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by firefox2026
Mon Apr 05, 2021 7:12 pm
Forum: General / Main Owners Forum
Topic: Brake failure on 2015 Spark. What's the best fix?
Replies: 4
Views: 2183

Re: Brake failure on 2015 Spark. What's the best fix?

I posted my resolution of my problems on the other break post, but basically I had to replace both the controller and the modulator valve. Suppostely the controller was hosing the modulator valve causing it to fail again. It could also be that they replace it with a broken modulator originally since...
by firefox2026
Mon Apr 05, 2021 7:03 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

I keep forgetting I wanted to post an update on this. So the problem repeated itself about 6 months after I got it fixed at the dealer. I had moved to a different suburb of Denver so I ended up taking it to a different dealer. These guys knew what they were doing and got it fixed finally. I have had...
by firefox2026
Sun Sep 15, 2019 5:24 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

Well that would be a good plan if the work wasn't done in California and I live in Colorado.. :(

Also the dealership in Colorado did offer a reduce bill for the repairs, but I think GM should have done something. I will be making some noise on the internet about this if they don't.
by firefox2026
Fri Sep 13, 2019 5:50 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

I ended up deciding to call my friend who is a mechanical engineer. He says the torque depends on the size of the bolt so I have to figure out how big the bolt is if I can.
by firefox2026
Fri Sep 13, 2019 5:18 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

OK I need to enlist anyone who has had brake problems on their Spark EVs.. So they are telling me that the break pressure modulator valve (that was replaced under 2 years ago under warranty was incorrectly installed. Apparently the 4 bolts that connect the electronic brake control module to it were ...
by firefox2026
Sat Sep 07, 2019 2:09 am
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

I should add after looking at the DTC listing again I think maybe some of those were just in memory and not active. The active one is DTC code C0561- System disabled symptom code is 4B - system calibration not learned. I think the used car place said they would try to re-load the calibration data an...
by firefox2026
Sat Sep 07, 2019 1:14 am
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

Well here I am again.. I had a slightly different problem crop up with the breaks but this time it do it more randomly while you were driving. It ended up at the dealer because it had so many weird problems they couldn't figure it out. Now even the dealer can't figure it out. It sounds like there al...
by firefox2026
Wed Jan 09, 2019 10:33 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

OK so I guess they ended up having to vacuum bleed the brakes in order to get the air out of the system. So far so good no errors or anything and its working good now.

Hope it stays that way for now....
by firefox2026
Tue Jan 08, 2019 9:04 pm
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

Well the good news is the brakes were working fine as far as I could tell, but it still was triggering a abs code sometimes after you powered it up. They looked at it again and its saying that the computer was saying there was a leak from one of the front wheels. The mechanic surmised that they didn...
by firefox2026
Tue Jan 08, 2019 11:38 am
Forum: General / Main Owners Forum
Topic: Is anyone else experiencing brake issues [failure]?
Replies: 84
Views: 66444

Re: Is anyone else experiencing brake issues [failure]?

Well it seems like they say they got it fixed with the new master cylinder. Going to go over and pick it up so I keep my fingers crossed that it doesn't act up again. Was really excited about getting an EV so I hope I don't end up disappointed in the end..

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