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P0442

Ford Bronco Hub All Ford P0442Low Severity

P0442 on Ford Bronco: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0442 (EVAP System Small Leak Detected - Diagnosis & Repair Guide) specifically on the Ford Bronco (2021–2026, 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)).

2021–2026

BroncoSUV

Sensor Voltage Ref

0.1V – 5.0V Ref

Bronco SAE Mode $01

ECU Network Bus

500 kbps CAN-FD

ISO 15765-4 Compliant

Drivability Status

Drivable (Short Trip)

Low urgency level

Est. DIY Time

45 – 90 Min

Basic hand tools

Check P0442 On Another Ford Model:

Ford F-150 Ford F-250 Super Duty Ford Explorer Ford Mustang Ford Bronco Ford Ranger Ford Maverick

1. Symptoms of P0442 on Ford Bronco

When the Engine Control Module (ECM/PCM) on your Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)) logs fault code P0442, drivers commonly observe:

Check Engine Light on on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Intermittent faint fuel odor near rear wheel well on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Failed OBD-II smog check on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Ford Bronco OBD-II Port Location

The 16-pin diagnostic connector is located Beneath steering wheel lower shroud. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Ford Bronco

Historical warranty claims and technical repair bulletins for Ford Bronco point to the following failure distribution:

55%

Worn or cracked gas cap rubber seal (Ford OEM Part)

25%

Small split in charcoal canister vapor line (Ford OEM Part)

12%

Leaking EVAP vent valve solenoid (Ford OEM Part)

3. Step-by-Step DIY Repair Guide for Ford Bronco

Clean or Replace Gas Cap O-Ring

Inspect the gas cap gasket for micro-cracks or debris. Replace with OEM cap if hardened. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Perform EVAP Smoke Machine Test

Inject mineral oil smoke into the EVAP service port to visually pinpoint the pinhole leak. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Replace Vent Solenoid Valve

If smoke escapes from the canister vent, replace the stuck solenoid. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Other Common Fault Codes on Ford Bronco

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Ford Bronco:

P0300Automotive

P0300: Random or Multiple Cylinder Misfi...

View Bronco Fix

P0420Automotive

P0420: Catalyst System Efficiency Below ...

View Bronco Fix

P0171Automotive

P0171: System Too Lean (Bank 1)...

View Bronco Fix

P0128Automotive

P0128: Coolant Temperature Below Thermos...

View Bronco Fix

P0455Automotive

P0455: Evaporative Emission Control Syst...

View Bronco Fix

P0101Automotive

Mass Air Flow (MAF) Sensor Circuit Range...

View Bronco Fix

4. Ford Bronco P0442 FAQs

What causes code P0442 to trigger on a Ford Bronco?

On the Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)), P0442 is most frequently caused by Worn or cracked gas cap rubber seal or Small split in charcoal canister vapor line.

Where is the OBD-II port located on my Ford Bronco?

On the Ford Bronco, the 16-pin DLC diagnostic connector is located Beneath steering wheel lower shroud. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Ford Bronco with code P0442?

Safe to drive. Will not damage engine internals. Given that P0442 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.