What can be more distressing than noises when you start your car… Indeed, you plausibly previously discovered noises when you start your Lexus GX and generally it’s frustrating. It could not be anything severe, 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 made the decision to compose this content to support you find its origin. To do this, first, we will see the case of noise when starting on Lexus GX but the car does not start, and finally, the noise you can encounter on your car if it starts, first cold and then hot.
I experience a noise when I try to start my Lexus GX, but the engine doesn’t start
I perceive a clicking noise at the start of my Lexus GX
If you experience 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. Indeed, if you listen clicking noise when you start your Lexus GX, and it sounds like a ticking, you almost certainly lack the energy to run your starter, test your battery with a voltmeter and swap it if necessary. In the event that after verifying your battery, you still encounter a noise when starting your Lexus GX and it does not want to start, refer to this article about starter motor noises on Lexus GX for more details and to locate the source of your problem.
I hear a noise when I start my Lexus GX but the engine it starts
I experience a noise when I start my Lexus GX
- Grinding or squealing type noises when I start cold Lexus GX :
If you experience a noise when you start your Lexus GX, and this noise looks like grinding or squealing noise, which can also be relating to vibrations, it is plausible that it is the combustion of your car that is involved. Indeed if you have an air/fuel mixture that is not good the normal running of the engine will be altered. Verify the condition of your injectors and air intake system. For more details on the origin of injection-related noises on Lexus GX, see this article content. - Cold start friction parts Lexus GX :
If you know cold friction noises on Lexus GX, it is almost certain 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 provoke a friction noise, often when cold. Visually verify your belt and swap it if necessary. If you have other friction noises, and it doesn’t originate from your serpentine belt, we have a full article on engine of your Lexus GX.
I experience a noise when starting my Lexus GX even when hot
- rubber mount / silent bloc dead motor
If you experience a clacking noise just as 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 changed. And the huge vibrations produced by starting the engine can produce starting noise on Lexus GX. Verify their condition and replace them if necessary. Browse this article if you would like to have detailed details on rubber mount noises on Lexus GX. - Motor flywheel
Finally, if you notice a noise that sounds a little like a crank noise when you start your Lexus GX, even when hot, it is plausible that if your series is equipped with a dual-mass flywheel, it is the source of your problems. Indeed, these parts have created a lot of problems on many vehicles. When they take part in the game they generate noise when you start your Lexus GX and when you turn off the engine. Have his condition inspected by a mecanist.
