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27/12/2024 3:01 am
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Hi Scotty, my 2020 Cadillac XT5 AWD seems to be making a whistling sound when at low speeds before it warms up. It sounds like someone is blowing over a pop bottle. Once it’s warmed up it seems to go away and when it’s colder out it gets louder and takes a while longer to disappear, there are no engine lights and I am a little stumped. Do you know what this could be?
thanks
CadiSean
1 Answer
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27/12/2024 8:02 am
Often that could be as simple as a bad PCV valve. But to find the noise, watch my video finding the source of car noises
