P0455 on Dodge Charger: Symptoms, Causes & DIY Fix
Official technical diagnostic wire for fault code P0455 (P0455: Evaporative Emission Control System Leak Detected (Gross Leak)) specifically affecting Dodge Charger vehicles equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
1. Symptoms of P0455 on Dodge Charger
When the Engine Control Module (ECM/PCM) on your Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo) logs fault code P0455, drivers commonly observe:
2. Most Likely Causes on Dodge Charger
Historical warranty claims and technical repair bulletins for Dodge Charger point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Dodge Charger
Remove gas cap, inspect rubber O-ring for cracks, tighten until it clicks 3 times. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
If the cap rubber is dried or cracked, replace with genuine OEM cap ($15). on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
Disconnect electrical plug and vacuum hose. Apply 12V; verify valve seals tight when unpowered. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
Check vent valve for road salt corrosion or spider nest clogs. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
Pump mineral oil smoke into EVAP port to reveal any hairline cracked lines. on the Dodge Charger equipped with 5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo.
4. Dodge Charger P0455 FAQs
What causes code P0455 to trigger on a Dodge Charger?
On the Dodge Charger (5.7L / 6.4L 392 HEMI / 6.2L Hellcat (717HP–797HP) / Hurricane 3.0L Turbo), P0455 is most frequently caused by Missing, loose, or cracked gas cap seal or Faulty EVAP purge control solenoid. Factory sensor degradation or wiring harness wear near the engine bay are common factors.
Can I safely drive my Dodge Charger with code P0455?
Yes. Completely safe to drive, but emissions test will fail. Given that P0455 carries a Low severity rating on Dodge vehicles, we advise performing diagnostic scanning via the OBD-II port located driver lower dash assembly next to hood lever before extended highway driving.
Where is the diagnostic port located on the Dodge Charger?
The 16-pin OBD-II DLC connector on the Dodge Charger is situated driver lower dash assembly next to hood lever. It requires no special tools to plug in a standard scanner.
How much does it cost to fix P0455 on a Dodge Charger?
DIY replacement parts typically range between $15 - $250 (DIY: $15 - $50). If serviced at an authorized Dodge dealership, expect an additional $120–$250 in professional labor based on their $120/hr hourly rate.