fuel

Fuel Cap

for 2017 Chevrolet Silverado 1500 5.3L V8 EcoTec3 L83 · RWD

Editorial review:Chris Hackleman — Master Technician · 20+ years

Difficulty

Easy

Time

6 min

Tools

Steps

✓Expert-verified. Personally reviewed and approved by OLP's master technicians (Chris Hackleman — 20+ years each). Always follow the vehicle's factory service information and torque specs.

This procedure covers the removal and replacement of the fuel filler cap on a 2014-2018 Chevrolet Silverado 1500 with 5.3L V8 engine.

Warnings

⚠Do not remove fuel cap immediately after driving, as fuel system may be pressurized and hot

ℹ️Only use a fuel cap designed for this vehicle to maintain proper fuel system pressure and emissions compliance

Tools required

Clean rag

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Parts

Fuel cap × 1 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Ensure vehicle has been off for at least 5 minutes to allow fuel system pressure to normalize
Park vehicle on level surface and engage parking brake
Locate fuel filler door on driver side rear quarter panel

Procedure

1
Open fuel filler door
Press the rear edge of the fuel filler door on the driver side rear quarter panel to release the spring-loaded door. The door will pop open for access to the fuel cap.
2
Remove old fuel cap
Turn the fuel cap counterclockwise (left) until it stops clicking and comes free from the filler neck. Pull the cap straight out from the filler neck. If the cap is tethered, note the tether attachment point.
3
Inspect filler neck seal
Examine the rubber seal inside the fuel filler neck for damage, debris, or contamination. Wipe clean with a clean rag if needed. Check for cracks or deformation that could cause seal failure.
4
Install new fuel cap
If the cap has a tether, connect it to the tether attachment point first. Align the new fuel cap with the filler neck and push it into place. Turn clockwise (right) until you hear at least 3 distinct clicks, indicating proper engagement and sealing.
5
Close fuel filler door
Push the fuel filler door closed until it latches securely. The door should sit flush with the body panel.

Reassembly

No reassembly required for this procedure

Verification

Verify fuel cap clicks at least 3 times when tightened to ensure proper seal
Confirm fuel filler door closes flush and latches properly
Start vehicle and verify no check engine light related to fuel cap (P0440, P0441, P0442, P0455, P0456 codes)
After driving, check for fuel odor around filler door area which would indicate improper seal

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