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Open Roads Forum  >  Tow Vehicles

 > Front brakes

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snowpeke

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Posted: 02/01/22 05:04pm Link  |  Quote  |  Print  |  Notify Moderator

I did a brake job on my 2002 2500 Dmax. The back brakes on the right rear were down to metal to metal. Put on a new rotor and pads. Now to the front. There were a lot of pad left but changed them any way. Now for a test drive the back brakes were warm but the front were cold. How can I get them to work equally?


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starlord

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Posted: 02/01/22 05:32pm Link  |  Quote  |  Print  |  Notify Moderator

The front brakes do most of the stopping. The fact that the backs were wore down and the fronts had a lot of pad left tells me they aren't working right. Could be several problems, don't know on newer models but could be master cylinder, proportioning valve... etc.

nickthehunter

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Posted: 02/01/22 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

Sounds like the caliper is sticking and not releasing properly. Time for a new one.

rhagfo

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Posted: 02/01/22 06:23pm Link  |  Quote  |  Print  |  Notify Moderator

Brake job, pads, rotors, did you replace or rebuild the calipers? I have never had a hard time rebuilding a caliper, bit have found issues, when rebuilding.


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Posted: 02/01/22 06:25pm Link  |  Quote  |  Print  |  Notify Moderator

Or, it could be the brake pressure sensor, part of the abs system. At 20 years old, it's had a tough life.

corvettekent

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Posted: 02/01/22 07:54pm Link  |  Quote  |  Print  |  Notify Moderator

On my 2007 GMC 3500HD dually at 175,000 miles one rear pad was down to metal so I replaced one rotor and all the pads. The front pads had over 50% of the original pad left. As for temperature they all feel warm.


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specta

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Posted: 02/01/22 07:58pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 2011 Chevy 2500 HD.
I was told by a friend that owns two tires stores that also do general repair.
He told me the back brakes on my truck would wear faster than the fronts.
I will be checking the rear brakes probably next week. The fronts are still at about 45-50%. And that's with 230,000 miles on the brakes.


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BurbMan

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Posted: 02/01/22 08:42pm Link  |  Quote  |  Print  |  Notify Moderator

The brakes are working as designed. The front brakes are bigger and designed to do most of the stopping when the truck is loaded. If the front brakes went to work with the box empty the truck would go sideways in an instant, especially on a wet road. The proportioning valve is set to have the rears do most of the work when the truck is unloaded to keep it in a straight line.

If you towed most of the time the fronts would wear out first, but since we're empty or lightly loaded most of the time the rears wear out first.

Regarding the rears, if one side was down to bare metal and the other rear still had meat on the pad, then you may have a dragging caliper on that side. be sure to remove and lube the caliper slide pins as part of the job. Also, be sure to put the pins back in the right spots, they are often not interchangeable top to bottom and can cause brake wear like this.

Grit dog

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Posted: 02/01/22 11:27pm Link  |  Quote  |  Print  |  Notify Moderator

snowpeke wrote:

I did a brake job on my 2002 2500 Dmax. The back brakes on the right rear were down to metal to metal. Put on a new rotor and pads. Now to the front. There were a lot of pad left but changed them any way. Now for a test drive the back brakes were warm but the front were cold. How can I get them to work equally?


Did it also feel like the front brakes weren’t working right?
If any wheels were cold either they weren’t working or you barely used the brakes.
You should also bed the brakes when they’re new.
Rears we’re probably warmer because new rotors = a lot more friction than the old smooth probably glazed front rotors and you didn’t use the brakes very hard.


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fj12ryder

Platte City, MO

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Posted: 02/02/22 07:39am Link  |  Quote  |  Print  |  Notify Moderator

Just curious, how does the proportioning valve know whether the truck is loaded or unloaded. Your explanation makes quite a bit of sense, just wondering about the proportioning valve.


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