| JayChicago | -- 02-24-2017 @ 1:33 PM |
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40 Ford, stock brake system Someone I was talking to at one of our regional meetings told me that brake system bleeding is not necessary after replacing the brake light switch. This surprised me...seems like removing the switch would introduce an air bubble. But he said he has successfully replaced brake pressure switches without bleeding, although he was talking about other types of cars. What do you-all think about this?
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| 37 Coupe | -- 02-24-2017 @ 2:34 PM |
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He told you correctly.Done it many times over last 50 years.
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| kubes40 | -- 02-24-2017 @ 2:35 PM |
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It should not require bleeding as long as you did not allow the lines to drain back. A little fluid escaping the master won't cause an air issue within it. I have replaced switches numerous times and never had the need to bleed the system.
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| woodiewagon46 | -- 02-24-2017 @ 3:46 PM |
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As crazy as it sounds, I did this repair on the road once. I used my shoelaces to keep the brake pedal from putting pressure into the master cylinder by tying it up to the steering wheel. I crawled under the car and removed the switch and quickly placed my thumb over the fitting. I installed the switch and to my surprise I continued on my way and had no problem. No spongy pedal at all.
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| JayChicago | -- 02-25-2017 @ 7:37 AM |
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Ok! Thanks for the info, guys.
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