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P0442 on Chrysler Pacifica Hybrid

EVAP System Small Leak Detected - Diagnosis & Repair Guide

Factory diagnostic protocol and troubleshooting wire for fault code P0442 specifically for the Chrysler Pacifica Hybrid (2020–2026, 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)).

Verified OEM Telemetry & Field Repair Tree
Chrysler Pacifica Hybrid2020–2026
Chrysler Pacifica Hybrid
Van3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Pacifica Hybrid SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Low urgency level
Est. Repair Cost
$25 - $200 (DIY: $15)
Parts & Labor DIY
Check P0442 On Another Chrysler Model:
Diagnose P0442 on Specific Pacifica Hybrid Model Year:

1. Symptoms of P0442 on Chrysler Pacifica Hybrid

When the Engine Control Module (ECM/PCM) on your Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)) logs fault code P0442, drivers commonly observe:

Check Engine Light on on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Intermittent faint fuel odor near rear wheel well on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Failed OBD-II smog check on Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV))
Chrysler Pacifica Hybrid OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side dashboard above foot pedal assembly. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Chrysler Pacifica Hybrid

Historical warranty claims and technical repair bulletins for Chrysler Pacifica Hybrid point to the following failure distribution:

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

3. Step-by-Step DIY Repair Guide for Chrysler Pacifica Hybrid

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 Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

02
Perform EVAP Smoke Machine Test

Inject mineral oil smoke into the EVAP service port to visually pinpoint the pinhole leak. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

03
Replace Vent Solenoid Valve

If smoke escapes from the canister vent, replace the stuck solenoid. on the Chrysler Pacifica Hybrid equipped with 3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV).

Recommended Parts & Testing Tools

Equipment for Diagnosing Chrysler Pacifica Hybrid (P0442)

Prime Fast Delivery & Verified Fitment
EVAP Seal Replacement

OEM Tethered Fuel Gas Cap with O-Ring

4.7 / 5.0 (Direct Fit)

Tight-sealing factory fuel cap resolves common EVAP small/large leak codes without workshop visits.

$17 – $26 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Chrysler Pacifica HybridVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Chrysler Pacifica Hybrid

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Chrysler Pacifica Hybrid:

4. Chrysler Pacifica Hybrid P0442 FAQs

What causes code P0442 to trigger on a Chrysler Pacifica Hybrid?

On the Chrysler Pacifica Hybrid (3.6L Atkinson-Cycle V6 + Dual Electric Motors (260 HP PHEV / 32-Mile EV)), 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 Chrysler Pacifica Hybrid?

On the Chrysler Pacifica Hybrid, the 16-pin DLC diagnostic connector is located Under driver side dashboard above foot pedal assembly. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Chrysler Pacifica Hybrid 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.