Bleeding ABS Pump in the Snow?

[FD7683]

Hello all, I have a 2000 4Runner Limited with 270k miles and it needs a new ABS pump which I have a used one sitting in the shelf over a year from a junk 4Runner with around 155k mileage. My rig has the classic low brake pedal issue even after drums are adjusted and proper bleed. Reason i've been putting it off is because I don't know a good method to bleed the module other than getting the ABS to work in the snow and bleed after or use a proper scan tool that auto bleeds but I would like to know if the first option is a good approach to this. Thanks.

 

[phattyduck]

Reason i've been putting it off is because I don't know a good method to bleed the module other than getting the ABS to work in the snow and bleed after or use a proper scan tool that auto bleeds but I would like to know if the first option is a good approach to this. Thanks.

There is no "proper scan tool" for a 3rd gen to actuate the ABS. The factory/dealer tool connects directly to the ABS modulator, not to any in-vehicle computer. At this point, the only option is to get the ABS to actuate on a loose surface (gravel, wet, snow, etc.).

The difference on my 4Runner was drivable but uncomfortable to normal pedal with a few bleed-ABS-bleed cycles. (231 tundra fronts, new master cylinder, stainless lines F/R)

-Charlie