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Discussing Potential Knock Sensor Issues in 2020 Lexus LC Hybrid

Weird engine noise

Check engine light on

Jerking on acceleration

Poor fuel economy

Loss of engine power

Hey, my 2020 Lexus LC Hybrid has been acting pretty weird lately. The check engine light is on, it’s struggling with power, jerking during acceleration, drinking fuel fast, and makes a strange noise from the engine. I suspect it might be a problem with the knock sensor, but would love to hear your ideas and your experiences fixing this kind of problem. Did your mechanics manage to solve it? Could you share your workshop experiences on this issue? Appreciate your help!

4 comment(s)


LukasFedererFan

Hey there, I had a quite similar issue with my 2018 Lexus LS hybrid a while back. I'd describe my car knowledge as low to some experience, so I'm not an expert but know a thing or two. Took it to my local garage and after a deep dive, they figured out it was indeed a faulty cable/plug. Cost me around 95 Euro to get it all sorted, not much of a pocket-burner thankfully. Do you know if your Lexus has any diagnostic codes thrown up? Might help me give more precise advice. Cheers!

Hotwheels (Author)

Hey! Thanks for sharing your experience, really appreciate it. I didn't check the error codes yet, but I'll surely do that and let you know. By the way, so far my LC Hybrid has clocked 100258 KM, and the last service was done just a few months back. So, I'm hoping it's an issue with the sensor or the plug. Anyway, will get the codes checked and come back to you. Cheers!

LukasFedererFan

Hey! No worries glad to help! Yeah, seeing as the last service was only a few months back, it really could be a sensor or wire problem, as you mentioned. A faulty knock sensor or a troublesome wire could definitely be causing issues like these. When you get those diagnostic codes, don't hesitate to throw them up here. I'm by no means an expert, but I can tell you what worked for my LS hybrid. Worst case, you could always take it to the workshop if things get a bit complicated. Keep us updated, and hopefully, you'll get that Lexus purring smoothly again in no time! Best of luck with it.

Hotwheels (Author)

Hey, cheers for all your help! Will surely get those diagnostic codes and let ya know. And yes, you're absolutely right - if things get too tricky, to the workshop it is! Really hoping it's just a minor sensor or wire issue. Will surely keep you updated, fingers crossed! Thanks again for all your support, appreciate it big time!

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