Having a healthy car seems to be an essential requirement for most of us, as we are all dependent upon our cars, whether it is to go for you to work or for personal travel. So when we discover something different about our Lexus NX, we logically usually tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your Lexus NX, you’ve come to the right place. We know that this is a repeating issue and so we have decide to publish a dedicated article to help you deal with it. To accomplish this, first we will look at the problems associated with hydraulic tappets and valves, then at combustion problems, and to finish at the engine rattling when hot because of concerns associated with the lower engine.

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Engine rattling when hot on my Lexus NX because of the hydraulic tappets

If you perceive the engine hot rattles on your Lexus NX, and this noise is located at the top of the engine, it denotes that it comes from your cylinder head and its accompanying elements. There are two possible motives of an hot engine rattling on a Lexus NX. Either the hydraulic tappets, in general it is because of their faulty “hydraulic catch-up” system that you will hear these clicking noises, often when hot and not when cold. In any other case, it is the play of your rocker arms or their state of wear that is to blame. In this instance, reflect on swapping them.

The engine of my Lexus NX is doing some rattling noise when hot because of combustion problem

Second possibility, if you have the impression that the hot engine rattling is associated with 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 manage the synchronization of the different components of the engine to supply good combustion. And to conclude, the most classic motive comes from your injectors, which are either clogged or damaged. Don’t hesitate to go to your auto technician so that he can look at the component that seems to be at the origin of your engine’s hot clicking on your Lexus NX.

Engine of my Lexus NX rattling cause of problem in the lower part of the engine

To finish, if you have identified the area of origin of your engine that hot rattles on your Lexus NX 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 Lexus NX. In any case, don’t wait when you detect such a issue, it will enable you to prepare for an upcoming expense or at best find a less expensive remedy, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end result being your engine breaking down 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 remedy other worries or learn more about your Lexus NX.

If you want more tutorials on the Lexus NX, go to our Lexus NX category.