When there is a large leak in the Jeep Cherokee’s EVAP system, it will throw the P0455 OBDII Code. The EVAP system prevents harmful gases from escaping into the atmosphere and does not affect how the engine runs, which means this code is not a breakdown risk. Your Cherokee’s EVAP system (Evaporative Emission Control System) helps reduce emissions from your vehicle by collecting fuel vapors from the gas tank and sending them back into the engine for combustion. Evaporative Emissions System Purge valves come in many shapes and sizes Repair steps will vary depending on the model year and engine. P0455 is a generic diagnostic trouble code, meaning it has the same definition for your Jeep Cherokee as any other vehicle.
P0455 Definition: System Gross Leak – Evaporative Emission System But, whenever the check engine light is on, it’s good to deal with the code as soon as possible.Ĭheck that your Cherokee’s gas cap is present and sealing well. P0455 usually is not an immediate threat to the driveability of your Cherokee. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 in the Jeep Cherokee is a trouble code that indicates your truck has a LARGE evaporative emissions leak.
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