What can be more distressing than noises when you start your car… In fact, you plausibly already listened to noises when you start your Lexus IS and generally speaking it’s frustrating. It could not be anything serious, but each new engine starts usually turns into a scary moment during which you don’t know if your engine will start. That is why our team has decided to create this content to support you find its source. To do this, first, we will see the case of noise when starting on Lexus IS but the car does not start, and finally, the noise you can experience on your car if it starts, first cold and then hot.
I listen a noise when I try to start my Lexus IS, but the engine doesn’t start
I pay attention to a clicking noise at the start of my Lexus IS
If you listen a noise when you want to start your car, and it does not want to turn on, it is likely that it is the battery that is causing the problem. In fact, if you experience clicking noise when you start your Lexus IS, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test your battery with a voltmeter and change it if required. In case that after verifying your battery, you still encounter a noise when starting your Lexus IS and it does not want to start, refer to this article about starter motor noises on Lexus IS for more info and to find the source of your problem.
I experience a noise when I start my Lexus IS but the engine it starts
I listen a noise when I start my Lexus IS
- Grinding or squealing type noises when I start cold Lexus IS :
If you listen a noise when you start your Lexus IS, and this noise is like grinding or squealing noise, which can also be linked to vibrations, it is plausible that it is the combustion of your car that is involved. In fact if you have an air/fuel mixture that is not good the normal general performance of the engine will be altered. Check the condition of your injectors and air intake system. For more info on the source of injection-related noises on Lexus IS, consult this content. - Cold start friction parts Lexus IS :
If you discern cold friction noises on Lexus IS, it is almost sure that they come from one of your belts. Either the serpentine belt starts to wear out and therefore causes a friction noise. It is also plausible that the tensioner roller or damper pulley is worn out and that as a result the extension belt make a friction noise, often when cold. Visually verify your belt and change it if required. If you have other friction noises, and it doesn’t result from your serpentine belt, we have a full article on engine of your Lexus IS.
I listen a noise when starting my Lexus IS even when hot
- rubber mount / silent bloc dead motor
If you listen a clacking noise when you start your car’s engine and it is more than 100,000 km long, it is plausible that some of your engine silentblocks or rubber mounts are good to be swapped. And the huge vibrations produced by starting the engine can generate starting noise on Lexus IS. Check their condition and swap them if required. Read this article if you would like to have detailed info on rubber mount noises on Lexus IS. - Motor flywheel
Finally, if you hear a noise that sounds a little like a crank noise when you start your Lexus IS, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the source of your problems. In fact, these parts have created a lot of problems on many vehicles. When they take part in the game they produce noise when you start your Lexus IS and when you turn off the engine. Have his condition inspected by a mecanist.
