Having a issue with your car is basic, because regrettably recent vehicles are more and more complex and consequently exposed to more and more possible breakdowns. In this article we’re going to try to help you to solve an injection problem on your smart forfour . This is a issue that is particularly annoying because it can sooner or later bring your vehicle to non starting or damaged engine unit. To do this, first we will discover how injection works, then, what are the different problems that can exist on a smart forfour injectors , and finally, how to solve them.
What is the purpose of the injection of a smart forfour?
So we start our article 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 smart forfour controls the fuel intake into the engine unit , it replaces the old carburettors. It has the benefit to be a lot 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 smart forfour. 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 consequently a better combustion.
What are the different injection problems on smart forfour?
Now in this second part, we are going to explore the different injection problems and their symptoms that you may possibly encounter on your smart forfour .
Injection pump problems smart forfour
To begin, we will discover the injection pump problems on your smart forfour, there are not many of them, they are quite often chronic but we will highlight them down 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 bring about a bad air/fuel mixture and consequently a bad combustion and thus alter the performance of the engine unit of your smart forfour.
- Leakage from the injection pump of your smart forfour: If you have a major 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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Concerning the consequences and symptoms of a fuel pump issue on a smart forfour , you will certainly feel, a lack of power, your engine unit grazing, dark smoke emissions…
Injectors problems smart forfour
Now we move on to the injector problems on smart forfour . Injectors are the end of your injection system, here are the different problems you may possibly encounter:
- Dirty smart forfour injectors: This can happen because of poor fuel quality, they will let less fuel through or more if they are totally clogged. So you will potentially have one or more cylinders that are not functioning effectively.
- Leaky smart forfour 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 smart forfour HS: This is the case when your injectors are totally clogged or when you have an electronic problem, it will not let anything go.
Concerning the signs of illness of injector problems on your smart forfour it is about the same as for a faulty injection pump. You may possibly experience problems with starting, throttle response, power loss, and smoke emission.
How to get rid of an injection issue on a smart forfour?
To end our article on the injection problems on smart forfour , 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 source of your problems, it will regrettably be very difficult to intervene on the trouble without replacing the part, 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 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 smart forfour, do not be reluctant to seek advice from our article on this subject to get the procedure. If it doesn’t work, you will have to change 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 be able to change it, do not think twice to seek advice from our article on the injectors that leak on smart forfour, to have all the solutions available to you.
- Injector HS: Finally, last remedy, your injector is broken or doesn’t work anymore, in general, the replacement of an injector costs around 500 euros labor included.
To find more tips on the smart forfour, take a look at the smart forfour category.
