SC 300 A.M. hissing sound on startup
I have a 92 SC300 that I love, but recently when I first turn the switch on in the morning and before I crank it, I hear a sound of air hissing coming from the engine compartment and lasting about 10 seconds. It cranks and runs fine and this sound only happens on the first start of the day and not everyday. Anybody experience this and have any advice. Thanks,
Daniel
Daniel
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