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SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Just bought it, doing brakes and a few other things to make it road-worthy
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SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby SunDogAZ [OP] » Apr 15 2020, 5:01am

387899

387901

387903

A week ago I bought a 2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4 with 154k miles.

The body and interior are in great shape. The engine runs really well, the transmission shifts smoothly, most everything seems to be solid on this truck. According the carfax, it was a snow-country truck for most of it's life (New York), and has a fair bit of rust on the under carriage, but I don't think it is terrible.

The brake system, however needs work. These are the braking system issues I've started with:

- the brakes are very mushy (prob air in the lines / ABS module) and I knew at the time of buying the truck
- the ABS and Brake lights stay on on the instrument cluster (are not intermittent)
- I did find a severed Speed / ABS sensor line at the front left
- I haven't had time to check the health of all of the rotors, calipers, pads, drums and shoes yet. Been a busy week.

As of this post I have thus far:

- replaced the severed sensor line with a new OEM line from chevy dealership parts dept ($52 including tax)
- ordered a set of "new" OEM rotors, calipers, pads, and h/w for the fronts from a member from another forum
- ordered a good bi-directional scan tool which is due to arrive in 2 days
- I have tried a scan tool from the auto parts store and have run some tests, but the ABS test fails saying it cannot communicate

I am beginning to wonder if I have ABS pump issues. I hope not, because I've read they are very pricey to have replaced, although, and if it came down to replacing it, I'd prob do the swap out myself after sourcing a working replacement unit.

But, before I get that far, I need to flush the lines, bleed the ABS pump, then bleed the system. I will wait until the front set of brake parts arrives, and I am prob also going to order replacement drums and shoes for the rear.

I started this topic a few days ago:

Starting brake job on 05 Sierra

In that topic, I have since posted a ton of questions, pics, vids, and several members have left great responses with in depth descriptions and suggestions. Many thanks to the forum and its members. I would encourage anyone with brake issues to read thru that topic. Also, as I state at the very beginning of that topic, be sure to read the Brakes 101 pinned topic as that is where I began and learned tons before creating my own topic.
Last edited by SunDogAZ on Apr 15 2020, 5:47am, edited 1 time in total.
2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4
Build >> SunDogAZ's 2005 GMC Sierra Z71 Crew Cab
[gallery]https://www.silveradosierra.com/gallery/image.php?image_id=387899[/gallery]
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby nealinator » Apr 15 2020, 5:30am

Glad you started this thread. Much more appropriate for focus on your truck and as it evolves. Even repairs and maintenance. I enjoyed following the other thread as well.
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Nealinator's 5.3L 4x4 Z71 All Terrain   183,265 miles
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Borla Exhaust - Eonon GA7180 - Custom Catch Can - Bilstein 5100's - $ Cost $ - DiabLew Tune
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby SunDogAZ [OP] » Apr 15 2020, 5:45am

nealinator wrote:Glad you started this thread. Much more appropriate for focus on your truck and as it evolves. Even repairs and maintenance. I enjoyed following the other thread as well.


Thanks nealinator. A moderator suggested it. Just curious, does it work like the normal topics, meaning you can post a reply, and edit that last reply until someone else posts a reply.

Or, can you edit any of your posts regardless of how many replies follow it? I am asking, because if the latter, I can sort of create subtopics, if that makes sense?
2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4
Build >> SunDogAZ's 2005 GMC Sierra Z71 Crew Cab
[gallery]https://www.silveradosierra.com/gallery/image.php?image_id=387899[/gallery]
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Year: 2005
Make/Model: GMC Sierra
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Extra Info: 1500 5.3L 4x4 Z71
Group Membership:
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby ricka182 » Apr 15 2020, 12:41pm

I answered your questions in your PM, but to summarize..

You can edit your posts for one hour after you post, then it is locked for editing. This applied to any post you make, not just in your build thread.
Moderators can edit any post, at any time. So if you need something changed, we can do that. But we don't fix simple typos or grammar, etc..

Looking forward to seeing you get that truck running nice and smooth again..
2006 Silverado 1500
Atomic Coilover Conversion - Viking Warrior/PAC Springs
RCX 6" lift
Cognito UCAs
American Outlaw Bandit wheels - 17x9/-10
BFG A/T KO2 - 285/70/17
Corsa DB Catback
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby nealinator » Apr 15 2020, 1:42pm

I know you have a number of mechanical items you are working on right now. But I am curious if you have some cosmetic items planned. Any changes or fix ups in the near future?
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Nealinator's 5.3L 4x4 Z71 All Terrain   183,265 miles
AMP Power Steps - Retrax Pro Cover - Terra Grappler G2 - Airaid MIT - Mobil 1
Borla Exhaust - Eonon GA7180 - Custom Catch Can - Bilstein 5100's - $ Cost $ - DiabLew Tune
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Variant: All Terrain
Extra Info: 1500 5.3L 4x4 Z71
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby jmoore19 » Apr 15 2020, 2:52pm

Excited to watch this build. I ran into the same issues of brakes on my 02 like this. If you need a couple tips that will help identify some issues, feel free to PM me. I know of a couple remedies that are free and can help out.
Current build thread: jmoore19's 02 Silverado 1500HD Build

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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby Chevrolado » Apr 15 2020, 4:09pm

Ooh cool, another fellow GMT800 build. :) Lookin forward to seeing this develop as you fix the issues and get it back running great.
Great platform to start from - truck seems like a good one! :D
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Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby SunDogAZ [OP] » Apr 17 2020, 2:07am

Shipment has been delayed for the Foxwell NT630 Plus bi-directional scanner that was supposed to arrive today.

Tracking says:

"Your package has been delayed due to events beyond our control. We're adjusting delivery plans as quickly as possible." :roll:

But the Foxwell FW601 ELM327 WiFi OBD2 Code Reader that I also bought is still on schedule for tomorrow. :)
2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4
Build >> SunDogAZ's 2005 GMC Sierra Z71 Crew Cab
[gallery]https://www.silveradosierra.com/gallery/image.php?image_id=387899[/gallery]
Original Poster
User avatar
SunDogAZ
Combustion on 1 piston [L2]
Combustion on 1 piston [L2]
Posts: 158
Topics: 9
Images: 3
Joined: Apr 09 2020, 2:37am
Location: the valley of the sun
Year: 2005
Make/Model: GMC Sierra
Variant: SLE
Extra Info: 1500 5.3L 4x4 Z71
Group Membership:
Registered users

Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby SunDogAZ [OP] » Apr 17 2020, 5:14am

New front rotors, calipers, brackets, and pads should ship out on Saturday.

Image

Image

Image

Image
2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4
Build >> SunDogAZ's 2005 GMC Sierra Z71 Crew Cab
[gallery]https://www.silveradosierra.com/gallery/image.php?image_id=387899[/gallery]
Original Poster
User avatar
SunDogAZ
Combustion on 1 piston [L2]
Combustion on 1 piston [L2]
Posts: 158
Topics: 9
Images: 3
Joined: Apr 09 2020, 2:37am
Location: the valley of the sun
Year: 2005
Make/Model: GMC Sierra
Variant: SLE
Extra Info: 1500 5.3L 4x4 Z71
Group Membership:
Registered users

Re: SunDogAZ's 2005 GMC Sierra Z71 Crew Cab

Postby SunDogAZ [OP] » Apr 17 2020, 5:58am

Been looking around for some new wheels. I like OEM GMC / Chevy aluminum truck wheels. But, I found this, only one for sale. I think these are cool, anyone know where to find a set of 4 similar for a fair price?

Image

Or these:

Image

Or these:

Image
2005 GMC Sierra 1500 SLE Crew Cab - 5.3L Vortec V8 - Z71 4x4
Build >> SunDogAZ's 2005 GMC Sierra Z71 Crew Cab
[gallery]https://www.silveradosierra.com/gallery/image.php?image_id=387899[/gallery]
Original Poster
User avatar
SunDogAZ
Combustion on 1 piston [L2]
Combustion on 1 piston [L2]
Posts: 158
Topics: 9
Images: 3
Joined: Apr 09 2020, 2:37am
Location: the valley of the sun
Year: 2005
Make/Model: GMC Sierra
Variant: SLE
Extra Info: 1500 5.3L 4x4 Z71
Group Membership:
Registered users
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