Having a healthy car appears to be an important requirement for many people, as we are all dependent on our automobiles, whether it is to get to work or for personal reasons. So when we identify something different about our Lexus GS, we logically are likely to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your Lexus GS, you’ve come to the right place. We are aware that this is a repeating trouble and so we have chose to write a specialized document to enable you deal with it. To do this, first we will check out the complications in connection with hydraulic tappets and valves, then at combustion complications, and to conclude at the engine rattling when hot because of problems in connection with the lower engine.


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

If you perceive the engine hot rattles on your Lexus GS, and this noise is located at the top of the engine, it involves that it comes from your cylinder head and its accompanying parts. There are two possible causes of an hot engine rattling on a Lexus GS. 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. In any other case, it is the play of your rocker arms or their state of wear that is to blame. In this case, reflect on swapping them.

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

Second option, if you have the impression that the hot engine rattling is in connection with the combustion of your engine, there are three possible causes 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 create good combustion. And to conclude, the most traditional motive comes from your injectors, which are either clogged or damaged. Don’t forget to go to your auto mechanic so that he can examine the component that seems to be the reason of your engine’s hot clicking on your Lexus GS.

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

To conclude, if you have outlined the place of origin of your engine that hot rattles on your Lexus GS 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 Lexus GS. In any case, don’t wait when you identify such a trouble, it will allow you to foresee an upcoming expense or at best find a more affordable solution, 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 have a look at our catalogue of items on your car that can enable you fix other problems or learn more about your Lexus GS.

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