Offroad Trailblazers and Envoys

Rust thru on frame rail

Trailblazer and Envoy related, but not off-road related...

by Feets001 » Sun Aug 02, 2015 9:58 am

I have been getting the numbers together to do a suspension rebuild, only has 157000 miles. The truck came from Ohio and has some rust. Can I just weld some plate over this break out area? Everything else looks pretty good.
Attachments
image.jpg
Feets001
Cruiser
 
Posts: 30
Joined: Sat Jun 06, 2015 5:58 am
Name: Leon
Vehicle Year: 2003
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80

by ErikSS » Sun Aug 02, 2015 1:22 pm

If I found that on my truck, I would take it to a frame shop for suggestions, and maybe even hire them. I don't feel I can see enough from the pictures to really know. That's a pretty important area of the frame. I believe that's between your sub frame and you're engine mounting area.
It's not how fast you go. It's how quick you get there. Lifted TBSS Build
User avatar
ErikSS
Lifer
 
Posts: 2044
Joined: Fri Apr 26, 2013 5:23 pm
Location: IL, Flossmoor
Name: Erik
Vehicle Year: 2008
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Limited Slip
Rank: Offroad Rated

by Cable810 » Mon Aug 03, 2015 10:23 am

That spot is right under the Strut Tower. Thought I looked familiar for a minute.
The FIRST Solid Axle Swapped Trailblazer in Presque Isle County MI
My Build
The Roadie wrote:Research, plan your mods, fund the plan, then GO DO THEM. THEN WHEEL IT.
User avatar
Cable810
Veteran
 
Posts: 1989
Joined: Thu Feb 09, 2012 6:43 pm
Location: MI, Rogers City
Name: Caleb
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Offroad Rated

by Wahugg » Mon Aug 03, 2015 11:15 am

Please report what you end up doing. I noticed my frame had the exact same issue while changing out my motor mount last weekend (Passenger side too as well if it matters).

-Wahugg
Wahugg
Addict
 
Posts: 576
Joined: Fri Oct 07, 2011 10:09 am
Name: Wahugg
Vehicle Year: Other
Vehicle: Other Vehicle
DriveTrain: AWD w/ G80

by Feets001 » Mon Aug 03, 2015 6:17 pm

Body shop guy says weld a plate. Fab. shop buddy say's get the rust neutralized, and if there's anything to weld to we will plate over it. I'll post up a photo when I get the front end on it. Guessing the plows push all the brine and salt to the right side of the road. The driver side is good.
Feets001
Cruiser
 
Posts: 30
Joined: Sat Jun 06, 2015 5:58 am
Name: Leon
Vehicle Year: 2003
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80

by Anthony Hernandez » Mon Aug 03, 2015 9:06 pm

You should clean it really well with a grinder/flapdisc/wire wheel, and run some weld into it. That's what I would do anyway. Shouldn't take an hour even.
Marks3"-moog 14's-fox shocks-z71's-4.56 gears-rear locker-
My build - viewtopic.php?f=74&t=6225
User avatar
Anthony Hernandez
Trail-Blazer
 
Posts: 399
Joined: Fri Feb 21, 2014 3:54 am
Location: Salem, VA
Name: Anthony
Vehicle Year: 2007
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker

by Karo » Tue Aug 04, 2015 1:18 pm

Grind the loose rust down an put some fluid film on it. It is only a plate welded to the frame, you can see it in the picture. I had solved that problem with soaking it in fluid film and after it has dried out putting some chassis paint on it. I have looked inside the frame with a camera and there was no rust inside. But i have soaked the whole frame with fluid film, to keep the frame rust free inside. reminds me of doing it this year again after 3 years.
User avatar
Karo
Trail-Blazer
 
Posts: 342
Joined: Fri Sep 11, 2009 3:02 am
Location: Berlin Germany 52°30'35.16"N, 13°15'31.99"E
Name: Karsten
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80
Rank: Trail Ready

by AA1PR » Tue Aug 04, 2015 10:37 pm

I learned by trial & error that chassis saver is really great to use on any rust ~ http://www.shop.monstaliner.com/Chassis ... 934-01.htm

that rust looks as if its through on the side, I'd cut all cancer out & re-weld in new material

good luck
2004 GMC Yukon, 4X4 SLT, 5.3L Vortec,
1966 Stevens M416 trailer too
"Now she is gone I got my Yukon" ExpeditionNorth.com
User avatar
AA1PR
Off-Roader
 
Posts: 185
Joined: Wed Jul 16, 2014 11:20 pm
Location: Vermont Mountains
Name: Mike
Vehicle Year: 2004
Vehicle: Other Vehicle
DriveTrain: 4WD

by Cable810 » Thu Aug 06, 2015 7:47 am

Chassis Saver is the absolute best paint for rust in the world!!!
The FIRST Solid Axle Swapped Trailblazer in Presque Isle County MI
My Build
The Roadie wrote:Research, plan your mods, fund the plan, then GO DO THEM. THEN WHEEL IT.
User avatar
Cable810
Veteran
 
Posts: 1989
Joined: Thu Feb 09, 2012 6:43 pm
Location: MI, Rogers City
Name: Caleb
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Offroad Rated

by GusMan » Wed Oct 21, 2015 2:36 pm

I have the exact issue in that same spot as well. The passenger side is actually much worse than the driver side.

Ive taken steps to grind down or scrape as much rust off as possible from both front portions of the frame rail and then spray them with RustOleum Rust Restorer. I am now in the process of top coating everything with a flat black.

Ill be monitoring the situation as well as I think I may have to weld in a plate if it gets worse.

I also plan on doing the same all down the frame rails as it seems that the factory coating (paint?) is just gone, left to surface rust.
GusMan
Newbie
 
Posts: 1
Joined: Wed Oct 21, 2015 2:31 pm
Name: Chris
Vehicle Year: 2003
Vehicle: Chevrolet Trailblazer EXT
DriveTrain: 4WD w/ Limited Slip

by crock_tb » Tue May 31, 2022 9:23 am

I realize this is an ancient post but I have the exact issue on the passenger side of my 2002 TB. Any updates? Did anyone have it plated over?
User avatar
crock_tb
Newbie
 
Posts: 2
Joined: Tue May 31, 2022 9:19 am
Location: Colorado
Name: Jon
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80

by crock_tb » Tue May 31, 2022 9:28 am

My rust. Any suggestions on next steps other than what's listed above?
Attachments
IMG_8514 Large.jpeg
Passenger side under strut tower
User avatar
crock_tb
Newbie
 
Posts: 2
Joined: Tue May 31, 2022 9:19 am
Location: Colorado
Name: Jon
Vehicle Year: 2002
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ G80

by flyboy2610 » Tue May 31, 2022 6:02 pm

I don't think Rust-O-Leum is going to be of much help here! That's going to need some new metal! A frame shop could probably cut that out and patch fairly easily.
"Never put passion before principle. Even if win, you lose." Mr. Miyagi
I don't suffer from insanity. I'm enjoying every minute of it!
User avatar
flyboy2610
Cruiser
 
Posts: 16
Joined: Sat Feb 12, 2022 2:22 pm
Location: Lincoln, Ne.
Name: John
Vehicle Year: 2004
Vehicle: Chevrolet Trailblazer EXT
DriveTrain: 4WD

by ThomasKirwan » Sun Jan 29, 2023 4:34 pm

GusMans wrote:I have the exact issue in that same spot as well. The passenger side is actually much worse than the driver side.

Ive taken steps to grind down or scrape as much rust off as possible from both front portions of the frame rail and then spray them with RustOleum Rust Restorer. I am now in the process of top coating everything with a flat black.

Ill be monitoring the situation as well as phenq where to buy I think I may have to weld in a plate if it gets worse.

I also plan on doing the same all down the frame rails as it seems that the factory coating (paint?) is just gone, left to surface rust.

The underside edges of the hood and trunk lid, as well as the door bottoms rust through. Has the car been repainted? Original rust is one thing
ThomasKirwan
Newbie
 
Posts: 1
Joined: Fri Jan 20, 2023 5:22 am
Name: Thomas
Vehicle Year: 2008
Vehicle: GMC Envoy
DriveTrain: 2WD w/ G80


Return to Truck Discussion