Having a issue with your car is common, because unfortunately recent vehicles are more and more complex and therefore at the mercy of more and more possible breakdowns. In this article we’re going to try to help you to fix an injection problem on your GMC Terrain . This is a issue that is particularly frustrating because it can sooner or later bring your vehicle to non starting or damaged engine unit. To do this, first we will find out how injection works, then, what are the different concerns that can exist on a GMC Terrain injectors , and at last, how to fix them.

injection-problem-gmc-terrain

What is the goal of the injection of a GMC Terrain?

So we start our content page by quickly detailing how an injection system works so that you have all the info you need to figure out the failures connected with it. < br>
The injection system of a GMC Terrain manages the fuel intake into the engine unit , it replaces the old carburettors. It has the advantage 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 relieve the fuel in the form of micro-drops into the cylinders of your GMC Terrain. The advantage of fuel injection is to have a much more precise dosage than a carburettor and to allow a better air/fuel mixture and therefore a better combustion.

What are the different injection complications on GMC Terrain?

Now in this second component, we are going to explore the different injection complications and their symptoms that you may possibly face on your GMC Terrain .

Injection pump complications GMC Terrain

To commence, we will find out the injection pump complications on your GMC Terrain, there are not many of them, they are generally chronic but we will highlight them below:

  • Electronic issue of the high pressure pump: If you have an electronic issue, the pressure in your injection system may be too high or too low which will cause a bad air/fuel mixture and therefore a bad combustion and thus alter the behavior of the engine unit of your GMC Terrain.
  • Leakage from the injection pump of your GMC Terrain: 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

.
Concerning the consequences and symptoms of a fuel pump issue on a GMC Terrain , you will certainly experience, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors complications GMC Terrain

Now we proceed to the injector problems on GMC Terrain . Injectors are the end of your injection system, here are the different complications you may possibly encounter:

  • Dirty GMC Terrain 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 Terrain 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 Terrain HS: This is the case when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Concerning the symptoms of injector complications on your GMC Terrain it is about the same as for a defective injection pump. You may possibly encounter problems with starting, throttle response, power loss, and smoke emission.

How to get rid of an injection issue on a GMC Terrain?

To end our article content on the injection complications on GMC Terrain , we will try to give you the solutions that exist to fix these complications.
If after a precise diagnosis it’s your injection pump that is the source of your complications, it will unfortunately be very difficult to intervene on the trouble without replacing the component, this change generally goes with the replacement of the injectors, and in some cases 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 different solutions depending on your concerns, here they are:

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

If perhaps you have any additional questions about the GMC Terrain, do not hesitate to consult our GMC Terrain category.