Brakes keep sticking on - Pontiac G6 Forum
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post #1 of 18 (permalink) Old 12-13-2009, 08:16 AM Thread Starter
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Brakes keep sticking on

I just bought a 2005 G6 with 98,000km on it and the last few weeks the brakes keep sticking on.My wife came home and there was smoke coming from the front brakes.Then we are on the highway a week later and they lock up,car starts vibrating and shacking like i blew a tire.I get out and nope all is good,lug nuts are good,tire pressure.So i call my brother a mechanic and he says to pump the brake pedal hard.So i did 5-6 times and then drove away and it was good.Ten minutes later they lock up again and i cant get over 15km/hr.He thinks the sensor is coming out of adjustment maybe?also sometimes the command start wont work and it seems like it sences that the brake is on..so maybe it needs adjustment on that sensor.Im going to check the brake lights to see if they are working right after reading the issues on here and wonder what kinda car i bought...

Last edited by 2strokejunkie; 12-13-2009 at 08:18 AM.
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post #2 of 18 (permalink) Old 12-13-2009, 10:34 PM
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Sadly, I think you should take it in... Though I think you're out of warranty. Do you have extended?

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post #3 of 18 (permalink) Old 12-14-2009, 06:12 AM Thread Starter
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Nope no warranty but my brother is a mechanic so we are gona look at it.I think im gona replace all rotors and pads and maybe even calipers...Is there a brand that anyone recommends to replace with....thxs
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post #4 of 18 (permalink) Old 12-14-2009, 06:29 AM
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Rotors are warped. Replace them. Surprised they lasted as long as they did.

I replaced mine with R1 Concepts & Akebono ceramic pads at 45,000 miles.

Im currently at 103,000 miles and they are still working like a champ.

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post #5 of 18 (permalink) Old 12-15-2009, 09:05 PM
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Quote:
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Rotors are warped. Replace them. Surprised they lasted as long as they did.

I replaced mine with R1 Concepts & Akebono ceramic pads at 45,000 miles.

Im currently at 103,000 miles and they are still working like a champ.
If they are sticking then they are SEVERELY warped! Mine are right now and I just ordered Cquence Rotors and ceramic pads. Should have them tomorrow!

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post #6 of 18 (permalink) Old 12-16-2009, 04:22 AM
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Lots of Complaints on the other board about clicking with those.....let us know how they work out.

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post #7 of 18 (permalink) Old 12-21-2009, 11:13 PM
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Yeah, I will def let you know! Military Snail Mail... I should have them tomorrow... HOPEFULLY!

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post #8 of 18 (permalink) Old 12-25-2009, 09:47 PM Thread Starter
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Well my fluid level was 1/2" higher than it should be and the front rotors are scored and flaky...so im doin rotors around and hope its good to go...
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post #9 of 18 (permalink) Old 12-26-2009, 08:00 PM
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Just read your thread. First thing to look at when brakes seem to be sticking, is to lift the lid on the brake fluid reservoir. The rubber on the back of the lid should be nice and firm. If it is, that's great. But if it is droopy, then some one has added a petroleum product such as power steering fliud. That would cause all rubber in the brake system to swell, blocking off the flex hoses and holding the brakes on. This doesn't happen very often, but when it does, all parts with rubber in them will need to be replaced. That would be master cylinder, ABS components, rubber flex hoses at the wheel, calipers, etc. I hope this is not your case! Some times sticking brakes can be the 'sliders' seized at the calipers. Good Luck.
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post #10 of 18 (permalink) Old 12-26-2009, 08:11 PM
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Anti-lock or Traction problem?

Stoopid double-post.

Last edited by MattInSoCal; 12-26-2009 at 08:15 PM.
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post #11 of 18 (permalink) Old 12-26-2009, 08:14 PM
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Anti-lock or Traction control problem?

Are the brakes sticking only after you apply them, or do they also seem to come on by themselves? Do they seem to be stuck harder than you thought you may have appplied them? Besides the possibility of the pistons sticking in the caliper, it could also be a malfunction in the Anti-Lock Braking or Traction Control modules.

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post #12 of 18 (permalink) Old 12-29-2009, 11:05 AM
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Quote:
Originally Posted by MattInSoCal View Post
Are the brakes sticking only after you apply them, or do they also seem to come on by themselves? Do they seem to be stuck harder than you thought you may have appplied them? Besides the possibility of the pistons sticking in the caliper, it could also be a malfunction in the Anti-Lock Braking or Traction Control modules.

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OT but where in SoCal are you?

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post #13 of 18 (permalink) Old 12-29-2009, 12:04 PM
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Quote:
Originally Posted by 2strokejunkie View Post
Well my fluid level was 1/2" higher than it should be and the front rotors are scored and flaky...so im doin rotors around and hope its good to go...
That's bad!

Sound like the pads were wore all the way down. I would suggest buying the R1 concept rotors as Lampoon suggested.

DO NOT buy autozone, o'riely or advanced auto parts break pads. Go to Napa, GM or a reputable race break pad.

Also be sure to lube the guides on the caliper with a good high temp break lube. otherwise you will have same problem with breaks sticking later on as the calipers will not be able to slide properly.
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post #14 of 18 (permalink) Old 12-29-2009, 12:06 PM
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Where in the world?

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OT but where in SoCal are you?
Lake Forest in south Orange County, though I'm sitting in the GF's living room in Escondido at the moment. I waved hi as I drove through Oceanside last night, did you see me?

Returning back to the topic at hand, it's not likely to be the pads and rotors as the cause of the sticking, though due to the lockups they may need machining and/or replacing. If the problem is because the pistons are hanging up in the calipers then you might want to think about replacing them, and possibly having the brake fluid flushed. The pistons would hang up either due to a bad seal in the caliper (possibly from someone not properly retracting the piston on a previous brake job) or sediment.

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post #15 of 18 (permalink) Old 01-09-2010, 10:50 AM
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Well?

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Originally Posted by 2strokejunkie View Post
Well my fluid level was 1/2" higher than it should be and the front rotors are scored and flaky...so im doin rotors around and hope its good to go...
So......

Is it fixed yet? Did you find the actual problem? All us armchair quarterbacks want to know!

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