Guest gvttr Posted July 1, 2009 Share Posted July 1, 2009 Hello, I have a 1990 with 84000 miles Affter the red and yellow brake lights remained on, I noticed fluid around and inside the electrical harness the serves the Brake pressure switch. I have not added fluid and the outside of the switch is dry. Fluid seems to be coming thru the switch. What's my next move? Thanks,Greg in Cinci OH Link to comment Share on other sites More sharing options...
Ronnie Posted July 1, 2009 Share Posted July 1, 2009 Replace the switch. Link to comment Share on other sites More sharing options...
Rawja Posted July 1, 2009 Share Posted July 1, 2009 It's worth mentioning that replacing the switch is very easy.GM Part # 25533700 Usually cheapest through GM Parts Direct: Your direct source for Genuine GM PartsMight be a good time to take the brake tests located at Reatta Data Page as well as there might be some other items that need attention. Link to comment Share on other sites More sharing options...
Jim Posted July 1, 2009 Share Posted July 1, 2009 I have several Reatta parts cars and have a good tested ABS pressure switch available.I can be reached at jfinn@cpinternet.com Link to comment Share on other sites More sharing options...
Guest gvttr Posted July 1, 2009 Share Posted July 1, 2009 I have replaced the switch. Same thing happens. Should the fluid be escaping from the pump area. Shouldn't it stay behind the small daiphram where the switch and the pump meet. Link to comment Share on other sites More sharing options...
juddev Posted July 3, 2009 Share Posted July 3, 2009 Cheaper switch Amazon.com: 25533700: Automotive5Price: $99.65 & this item ships for FREE with Super Saver Shipping. Link to comment Share on other sites More sharing options...
Rawja Posted July 3, 2009 Share Posted July 3, 2009 Cool Juddev. I didn't know it could be gotten cheaper.Weird new forum feature: "GM Parts Direct: Your direct source for Genuine GM Parts" I totally didn't type that in my post, just the web address.gvttr: if there is fluid inside the electrical connector of the switch, regardless of the age of the switch the only way it could get inside there is through the switch being faulty. If you're sure that the leak isn't coming from the hoses/tubing you're probably looking at replacing the pump assembly. You need to take a close look. Link to comment Share on other sites More sharing options...
Barney Eaton Posted July 4, 2009 Share Posted July 4, 2009 There is a "O" ring on the pressure switch that could be faulty or missing Link to comment Share on other sites More sharing options...
ESTAVER Posted November 20, 2009 Share Posted November 20, 2009 You may find that the bore the cartridge seats in has pitting in the o-ring contact area. I replaced mine with a Quad Ring o-ring that has two contact points instead of one. It still has a real slow weep but far better than the old.The ring is Buna-N material...I don't know the size as I just grabbed a selection at work and used the one with the best fit. Link to comment Share on other sites More sharing options...
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