Noise when cold

Guireman

New Member
Dec 19, 2004
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My 2000 GT makes a pretty loud moaning sound when I first start it in cold weather. The sound is not RPM related and I can't tell where it comes from.
I can rev the engine a little and it goes away but comes back at idle until the engine warms a little.
It does not affect the way it runs, and there is no check engine light.
Any guesses as to what it could be?