Brake fluid level
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4wd Low
Joined: Sep 2021
Posts: 12
Likes: 2
From: Sapulpa Oklahoma
Brake fluid level
I've been wondering lately, since I've been doing a number of brake jobs, about the distance between the high and low marks on my brake fluid reservoir. As you know, as your brake pads wear, the pads move outward to account for the wear. The fluid level in the reservoir will become lower as a result. Is the level at which the switch will illuminate the "brake light" on the dashboard at such a point that there is still brake pad left? Is it a warning to change your brake pads?
Several times during a brake job I'll push the pucks back into their bore and the reservoir will overflow. That should only happen because someone added brake fluid to "top it off". Doing so would render the "check brake light" useless.
Are there any automotive engineers or bake experts that would care to comment?
Several times during a brake job I'll push the pucks back into their bore and the reservoir will overflow. That should only happen because someone added brake fluid to "top it off". Doing so would render the "check brake light" useless.
Are there any automotive engineers or bake experts that would care to comment?
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
Doesn't always work that way. Sometimes if all 4 brakes go low at the same time it can turn the light on, but rarely. Isn't really designed that way. It's common practice to top off at brake service, or to flush the fluid as part of maintenance. If that is done anytime after brake pads are replaced, or when only one set is needed, it will over flow when the next set is done. It's really best practice to open the bleeders and allow the fluid to escape there, then to push it back through, anyway. Which would again require a top off.
Moderator
Joined: Jul 2011
Posts: 6,513
Likes: 669
From: Sioux Falls Area
That’s why I crack the bleeder when I push the piston back in.
I also flush all the old fluid every time I do pads.
Can’t overflow the master if you don’t push the old fluid back up to the top.
I also flush all the old fluid every time I do pads.
Can’t overflow the master if you don’t push the old fluid back up to the top.
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