I need to disconnect master cylinder (MC) for some brake work. After reconnection, I will bleed MC. But however careful I may be, I will eventually introduce a small volume of air into brake because the brake line is bent down at the end.

1. Will this small volume of air be trapped in ABS?
2. I read about activating ABS pump and ABS solenoid. How are they identified in a scanner, ABS PUMP, ABS SOLENOID FRONT LEFT, ABS SELENOID FRONT RIGHT, ETC?

Thank you.

 

I've been successful just bleeding them as you would a normal brake system (I don't start the vehicle). However, I do believe that the modules have bleeder screws on them. Could have sworn I saw one or two on the Expy, anyway.

 

I've heard some people say you need a scan tool, but I've never needed one.

 

Thank you, white89gt. Regarding ABS bleeding, apparently there is an ABS bleeding routine in a scanner. I thought I would have to manually select each solenoid one at a time.

I am not still sure of small volume of air in the system. Maybe it doesn't hurt braking. According to what I read, once air enters ABS, it gets trapped because of many turns and nooks. But there was no mention of small volume of air. Oh well. We are not automotive engineers. No way we know everything.

 

I think there are bleeder screws on the modulator.

 

Good to know. Thanks.