Having a healthy car appears to be an essential requirement for the majority of us, as we are all depending on our vehicles, regardless it is to get for you to work or for personal travel. So when we locate some thing different about our Peugeot 407, we logically usually tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your Peugeot 407, you’ve come to the good website. We are aware that this is a repeating issue and so we have decide to publish a dedicated article to help you deal with it. To do so, first we will look into the problems relevant to hydraulic tappets and valves, then at combustion problems, and at last at the engine rattling when hot because of trouble relevant to the lower engine.


Engine rattling when hot on my Peugeot 407 because of the hydraulic tappets

If you notice the engine hot rattles on your Peugeot 407, and this noise is established at the top of the engine, it means that it comes from your cylinder head and its accompanying elements. There are two possible motives of an hot engine rattling on a Peugeot 407. Either the hydraulic tappets, generally it is because of their faulty “hydraulic catch-up” system that you will hear these clicking noises, often when hot and not when cold. Otherwise, it is the play of your rocker arms or their state of wear that is at fault. In this case, consider swapping them.

The engine of my Peugeot 407 is doing some rattling noise when hot because of combustion problem

Second possibility, if you have the feeling that the hot engine rattling is relevant to the combustion of your engine, there are three possible motives of this one. It may be that your timing is out of sync and that it does not control the synchronization of the different elements of the engine to create good combustion. And to conclude, the most common trigger comes from your injectors, which are either clogged or damaged. Don’t hesitate to go to your auto mechanic so that he can inspect the part that seems to be at the origin of your engine’s hot clicking on your Peugeot 407.

Engine of my Peugeot 407 rattling cause of problem in the lower part of the engine

Finally, if you have determined the place of origin of your engine that hot rattles on your Peugeot 407 that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both cases, the risk in the long run is engine breakage. These two repairs are particularly complex and most mechanics will advise you to replace the engine of your Peugeot 407. In any case, don’t wait when you identify such a issue, it will let you to anticipate an upcoming big repair or at best find a less costly option, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end result being your engine giving out on you when you come home from work. Don’t hesitate to take a look at our catalogue of items on your car that can help you fix other problems or learn more about your Peugeot 407.

If perhaps you have any additional questions about the Peugeot 407, do not hesitate to consult our Peugeot 407 category.