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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Brakes, Suspension, Wheels and Tires > Brakes

Brakes Performance Brake Upgrades

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  #1  
Old 11-24-2009, 07:56 PM
Cyborg Cyborg is offline
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2005 GMC Envoy SLT
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Soft brake Pedal?

I've seen many here speak of a soft brake pedal.

Well I just want to say that I had that problem and thought it was normal. Then 3 weeks ago I flushed all my brake fluid with Prestone synthetic. That alone made a big difference. I was really surprised. A week after that I replaced my brake pads and rotors with Monroe Ceramic pads and Raybestos Advanced technology rotors. I got to say that I am very very very happy with the out come.

The point I'm trying to stress here is flush your fluid! It matters!
I'm going to start doing this every year.

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  #2  
Old 02-22-2010, 12:18 AM
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trucknorris trucknorris is offline
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2003 Chevy TrailBlazer LTZ
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soft brake pedal

Thanks Cyborg... I just completed both front and rear brakes on my '03 Trailblazer and the pedal is still really soft and travels too far in my opinion. I will try flushing the fluid and see if the result improves... Thanks again!
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  #3  
Old 02-22-2010, 12:24 PM
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Marty395 Marty395 is offline
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2004 GMC Envoy SLE
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Quote:
Originally Posted by Cyborg View Post
I've seen many here speak of a soft brake pedal.

Well I just want to say that I had that problem and thought it was normal. Then 3 weeks ago I flushed all my brake fluid with Prestone synthetic. That alone made a big difference. I was really surprised. A week after that I replaced my brake pads and rotors with Monroe Ceramic pads and Raybestos Advanced technology rotors. I got to say that I am very very very happy with the out come.

The point I'm trying to stress here is flush your fluid! It matters!
I'm going to start doing this every year.



I put some TBSS Wheels on my envoy and notice right away my pedal went soft on me, I recently got my lines flushed and refilled and , no more soft brakes!
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Old 03-06-2010, 01:11 AM
Jeremy Wade Jeremy Wade is offline
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im dumb
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  #5  
Old 03-07-2010, 06:54 PM
rubble rubble is offline
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2004 Chevy TrailBlazer LS EXT
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this is gonna sound real newbie of me. but what does "soft pedal" mean? i think i am having a problem with my brakes it gives a sound not like a squeak, but more like a spring compressing.
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Old 03-07-2010, 07:24 PM
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lynch55 lynch55 is offline
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It means your pedal goes down more than it should and it don't feel like you are going to stop. If you have air in your lines it will do this also and if you pump it a time or two the pedal will get firmer.
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Old 03-07-2010, 07:26 PM
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lynch55 lynch55 is offline
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Quote:
Originally Posted by Jeremy Wade View Post
im dumb
Don't know why you would say you are dumb, but welcome to the site from another Nashvillian!
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  #8  
Old 03-07-2010, 08:02 PM
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lint lint is offline
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I am getting a little tired of my pedal being to soft too.But the good side is no one, or my wife will drive it ,and i like that LOL.

Just wanted to know when you flushed the break lines how many bottles of Preston did it take I have 3 small bottles already ,think i need more?
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Old 03-07-2010, 11:15 PM
rubble rubble is offline
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ok then yes i guess i have a soft pedal, it gets firmer after two pumps, stil have the noise, so i guess i am gonna need to read up on how to "flush" brake lines. thanks for the info.
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Old 03-08-2010, 07:57 AM
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lint lint is offline
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Quote:
Originally Posted by rubble View Post
ok then yes i guess i have a soft pedal, it gets firmer after two pumps, stil have the noise, so i guess i am gonna need to read up on how to "flush" brake lines. thanks for the info.
That sounds like air in the lines then,You really don't have to flush the lines with air in them ,you just need to bleed the air out of the lines , .But then again that is a 2004 ,so flushing wouldn't hurt.the noise I am not sure ,some time when there is air in the lines and you are pumping the pedal you can here a springy noise that sounds like it is coming from around the pedal or from the break booster,

But bleed the lines or flush them ,if the noise is still there you can have some one check the break booster to see if that's where the noise is coming from ,,just in case it is the Diaphragm ,,,could be a small hole in it.probably not ,,,Probably just need to bleed them, and the noise could just be a squeaky pedal

If after all this and the noise is still there
Try this ,you said the breaks pump up after 2 pumps..OK turn car on ,,pump breaks 3 or 4 times till they come up as far as they will...after the forth pump hold the break down hard'''don't stand on them''' with out leaving up after the pumping,,,hold it down hard for say 10 ,,20 even 30 seconds and listen very close to see if the noise is there '''A slow steady noise'' like air is escaping. and if the break pedal is going down slowly to the floor,,if it dose ,it could be a small hole in the break booster Diaphragm..which would be under the hood on the firewall,, so someone could listen out there too while you do this,,


But it sounds like it is just air ,so don't panic about anything i wrote here...LOL
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