Your FAP light is on and you do not know what caused the problem. FAP is mainly found on vehicles Diesel, even though they are now found on petrol vehicles. Before attempting repairs on your jeep grand cherokee, it is essential to know what is the source of the concern. How does a particle filter work? Why does the indicator light come on? What are the most frequent dysfunctions? In this text, we are going to give a point by point overview. 
What is an FAP on your jeep grand cherokee
As its designation presages, its role is to purify microscopic particles toxiques of the motor. These kinds of particles are so small that they can easily enter our body. It is also Peugeot who created the particle filter. The catalyst is used to lower the level of particles generated from the engine, then the FAP collects the waste. It is in fact necessary to have a FAP in good condition in case you no longer want your jeep grand cherokee to pollute the environment.
Why the FAP indicator lights up on your jeep grand cherokee
The FAP of your jeep grand cherokee is clogged
Here is the most recurring concern. No wonder, your FAP clogs the more time passes. These particles form clusters and then impede the flow of exhaust gases. As a general rule, the FAP on your jeep grand cherokee will be able to clean itself and remove this waste. Unfortunately, if it is too old it must be changed.
An electronic problem
The problem with indicator lights is that you can never be sure of the concern. Undeniably, this appears sometimes when a warning light shines while your jeep grand cherokee is turning perfectly. This FAP has several electronic probes which send the signal to the indicator. In the event that these sensors do not work well while your FAP is working perfectly, it is conceivable that the indicator light should go off.
What to do if the FAP light on your jeep grand cherokee lights up?
To begin with, it is completely forbidden to remove the particulate filter from your vehicle! It is punishable by law. You will need to examine the probes to be able to see if they are working well. If these ever work perfectly, the concern comes from the FAP. If the latter is dirty, you can clean it by driving on high speed for 10 to 15 minutes. Do not accelerate too much either, it may damage the vehicle. We advise you to go up to 3000 rpm. The engine heat should roast the stored soot and purify your DPF. If this combination does not work well, you will have to replace it.
Conclusion:
The damaged particle filter will pollute but also reduce acceleration. It is therefore important to have it changed. Leave us a comment if this file served you. Good walk !