The vehicle listed above a Mokka model. PO299 code and metallic clicking sound while driving.
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Sep 4, 2025 at 10:02 AM
Code PO299, engine management light, metallic clicking sound while driving?
2016 VAUXHALL MONARO
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Thise code po299 is for an under boost condition in the turbo system can be a few things like bad intercooler issues with the turbo itself brocken crked loose joints pipes ect .could be somthing broken of in the turbo its hard to say but start there .good luck
Sep 4, 2025 at 1:08 PM
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I think the code has nothing to do with the noise, which to me sounds like a timing chain, guide or tensioner issue. It makes this noise when the chain is loose, you can remove the valve cover and use a long standard screwdriver to check the play.
P0299 - Turbo/Supercharger Underboost Condition
Please start a new thread for the code p0299, sorry, we only handle one problem per thread, please post your new question here, you must be logged in.
https://www.2carpros.com/questions/new
Please upload a video in your response so we can see :) Also, thanks for the video of the noise it really helps.
P0299 - Turbo/Supercharger Underboost Condition
Please start a new thread for the code p0299, sorry, we only handle one problem per thread, please post your new question here, you must be logged in.
https://www.2carpros.com/questions/new
Please upload a video in your response so we can see :) Also, thanks for the video of the noise it really helps.
Sep 6, 2025 at 9:34 AM