Diagnosis of P0455 code in Chrysler Town and Country

The most frequent trouble code with the Chrysler Town and Country Is the Code P0455. This code is a trouble number. It's the one you get when you insert your Town and Country in an OBDII scanner. If there's a problem, P0455 means that it is. Leakage large In the evaporative emissions control system. This code is often found with or related to P0420,P0441 and, very frequently, P0440.

Normally, P0455 does not pose a danger to the driving ability of your Town and Country. Certainly anytime the service engine soon light is on, it’s good to deal with it as soon as possible though. It often comes with the P0442. More information is available at Chrysler Town and Country OBDII Code P0442.

Chrysler Town and Country Definition P0455

The universal OBDII code P0455 can be used to diagnose trouble codes. It means that no matter what make or model vehicle you have, this code can be used to indicate the same thing: Town and Country. Technically the code is:

System Gross Leak – Evaporative Emission System

The EVAP system collects fuel vapor from your fuel tank. It then sends it to the intake of the engine to ignite the regular combustion process. When there is a large leak in the Chrysler Town and Country’s EVAP system, it will throw the P0455 OBDII Code.

Chrysler Town and Country OBDII code Symptoms

The P0455 code is usually not accompanied with any other symptoms than those listed. Smells like gas And the service engine soon light. It is possible to notice a slight dip in fuel economy.

Particular attention should be paid to the smell of fuel near the fuel tank or fuel filler tube.

The EVAP system is responsible for fuel vapors. If these vapors are leaking from the system, you’ll often smell them faintly while operating the vehicle.

Problem Codes for Town and Country: P0455

Many things can trigger the P0455 code in your Chrysler Town and Country. These are some of the more common issues that can trigger the P0455 code.

• Hose for Evap System– The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak. This can lead to the P0455 code. You should look for a hole or a tear in the code. This is usually the cause of code.
• Vapor Canister Purge Valve– One of the most common causes of the P0455 code is the vapor canister purge valve. It’s really easy to replace. You will need to locate and take out a few clips.
• A Faulty Canister of Charcoal– The charcoal canister is often the cause of P0455.
• Fuel Tank Sending Unit– It is possible for the gasket that attaches the fuel sending unit to the gas tank to go bad. This could cause a drop in tank pressure which can throw off the code.
• Fuel Cap– A bad fuel cap can cause the code to be thrown for sure. Often, you’ll get a message informing you that the fuel cap is off even when it is on. You may not get the message but a P0455. This will save you time and money.
• Fuel Filler Neck– There is often a gasket where the fuel filler neck connects with the gas tank. The gasket may dry out especially if the vehicle is in dry conditions. When it dries out, the fuel tank can’t hold pressure anymore.

P0455 Diagnoses- Chrysler Town and Country

The mechanic will have a lot of different tools at his disposal in order to determine the cause of your Chrysler Town and Country's P0455. These are some of the common diagnostics that can be done for the code

• The mechanic will check to make sure there are no other codes. It is easier to diagnose problems if there are more codes. That’s because when they appear together in certain combinations, there will often only be only a few conditions that will throw any combination of codes at one time.
• Once the mechanic has determined the trouble codes associated with P0455, he or she will usually Take a look at the EVAP system. These include the line and purge valve.
• To ensure that the cap can withstand pressure, the mechanic will check it. If you are getting a warning that your gas cap is off, even when it’s on, replacing it will more than likely clear this code.
• Monitor and check the pressure in your fuel tank.
• The mechanic will then perform the following tests after completing the above-mentioned checks:
• A smoke test, and they’ll use a scan tool to confirm that the EVAP solenoids and valves are operating properly.

Here’s a pretty good video on diagnosing these leaks from Scotty Kilmer, if you are interested:

While the trouble code may state that there is a “large leak” in the EVAP system of your Chrysler Town and Country, the actual leak will most likely still look rather small. The “large” really is referring to how much pressure is being lost.

The Most Popular P0455 Fixes

These are some of the most popular Town and Country P0455 fix:

• Replacing the gas cap
• Replacing EVAP lines
• Replace charcoal canister
• Replacing the fuel tank

It is best to begin with the gas cap, and then work your way up to the fuel tanks. The gas cap is the most difficult and cost-effective item to replace.

Here’s a great video on How to check the gas cap.

You will need to find the cause of your Chrysler Town and Country throwing the P0455 code. This should help. Please feel free to add anything below.

Are P0455 Serious Concerns?

While P0455 is not going to cause the Town and Country’s engine to stop running, it should not be treated lightly. Fuel leaks could be a problem. You should pay extra attention to the level of your fuel tank and ensure that you're not leaking fuel. It is best to have it checked and/or dealt with immediately.