Cadillac CTS-V - Terrible noise at startup in cold weather!
12-10-2009, 06:16 PM
Any ideas? I have an '04 with approximately 59k miles. This is the first winter with it and today is the 2nd day of near 0°. When I started my V this morning and again when I got done with work, there was a horrible howling coming from the engine bay. Is this a known problem? Perhaps a belt tensioner... I hope not worse. My initial reaction was that the oil was too cold/thick and not circulating. What are your thoughts?
12-10-2009, 08:24 PM
prolly just the belt, but id pop the hood and actually look in there while its howling..
12-11-2009, 12:06 AM
Probably the power steering pump. Mine does it if its below 50 degrees outside until it warms up. I've had a few cars do this. If you have a warranty the dealer will replace the pump.
12-11-2009, 12:28 AM
It only does it for 3 seconds or so. I'll pay closer attention tomorrow morning when I start it up. If it's only the power steering I'll be happy.
12-11-2009, 12:30 AM
Make sure the power steering reservoir is completely full. Mine was doing it and it was just a little low. Being in Dallas mine has never been subject to 0° so even if yours is full it might still do it a little. Switching to a synthetic fluid would probably help too.
You might also try turning the wheel when it makes the noise and if it changes pitch you know its the power steering.
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