FTC Reader Disclosure: When you purchase or register through links on our site, we may earn an affiliate commission at no extra cost to you. Read our Editorial & Advertising Policy.

P0442 on Dodge Durango: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0442 (EVAP System Small Leak Detected - Diagnosis & Repair Guide) specifically on the Dodge Durango (2021–2026, 3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)).

2021–2026
DurangoSUV
Sensor Voltage Ref
0.1V – 5.0V Ref
Durango 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 Dodge Model:

1. Symptoms of P0442 on Dodge Durango

When the Engine Control Module (ECM/PCM) on your Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)) logs fault code P0442, drivers commonly observe:

Check Engine Light on on Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP))
Intermittent faint fuel odor near rear wheel well on Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP))
Failed OBD-II smog check on Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP))
Dodge Durango OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower dash panel near fuse box. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Dodge Durango

Historical warranty claims and technical repair bulletins for Dodge Durango point to the following failure distribution:

55%
Worn or cracked gas cap rubber seal (Dodge OEM Part)
25%
Small split in charcoal canister vapor line (Dodge OEM Part)
12%
Leaking EVAP vent valve solenoid (Dodge OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Dodge Durango.

3. Step-by-Step DIY Repair Guide for Dodge Durango

01
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 Dodge Durango equipped with 3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP).

02
Perform EVAP Smoke Machine Test

Inject mineral oil smoke into the EVAP service port to visually pinpoint the pinhole leak. on the Dodge Durango equipped with 3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP).

03
Replace Vent Solenoid Valve

If smoke escapes from the canister vent, replace the stuck solenoid. on the Dodge Durango equipped with 3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP).

Other Common Fault Codes on Dodge Durango

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Dodge Durango:

4. Dodge Durango P0442 FAQs

What causes code P0442 to trigger on a Dodge Durango?

On the Dodge Durango (3.6L Pentastar V6 (293HP) / 5.7L HEMI V8 (360HP) / 6.4L 392 SRT (475HP)), 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 Dodge Durango?

On the Dodge Durango, the 16-pin DLC diagnostic connector is located Driver lower dash panel near fuse box. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Dodge Durango 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.