Having a healthy car seems to be a vital requirement for most people, as we are all depending on our cars, regardless it is to go to your job or for personal travel. So when we identify some thing different about our Infiniti QX50, we rationally are likely to ask ourselves queries. If, in your case, it’s your engine that rattles when hot on your Infiniti QX50, you’ve come to the right place. We are aware that this is a repeated problem and so we have chose to publish a dedicated article to help you deal with it. To do this, first we will check out the problems related to hydraulic tappets and valves, then at combustion problems, and to finish at the engine rattling when hot because of trouble related to the lower engine.


Engine rattling when hot on my Infiniti QX50 because of the hydraulic tappets

If you perceive the engine hot rattles on your Infiniti QX50, and this noise is located at the top of the engine, it denotes that it comes from your cylinder head and its accompanying parts. There are two possible triggers of an hot engine rattling on a Infiniti QX50. Either the hydraulic tappets, in most cases 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 such a case, consider swapping them.

The engine of my Infiniti QX50 is doing some rattling noise when hot because of combustion problem

Second possibility, if you have the impression that the hot engine rattling is related to the combustion of your engine, there are three possible triggers of this one. It may be that your timing is out of sync and that it does not control the synchronization of the different components of the engine to promote good combustion. And to conclude, the most traditional trigger comes from your injectors, which are either clogged or damaged. Don’t forget to go to your mechanic so that he can check the part that seems to be the reason of your engine’s hot clicking on your Infiniti QX50.

Engine of my Infiniti QX50 rattling cause of problem in the lower part of the engine

To conclude, if you have outlined the area of origin of your engine that hot rattles on your Infiniti QX50 that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both situations, 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 Infiniti QX50. In any case, don’t wait when you spot such a problem, it will allow you to anticipate an upcoming big repair or at best find a more affordable remedy, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end final 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 solve other worries or learn more about your Infiniti QX50.

To find more tips on the Infiniti QX50, take a look at the Infiniti QX50 category.