Having a problem with your car is basic, because unfortunately recent automobiles are more and more complex and therefore be subject to more and more possible breakdowns. On this page we’re going to try to help you to solve an injection problem on your Buick LaCrosse . This is a problem that is specially bothersome because it can eventually bring your vehicle to non starting or damaged engine. To do this, first we will find out how injection works, then, what are the different concerns that can exist on a Buick LaCrosse injectors , and at last, how to solve them.

injection-problem-buick-lacrosse

What is the aim of the injection of a Buick LaCrosse?

So we begin our content by promptly explaining how an injection system works so that you have all the information you need to figure out the failures associated with it. < br>
The injection system of a Buick LaCrosse controls the fuel intake into the engine , it replaces the old carburettors. It has the benefit to be a lot more precise and to come, under pressure, to discharge the fuel in the engine. 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 Buick LaCrosse. 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 Buick LaCrosse?

Now in this second part, we are going to discover the different injection problems and their signs of illness that you might come across on your Buick LaCrosse .

Injection pump problems Buick LaCrosse

To start, we will find out the injection pump problems on your Buick LaCrosse, there are not many of them, they are generally persistent but we will outline them below:

  • Electronic problem of the high pressure pump: If you have an electronic problem, 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 of your Buick LaCrosse.
  • Leakage from the injection pump of your Buick LaCrosse: If you have a major 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 signs of illness of a fuel pump problem on a Buick LaCrosse , you will most certainly experience, a lack of power, your engine grazing, dark smoke emissions…

Injectors problems Buick LaCrosse

Now we proceed to the injector problems on Buick LaCrosse . Injectors represent the end of your injection system, here are the different problems you might encounter:

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

Concerning the signs of illness of injector problems on your Buick LaCrosse it is about the same as for a faulty injection pump. You might encounter problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection problem on a Buick LaCrosse?

To finish our article on the injection problems on Buick LaCrosse , we will try to give you the solutions that exist to solve these problems.
If after a precise diagnosis it’s your injection pump that is the reason of your problems, it will unfortunately be very complicated to intervene on the issue without replacing the part, 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 problem with an injector there are different solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Buick LaCrosse, do not think twice to consult our content on this subject to get the process. If it doesn’t work, you will have to change 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 have the ability to replace it, do not hesitate to consult our content on the injectors that leak on Buick LaCrosse, 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.

To find more tips on the Buick LaCrosse, take a look at the Buick LaCrosse category.