HARD Brake! - TerrainForum.net: GMC Terrain Forum
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post #1 of 8 (permalink) Old 05-22-2020, 02:32 PM Thread Starter
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Question HARD Brake!

I had this exact problem one year ago, took my car to the dealer (who had NO IDEA what this was, for $2,500!), yet changed both computer systems on my '10 Equinox. This problem has arisen once or twice shortly thereafter the "repair" and just presented itself more or less a year-to-date.

With no warning, upon starting cold or after a stop, the brake becomes HARD and won't release--therefore the vehicle won't move. When it does release ('if' it releases), the vehicle will stutter for a bit as if its not getting gas, then it disappears. 'If' this symtom locks in from a cold start or stop, the car will not move. You're stuck wherever you are! In the case moments ago, it didn't quite lock up when pulling away from a Stop sign.

ANY advice regarding this mystery fix would be greatly appreciated! I will add that when this originally happened one year ago, I got a Check Engine warning light on my dashboard, which has yet to to present itself again.
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post #2 of 8 (permalink) Old 05-22-2020, 07:01 PM
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Very likely that brake lines in front need to be replaced and maybe calipers too The hoses are collapsed. Fluid goes to the calipers and can't get back so they stay locked. Happened to vues all the time...all the theta bodies had the same system.
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post #3 of 8 (permalink) Old 05-22-2020, 07:33 PM
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Here's some info. http://www.saturnfans.com/forums/sho...d.php?t=236572

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post #4 of 8 (permalink) Old 05-22-2020, 07:43 PM
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And some more. http://www.saturnfans.com/forums/sho...d.php?t=234133

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post #5 of 8 (permalink) Old 05-22-2020, 10:21 PM Thread Starter
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John, your 3-replies may make the single most sense of anything I have heard to-date. The dealer had at one point said it "maybe the master cylinders have gone bad," but instead gouged me for $2,500 and overhauled my electrical system instead. Regardless, I like your hypothesis and appreciate the reply and archived responses (Vue). Much appreciated! Thank you!
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post #6 of 8 (permalink) Old 05-23-2020, 08:51 AM
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Best of luck...hope it's helpful. Be sure to post back if you straighten it out so we maybe can help someone else in the same position. The exact same thing happened to my vue so when I read your post it was a very familiar story.
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post #7 of 8 (permalink) Old 05-23-2020, 02:20 PM
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I do not see what year your car is. If it is older, then front or any brake hoses are suspect. It is very common after many years of use for them to come apart inside while looking great outside. When they do come apart pieces get stuck inside and the very low pressure on the return of the calipers can not get the fluid back again. I have seen this failure on many vehicles over the years. I suspect the front more than the rears but I have seen failures on both. Hoses are cheap to replace especially if you do the work yourself and it is a good opportunity to flush the brake fluid at the same time since you will be bleeding the system after hose replacement. I would do one wheel at a time and then bleed that one before going to the next.



This is just a thought and not a guaranteed fix.
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Last edited by n9cv; 05-23-2020 at 02:39 PM.
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post #8 of 8 (permalink) Old Yesterday, 08:25 AM
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Quote:
Originally Posted by n9cv View Post
I do not see what year your car is..

2010 Equinox.


Lee

Iowa
2018 Equinox 2.0 Premier AWD
Made in Canada


2008 Malibu LTZ
3.6 and 6 speed


Past: 2008 Equinox Sport AWD
3.6 and 6 speed
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