Latest cars are increasingly pre-loaded with new technologies, apart from the comfort of use it can bring, technology as well has the advantage of saving fuel or reducing the pollution emitted by our cars. This is precisely the subject matter of our article of the day, we are going to look at the problems of the lambda sensor on Ford Expedition , this sensor as well known as oxygen sensor plays an necessary role. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor problems on Ford Expedition and how to fix them.
What is a lambda purpose on Ford Expedition?
So we start our content page with the benefit of a lambda sensor on Ford Expedition , we will first see what is the function of this probe and then how it functions.
Role of a lambda sensor on Ford Expedition
First produced by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission specifications. Also called oxygen sensor on Ford Expedition , its task is to regulate the amount of oxygen in the exhaust gases, this will allow the engine to modify the air/fuel mixture to reduce the pollution emitted by the motor vehicle and reduce the car’s fuel consumption.
Lambda sensor procedure on Ford Expedition
Before explaining you the different problems of lambda probe on Ford Expedition , we will look a little more in outline at its functioning to allow you to figure out exactly how it functions and thus to consider more serenely the correction of a problem related to it.
As we told you, a lambda probe has the job of managing the amount of oxygen present in the exhaust gases . One could naively presume that this data is determined upstream of the combustion but it is on the contrary measured at the engine outlet . With the EURO 1 standard there was only one lambda sensor needed before the catalyst, but with the arrival of more drastic specifications there are now 2 lambda sensors, one before and one after the catalyst . The benefit is to have more exact data by compiling the two probes. These data are sent to the ECU which will modify the quantity of air and gasoline inserted into the engine to improve the combustion .
Lambda sensor problem on Ford Expedition
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At last, we are now going to attack the section you are undoubtedly most keen on this content page, how to handle it if you have a lambda sensor problem on Ford Expedition . In a first step we will see how to identify a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on Ford Expedition is HS
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It is necessary to know that a lambda sensor has generally a lifetime of 150 000 km , this statistics can vary according to the year of your Ford Expedition, your driving, and the good working of your engine. A poorly looked after engine that releases unburned gases may permanently corrupt your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Ford Expedition might be the engine light turns on, if you want to turn off the engine light of your Ford Expedition, do not think twice to visit our dedicated content page to see the process to follow. The only effective technique to make sure that you have a lambda sensor problem on your Ford Expedition and to complete your car to the diagnostic case, for that do not think twice to seek advice from our guide which explains you Ford Expeditionhow to read the fault code of a Ford Expedition. Please note that if you have problems with one of your lambda sensors, the only solution to solve them will be to change the faulty sensor.
How to change a lambda sensor on Ford Expedition?
And finally, we are going to focus on the correction of lambda sensor problems on Ford Expedition , by describing how to replace a lambda sensor.
The replacement of a lambda sensor is quite simple to accomplish and you will have the ability to do it yourself with a minimum of tools and mechanical expertise. A lambda sensor is worth between 25 and 50€ , it is better to change the 2 lambda sensors present upstream and downstream of your catalytic converter because if one of them is faulty the second one risks to drop you quickly. To replace it, it will be necessary to put your Ford Expedition on candles and at the level of your catalyst unscrew your probes, disconnect them, reconnect them and screw the new ones . Once re-connected, you should not have any more problems with your lambda sensor on Ford Expedition.
If you need more tutorials on the Ford Expedition, go to our Ford Expedition category.
