Lexus LS Common Problems and Solutions
Rattling noise/loose steering wheel
If you can hear a rattling noise coming from the steering wheel and it feels a bit loose, there is a known issue with a part called the 'worm gear', which is located behind the steering wheel.
Replacing the 'worm gear' will sort the issue.
Hesitation/lack of power
There is a known issue with the MAF (Mass Air Flow) sensor becoming clogged and also with the oxygen sensors failing. If any of these parts fail, it can cause hesitancy and a lack of power when accelerating. On the fourth generation LS there has been a known issue with a transmission software failure, which can cause these sort of problems.
You should run a diagnostic check, so as to correctly identify exactly what is causing the problem. If it is the MAF sensor, this can be fixed by removing the part and cleaning it with some MAF sensor cleaner. If it is the oxygen sensor, then this will need to be replaced. If it is the transmission software failure, you will need a software update, to rectify the issue.
Have you been having any difficulties starting your LS? If so, the starter solenoid is prone to failure on this car. Is the problem in the video below anything like yours?
Fitting a replacement starter solenoid will sort the problem.
Can you hear a knocking noise coming from the suspension? Is it most noticeable when driving over speed bumps, or poorly surfaced roads? If so, this could either be caused by a fault with the tie rod, wishbone bushes or ball joint.
You will need to identify exactly which of the above suspension parts is causing the fault and you will need to fit a replacement one, in order to resolve the issue. We can help you to find your replacement suspension parts, at very low prices.