SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1433 (FRAME & UNDERBODY)REPAIR INSTRUCTIONSFRAME SECTIONING - FRONT FULL FRAMEREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Front Frame Service Section
GM1335267Courtesy of GENERAL MOTORS CORP.

The re-designed frame assembly for the new S/T Utility is a mild, steel hydroformed frame assembly. A front frame service section consisting of the left and right frame ends, body, and radiator support mounting brackets and front connecting cross tube is available. If damage permits, locate and cut off the front 420 mm (161/2 in) portion of the frame using the die-mark indicators as a guide. The front and rear body mounts, radiator support mounts, steering gear and transmission cross-member can be ordered and replaced separately.

    Fig 2: View Of Front Frame Rail Section
    GM1334889Courtesy of GENERAL MOTORS CORP.
  1. Remove all of the related panels and components including the front bumper assembly.
    2. Fig 3: Identifying Front Frame Rail Die-Marks
    GM1334929Courtesy of GENERAL MOTORS CORP.
  2. Locate the 2 die-marks on each frame. The die marks are located 420 mm (161/2 in) rearward from each front frame rail end on the top and bottom side of each rail.
    3. Fig 4: Applying Masking Tape Over Die-Marks & Down Each Frame Rail
    GM1334933Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.