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Brake MC Pressure switch replacement

If I replace the 2 pressure switches on the Brake MC, will it require bleeding the brakes after?

Old 03-01-2017, 01:42 PM
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Old 03-01-2017, 01:54 PM
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negative.

The back one is kind of a pain to get off. Deep socket is too deep, shallow socket is too shallow. If memory serves, an offset box wrench is your friend here.
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Old 03-01-2017, 02:22 PM
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I had an assistant hold his foot lightly on the brake pedal when I removed each switch. Had a paper towel under the switch and only got a drop or two of fluid out of the master cylinder by the time I was able to thread the new one in. Didn't require bleeding the brakes in my instance, your experience may vary!
Old 03-01-2017, 08:58 PM
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+3, no need but to be safe, press the brake 2" in, held by a 2x4 or a helper. get towels ready.

Brake a Leg
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Old 03-01-2017, 09:30 PM
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It is usually not necessary as mentioned in the posts above.

The actual removal and replacement is the tricky part. I presume you have read through the threads on doing the replacement. The offset box end wrench was the key to me getting it done.
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Old 03-02-2017, 06:01 AM
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This is a good opportunity to switch to a mechanical brake switch actuated off the brake lever.

Those pressure switches take more brake pedal pressure than I was comfortable with, as the brake lights often don't come on in stop and go traffic where you just barely touch the brake pedal.

HTH,
Chuck.H
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Old 03-03-2017, 05:15 AM
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Tis more than likely your system could use a bleed. Do it.
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Old 03-03-2017, 06:33 AM
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+1 on Chuck H's comment.

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Old 03-03-2017, 07:43 AM
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