Brake pressure switch leaking
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Post Fiend
Joined: May 2006
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From: Central Florida
Brake pressure switch leaking
I finally got time to swap out the brake pressure switch because the cruise control has been deactivated for a while. I got the switched unplugged and brake fluid started dripping out. I checked the fuse and it was saturated with fluid. How is that better than when the switch itself gets wet? The fluid will still bridge the contacts. In any case, Ed got me a switch and I'm good again.
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Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
I had the fuse harness put in under the recall a couple weeks after they included the superduty. I was disappointed at the time because it seemed like a band aid rather than a fix. I can't see the fuse helping the situation, the switch was cheap enough I wish they had done it right the first time.
Are these new switches "leak proof"?
Are these new switches "leak proof"?
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Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
That's why I used the quotes. Even submarines leak.
My thought though is what is the difference between brake fluid saturating the connector and shorting out vs brake fluid saturating both the fuse holder and the connector and shorting? A short is a short, next to the M/C or in the middle of the harness, correct?
My thought though is what is the difference between brake fluid saturating the connector and shorting out vs brake fluid saturating both the fuse holder and the connector and shorting? A short is a short, next to the M/C or in the middle of the harness, correct?
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I finally got time to swap out the brake pressure switch because the cruise control has been deactivated for a while. I got the switched unplugged and brake fluid started dripping out. I checked the fuse and it was saturated with fluid. How is that better than when the switch itself gets wet? The fluid will still bridge the contacts. In any case, Ed got me a switch and I'm good again.
Question, ...was it a big hassle to bleed the system after replacing the switch??? Thanks.
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Post Fiend
Joined: May 2006
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From: Central Florida
I went under the theory of if the fluid could flow out freely, then air could not climb back up. So I pulled the cap on the MC and then unscrewed the sensor and put the new one in as quickly as possible. The idea is if atmosphere can push down on the reservoir then air will have no need in traveling up the MC.
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Joined: Apr 2009
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I went under the theory of if the fluid could flow out freely, then air could not climb back up. So I pulled the cap on the MC and then unscrewed the sensor and put the new one in as quickly as possible. The idea is if atmosphere can push down on the reservoir then air will have no need in traveling up the MC.
...Is there any thread sealant required on the new switch to prevent leaking? Did you use anything?
Thanks.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
I changed the sensor out in '07 because it was leaking. The dealer said it was not on recall at the time. I paid 27.00 for the sensor and pigtail. Has not leaked again and I didn't put anything on the threads.
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Post Fiend
Joined: May 2006
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Likes: 4
From: Central Florida
My switch was pre-lock-tite'd, it had some kind of hard red sealer already applied. It's a two pole plug and uses power, so it shouldn't need a ground. Not needing a ground, a thread sealer shouldn't effect it's operation.
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