josephwalter1
Lexus RC Wastegate Defect
Summary of the thread
A 2016 Lexus RC owner experienced reduced engine power, laggy throttle response, increased fuel consumption, and a whistling sound, suspecting a turbo or intercooler issue. The problem was identified as a wastegate valve defect, which was confirmed by a workshop. The repair cost was 860€.
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4 comment(s)
josephwalter1 (community.author)
Wastegate, huh? I've heard of those. Is that something I can easily check myself, or am I going to need specialist tools to diagnose that properly?
rudolfschulze4
Wastegate issues on these can be tricky. You might be able to spot something obvious, but honestly, with those symptoms, you're best off getting it checked by a workshop. Could save you money in the long run.
josephwalter1 (community.author)
Yeah, I figured as much. Bit the bullet and took it in. You were spot on about the wastegate valve, apparently it had a defect. Cost me 860€ to get it fixed. Thanks for pointing me in the right direction!
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LEXUS
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RC
rudolfschulze4
Sounds like a boost issue alright. That whistling/hissing is a classic symptom. Could be a wastegate valve problem, but it's hard to say for sure without proper diagnostics.