P0455 on RAM 1500 TRX: Fix & DLC Location
Factory diagnostic troubleshooting wire for fault code P0455 (P0455: Evaporative Emission Control System Leak Detected (Gross Leak)) specifically on the RAM 1500 TRX (2021–2024, 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)).
1. Symptoms of P0455 on RAM 1500 TRX
When the Engine Control Module (ECM/PCM) on your RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)) logs fault code P0455, drivers commonly observe:
2. Most Likely Causes on RAM 1500 TRX
Historical warranty claims and technical repair bulletins for RAM 1500 TRX point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for RAM 1500 TRX
Remove gas cap, inspect rubber O-ring for cracks, tighten until it clicks 3 times. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).
If the cap rubber is dried or cracked, replace with genuine OEM cap ($15). on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).
Disconnect electrical plug and vacuum hose. Apply 12V; verify valve seals tight when unpowered. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).
Check vent valve for road salt corrosion or spider nest clogs. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).
Pump mineral oil smoke into EVAP port to reveal any hairline cracked lines. on the RAM 1500 TRX equipped with 6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2).
Other Common Fault Codes on RAM 1500 TRX
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the RAM 1500 TRX:
4. RAM 1500 TRX P0455 FAQs
What causes code P0455 to trigger on a RAM 1500 TRX?
On the RAM 1500 TRX (6.2L Supercharged HEMI V8 (702HP / 650 lb-ft / Bilstein Black Hawk e2)), P0455 is most frequently caused by Missing, loose, or cracked gas cap seal or Faulty EVAP purge control solenoid.
Where is the OBD-II port located on my RAM 1500 TRX?
On the RAM 1500 TRX, the 16-pin DLC diagnostic connector is located Driver lower dash assembly next to hood release lever. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my RAM 1500 TRX with code P0455?
Yes. Completely safe to drive, but emissions test will fail. Given that P0455 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.