Fuse Block: Service and Repair

2008 Chevrolet Colorado 2WD L5-3.7LSECTION Service and Repair


Underhood Electrical Center or Junction Block Replacement

Removal Procedure




1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Service and Repair) .
2. Press tabs (1) inward and lift to remove the junction block cover.
3. Remove the fuse relay center bolts (3) and remove the fuse relay center from the junction block bracket.
4. Pull downward on the wiring harness ends to remove from the bottom of the fuse relay center.

Installation Procedure




1. Align the wiring harnesses and install the fuse relay center (3).

Notice: Refer to Fastener Notice (Fastener Notice) .

2. Install the fuse relay center bolts.

Tighten the relay center bolts to 6 N.m (53 lb in).

3. Install the junction block cover (2). Press downward to engage the tabs.

RENDER: 1.0x

NO RELATED

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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.