2003-2007 Chevrolet Silverado Battery Replacement

Replacing a dead battery on a Chevrolet...

iFixit Library 1999-2007 Chevrolet Silverado Moderate 10 - 35 minutes Guide 212104

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Guide overview

Before you begin

Replacing a dead battery on a Chevrolet Silverado 1500 is a straightforward repair that most owners can do with a few tools. A failing battery can cause symptoms such as slow engine cranking, dim lights, or the truck not starting at all, making replacement necessary to keep the vehicle reliable. This guide was performed on a 2003 Silverado LT with a 5.3L V8 engine. Before you begin this repair, ensure the car is off and in park. If you have driven the car recently, ensure it has cooled off before you work under the hood.

Step 1

Repair step

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Pull the hood release latch to the left of the parking brake on the driver's side.
Reach into the opening at the front of the truck and feel around until you locate the latch positioned near the center. Once you’ve found it, slide the latch to the right to release the hood, then lift the hood upward to open it.

Step 2

Repair step

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Use a 10mm socket and a ratchet to loosen and remove the two bolts securing the battery brace to the truck’s body.
Lift off the brace and place it aside.

Step 3

Repair step

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Use a socket wrench with a 6-inch (or longer) extension to loosen the 13 mm bolt securing the battery hold-down block, located at the back of the battery compartment.
Remove both the bolt and the hold-down block.

Step 4

Repair step

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Disconnect the black negative cable first (and reconnect it last) to reduce the risk of creating a short to ground.
Loosen the 7 mm bolt on the black negative terminal just enough to lift the connector off and remove the cable.
Loosen the 7 mm bolt on the red positive terminal until the connector can be lifted off.
Move the cables aside and secure it out of the way.

Step 5

Repair step

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Hold the battery firmly with both hands and slowly remove it from its compartment. Remember, batteries can be quite heavyso take care to lift it safely.