Having a issue with your motor vehicle is common, because unfortunately recent vehicles are more and more complex and therefore at the mercy of more and more possible breakdowns. On this page we’re going to try to help you to resolve an injection problem on your GMC Yukon . This is a issue that is especially annoying because it can eventually bring your vehicle to non starting or broken engine unit. To get this done, first we will find out how injection works, then, what are the different concerns that can exist on a GMC Yukon injectors , and finally, how to resolve them.

injection-problem-gmc-yukon

What is the intent of the injection of a GMC Yukon?

So we start our content by promptly detailing how an injection system works so that you have all the info you need to discover the failures connected with it. < br>
The injection system of a GMC Yukon handles the fuel intake into the engine unit , it replaces the old carburettors. It has the benefit to be much more precise and to come, under pressure, to launch the fuel in the engine unit. The injection pump takes care of pressurizing the fuel and transferring it to the injectors, and the injectors will discharge the fuel in the form of micro-drops into the cylinders of your GMC Yukon. The benefit of fuel injection is to have a much more precise dosage than a carburettor and to enable a better air/fuel mixture and therefore a better combustion.

What are the different injection problems on GMC Yukon?

Now in this second component, we are going to explore the different injection problems and their signs of illness that you might encounter on your GMC Yukon .

Injection pump problems GMC Yukon

To start, we will find out the injection pump problems on your GMC Yukon, there are not many of them, they are generally chronic but we will detail them below:

  • Electronic issue of the high pressure pump: If you have an electronic issue, the pressure in your injection system might be too high or too low which will cause a bad air/fuel mixture and therefore a bad combustion and thus alter the performance of the engine unit of your GMC Yukon.
  • Leakage from the injection pump of your GMC Yukon: If you have a significant leakage problem, the result will be much the same as if you have a lack of pressure, you will not have enough pressure and therefore the combustion of your fuel will not be good

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Concerning the consequences and signs of illness of a fuel pump issue on a GMC Yukon , you will obviously experience, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors problems GMC Yukon

Now we move on to the injector problems on GMC Yukon . Injectors are the end of your injection system, here are the different problems you might encounter:

  • Dirty GMC Yukon injectors: This can happen because of poor fuel quality, they will let less fuel through or more if they are entirely clogged. So you will probably have one or more cylinders that are not functioning properly.
  • Leaky GMC Yukon injector: It’s generally at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector GMC Yukon HS: This is the case when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Regarding the signs of illness of injector problems on your GMC Yukon it is about the same as for a faulty injection pump. You might experience problems with starting, throttle response, power loss, and smoke emission.

How to fix an injection issue on a GMC Yukon?

To finish our content on the injection problems on GMC Yukon , we will try to give you the solutions that exist to resolve these problems.
If after a precise analysis it’s your injection pump that is the main cause of your problems, it will unfortunately be very complicated to intervene on the problem without replacing the component, this change generally goes with the replacement of the injectors, and sometimes the tank, it will take between 2000 and 3000 euros for the whole, try to get some diagnostics and estimates before starting any repair.
Concerning a issue with an injector there are various solutions depending on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your GMC Yukon, do not think twice to consult our content on this subject to get the process. If it doesn’t work, you will have to replace them.
  • Leaky injector: The change and the purchase of a joint kit will only cost you a few tens of euros, but you still need to have the ability to change it, do not think twice to consult our content on the injectors that leak on GMC Yukon, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is broken or doesn’t work anymore, generally speaking, the replacement of an injector costs around 500 euros labor included.

If you need more tutorials on the GMC Yukon, go to our GMC Yukon category.