Having a issue with your motor vehicle is traditional, because sadly recent automobiles are more and more complex and consequently exposed to more and more possible breakdowns. On this page we’re going to try to help you to fix an injection problem on your Mercury Mariner . This is a issue that is specially frustrating because it can ultimately bring your car to non starting or damaged engine unit. To get this done, first we will discover how injection works, then, what are the different concerns that can exist on a Mercury Mariner injectors , and at last, how to fix them.

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What is the intent of the injection of a Mercury Mariner?

So we commence our article by promptly detailing 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 Mercury Mariner 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 discharge 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 Mercury Mariner. The advantage of fuel injection is to have a much more precise dosage than a carburettor and to enable a better air/fuel mixture and consequently a better combustion.

What are the different injection problems on Mercury Mariner?

Now in this second component, we are going to explore the different injection problems and their manifestations that you may encounter on your Mercury Mariner .

Injection pump problems Mercury Mariner

To start, we will discover the injection pump problems on your Mercury Mariner, there are not many of them, they are quite often persistent but we will outline 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 bring about a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine unit of your Mercury Mariner.
  • Leakage from the injection pump of your Mercury Mariner: If you have a significant leakage problem, the end result will be much the same as if you have a lack of pressure, you will not have enough pressure and consequently the combustion of your fuel will not be good

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Regarding the consequences and manifestations of a fuel pump issue on a Mercury Mariner , you will undoubtedly experience, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors problems Mercury Mariner

Now we proceed to the injector problems on Mercury Mariner . Injectors represent the end of your injection system, here are the different problems you may encounter:

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

Regarding the symptoms of injector problems on your Mercury Mariner it is about the same as for a defective injection pump. You may encounter problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection issue on a Mercury Mariner?

To conclude our content on the injection problems on Mercury Mariner , we will try to give you the solutions that exist to fix these problems.
If after a precise investigation it’s your injection pump that is the source of your problems, it will sadly be very difficult to intervene on the trouble without replacing the component, this change quite often 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 several diagnostics and estimates before starting any repair.
Regarding a issue with an injector there are different solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Mercury Mariner, do not hesitate to consult our article on this subject to get the procedure. 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 hesitate to consult our article on the injectors that leak on Mercury Mariner, 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 you wish more tutorials on the Mercury Mariner, go to our Mercury Mariner category.