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cold weather

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cold weather
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2.6K views 5 replies 4 participants last post by  clarksaab  
#1 ·
now that the weather is getting cold again ive noticed my turbo sounds a little different when i start the car cold. after letting it warm up it seems to sound find again. boost pressure is fine just when the days have been cold it seems to sound a little different until the car warms up. Is this odd or normal?
 
Discussion starter · #5 ·
When the cars in park after cold start its almost like a whine but when it heats up and i drive it, its just a normal turbo whistle. Not only that but today was first frost in my neck of the woods but on warm days it doesnt occur.