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You have a problem with your 2005 Yukon Denali. There is a fuel canister leak. Here are some common causes of this problem and how to fix them. Also, check the EVAP system. If all the above are working properly, you should be able to put gas in your Yukon Denali. If you still cannot put gas in your Yukon Denali, then your fuel pump is faulty.

EVAP system

The EVAP system in your 2005 Yukon Denali is an essential component of your vehicle. It uses a vent valve to draw fresh air into the EVAP system. The vent valve solenoid may become corroded and need to be replaced. In order to repair this part, you must remove all of the hoses and electrical connectors. Next, use a specialized machine to remove the old part and replace it with the new one.

A few months ago, I noticed that my fuel pump was clicking a lot. It was doing this at slow speeds, even though I had my nozzle all the way in. After taking my vehicle to a dealer, the mechanic was unable to fix the problem, except to try to blow air through the EVAP line located on top of the tank. This was very frustrating for me. The mechanic suggested that I check the fuel level first.

A diagnostic tool like FIXD can help you diagnose the issue. The P0449 code is usually accompanied by other codes, which must be addressed before the EVAP system code is diagnosed. When a car shows two P0446 codes and P0441, then it means that the EVAP system has a faulty circuit, which causes the system to leak fuel. As a result, the service engine soon light will illuminate.

The P0449 code can also mean a malfunction in the EVAP system. For this, a good scanner is needed. If you can’t locate this code on your own, it is likely a valve problem. If it is, contact a certified repair shop that is capable of identifying the problem. The diagnostic procedure is detailed in the link below. If the P0446 code has caused you a lot of headaches, you can also visit RepairPal certified auto mechanics to diagnose it.

Fuel pump

If you’re having trouble putting gas in your 2005 Yukon Denali, you’re not alone. You’re not alone, either. One consumer had a similar experience and was forced to take their vehicle to a dealer to have it looked at. A fuel leak under the vehicle was the cause. Fuel pump wires had become exposed and melted, and the vehicle had stalled. A mechanic diagnosed the problem, and the original owner replaced the pump.

We’ve experienced similar problems, and we’re not the only ones. Our car’s fuel pump has stopped putting gas in the tank after being off for two days. This is a serious safety issue and should be investigated by the NHTSA. General Motors should investigate the issue further to ensure it is not an isolated incident. We’ve also received numerous complaints about the problem, so we’d like to hear about any solutions that have been implemented.

In our case, we’ve had the fuel pump replaced five times in three years. After the second time, the wires were burned and had to be replaced. Afterward, we called GMC and were told to take the car to a dealership for repair. The manufacturer would cover the fuel pump, but not the labor. A few days later, the problem occurred again, and the consumer had to pay for a tow.

When the fuel pump stops putting gas in your 2005 Yukon Denali, you will hear a whirring noise that may indicate a faulty pump. A bad fuel pump will also cause the engine to overheat and result in an underpowered vehicle. Moreover, the faulty fuel pump will also lead to battery drain and extra stress on the starting system. If you’re unsure of how to fix the fuel pump problem, you can read our owner’s manual for more information.

EVAP purge valve

If you are experiencing an EVAP purge valve in 2005 Yugo Denali cannot put gas in the tank, the problem is most likely the EVAP canister vent solenoid valve. Check the fuel tank vacuum using a FIXD scan tool to confirm the EVAP purge valve in the 2005 Yukon Denali cannot put gas in the tank issue. The vacuum level should not exceed 11 inches H2O. If the FTP sensor is 1.3-1.7 volts and it is set to zero, then you have a bad fuel cap. To fix the EVAP purge valve in the 2005 Yukon Denali, you will need to replace the fuel cap.

In addition to a clogged EVAP canister, you can also have a malfunctioning fuel pump. The fuel pump has sensors for safety reasons that shut off the pump if the fuel vapor level is too high. The specialists at Your Mechanic can help you diagnose the issue and fix it. If your 2005 Yukon Denali cannot put gas in the tank issue is causing a fuel leak, it is time to visit a mechanic.

Another common EVAP canister problem is rough idling. If the vehicle cannot put gas in the tank, its rpm counts are constantly fluctuating. This problem is often accompanied by an irregular speed or a shaky sensation while driving. A few symptoms of a bad EVAP canister include difficulty starting the engine, rough idling, and poor fuel economy. Additionally, your car’s check engine light could indicate a malfunctioning EVAP purge valve.

A faulty EVAP purge valve can have a negative impact on your vehicle’s gas mileage. Fuel vapors will enter the EVAP canister, which means that gas mileage will suffer. Additionally, fuel vapors can also negatively impact engine performance. If your 2005 Yukon Denali cannot put gas in the tank, the EVAP purge valve may need to be replaced.

Leaking fuel canister

If you have a leaking fuel canister in your 2005 Yukon Denali, you might have a few more things to worry about. For one, you will probably have a P0455 OBDII code. This code indicates a large leak in the evaporative emissions control system. While it’s not a major threat to the vehicle’s driveability, you’ll probably notice a faint gas odor.

If the problem is in the fuel canister, it’s likely to be related to a faulty one-way valve or a leak. In most cases, a leaking fuel canister is caused by a faulty one-way valve, which is responsible for sealing the EVAP system. You can smoke test the canister and find out if the problem is the fuel tank or the evaporative canister.

A leaking fuel canister will typically illuminate the check engine light and cause the car to make a whistling or grinding sound when it starts. It may also cause the check engine light to illuminate, and other problems such as EVAP (exhaust-vapor pressure-addition-pump) failure may indicate other issues. It’s best to visit a certified mechanic immediately if you suspect your vehicle has a leak in the fuel canister.

Another common problem involving the fuel canister is a leaky gas cap. Not only does a leaking fuel canister waste fuel, it can also lead to a deadly fire or explosion. The fuel canister must be fixed as soon as possible if you don’t want to incur a large repair bill. A top-rated mobile mechanic will come to your home or office and diagnose the problem and make recommendations as to how to fix it.

Repairing a clogged gas canister

There are many reasons why your Yukon might not start. A dead battery may be the obvious one, but you can check the contact area of the 12v battery by measuring the voltage between the battery poles. You can also check the acid level in the starter battery. The battery may have not reached its full capacity when it was purchased new, and you can’t start your vehicle without it.

Another common issue is rough idling, which can cause your vehicle to shake and cause you to run at a slower speed. If the rpm reading is not constant, you might have a fuel system issue. A clogged gas canister could be a sign of other problems, including dirty fuel injectors or faulty spark plugs. Even a small amount of gas can get inside the canister and alter the air-to-fuel ratio of the engine.

In addition to a clogged gas canister, your car’s computer is also responsible for monitoring the purge valve. If this valve is clogged, it will display an error message that you need to address. The code may be P0441 or P0446 or an EVAP code. In this case, you should take your car to a certified mechanic to fix it.


Once you have checked the air filter and the fuel gauge, it may be time to replace the charcoal canister. You can remove the charcoal canister from its bracket using a flat head screwdriver. If the canister is corroded or cracked, a ratchet and socket may be needed to get it out of the bracket. Place the canister on a flat surface. Once the charcoal canister is out of the way, you can turn on the air compressor. Make sure the air pressure is at least 50 psi.