Hello, i have a question regarding my 2007 Volvo V50 (129,000 miles).
There is a slight squeak when I cold start the car in the mornings and when I leave from work (usually sitting for 5+ hours), it will only last about 5 - 6 seconds while the car is warming up, I do not hear it when driving at all. Nothing smells under the hood and no codes are being shown. I live in the Pacific Northwest and it can get pretty cold up here.
Any ideas on what it could possibly be?
Timing belt replaced @ 103.573 miles.
Transmission Fluid changed @ 124.000 miles
Oil changed around every 3000 miles.

 

I'd suspect its a serpentine belt idler or tensioner or could be one of the accessories (PS pump, alternator, AC ). Does the car make any belt noises when cold - say when you turn the steering wheel? Typically the belt should have been replaced as part of the timing belt service which was probably 7-8 years ago but the idlers and tensioner may be original.

 

If you have a helper fire up the engine, you might have time for this test (Mercedes but the concept is the same of course):

 

No noise when i turn the steering wheel. To be honest the noise actually happens for just 2-3 seconds, not as long as i stated in the original post.
It seems to just happen when i start it up after it was sitting for a few hours. Other than that no noise whatsoever.

 

I'll try that this weekend, but it does not make constant noise after about 2-3 seconds. It's quick and then goes away very quick.

 

Here is a quick vid, squeaked for like one second but it might be coming from this?

 

That's the video I posted above. If you think it's likely an idler pulley, you can just spray them one at a time and see if the problem just disappears (though most likely, temporarily). Then replace that one. If the noise continues with no change, move onto the next pulley and try again. If you get lucky, it'll be pretty clear that the noise is gone when you do hit the "right one" with a shot o' lube.

 

Sorry i was on mobile yesterday, these are the videos.

 

Not sure what we're supposed to be seeing...