Having a healthy car appears to be an essential requirement for a lot of people, as we are all dependent upon our vehicles, it doesn’t matter if it is to go to your job or for personal reasons. So when we observe something different about our GMC Sierra, we logically usually tend to ask ourselves questions. If, in your case, it’s your engine that rattles when hot on your GMC Sierra, you’ve come to the good website. We understand that this is a recurring trouble and so we have decide to publish a specialized content to enable you deal with it. To do this, first we will look into the trouble relevant to hydraulic tappets and valves, then at combustion trouble, and at last at the engine rattling when hot because of trouble relevant to the lower engine.
Engine rattling when hot on my GMC Sierra because of the hydraulic tappets
If you hear the engine hot rattles on your GMC Sierra, 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 triggers of an hot engine rattling on a GMC Sierra. 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. Otherwise, it is the play of your rocker arms or their state of wear that is responsible. In this case, reflect on replacing them.
The engine of my GMC Sierra is doing some rattling noise when hot because of combustion problem
Second possibility, if you have the impression that the hot engine rattling is relevant 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 manage the synchronization of the different elements of the engine to supply good combustion. And to finish, the most classic reason comes from your injectors, which are either clogged or damaged. Don’t hesitate to go to your mechanic so that he can inspect the part that seems to be at the origin of your engine’s hot clicking on your GMC Sierra.
Engine of my GMC Sierra rattling cause of problem in the lower part of the engine
At last, if you have identified the place of origin of your engine that hot rattles on your GMC Sierra that comes from your lower engine, it may be that your connecting rods or piston pins are the origin. In both circumstances, 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 GMC Sierra. In any case, don’t wait when you spot such a trouble, it will allow you to foresee an upcoming expense or at best find a less expensive option, rather than find yourself faced with a failure with the origin of your engine rattling when hot and the end end result being your engine giving out on you when you come home from work. Don’t hesitate to look at our catalogue of items on your car that can enable you resolve other concerns or learn more about your GMC Sierra.
To find more tips on the GMC Sierra, take a look at the GMC Sierra category.
