you? I've got the same symptoms rite now, but haven't taken it in to see what the problem is yet... i'll check that area to see if there is any brake fluid where u indicated. Thanks for the info