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2005 chevy trailblazer_lt_ext
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6 Posts
Discussion Starter · #1 ·
I've had my 2005 Trailblazer Ext. for 14 months. It currently has 72,000 miles on it. All four wheels have disc brakes. A week or so ago, I noticed a noise in the passenger side rear wheel. It only happens when backing up. It sounds like a high pitched whine or squeal.
Is that indication of brake wear? Is that normal for rear brakes to wear out before the front ones?
Or could this be an indication of a problem with the 4 wheel drive? or wheel bearing? or antilock brakes?

Also, I know how to change disc brake pads, I've done front wheels on many different cars over the years, but never rear ones. Is there any thing I need to know that's different on the rear, such as e-brake, antilock, etc?

I'm a DIYer, so any information that will help is greatly appreciated!
 

· Registered
2005 chevy trailblazer_lt_ext
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6 Posts
Discussion Starter · #2 ·
I changed the rear brake pads today. Easiest brakes I have ever done!
The pads were pretty bad, but the rotors looked good.
Noise is gone.
Hopefully that was the problem.
 

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2004 gmc
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26,436 Posts
I would have guessed something broken in the ebrake system in the rotor hub, because I haven't seen the pads have a directionality when they start making noise, but I certainly haven't seen it all yet. Yes, they are simple. I was camping so I didn't post up whtn you needed the hint, but when you pushed the pistons back, I hope you were bleeding the fluid out instead of pushing it back upstream past the ABS valves and so forth.
 
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