Questions trying to identify the source of a strange sound coming from part of a vehicle. Best accompanied with a video, to allow answerers to hear the sound.

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1
vote
1answer
4k views

Air conditioning gradually stopped working, hissing noise

On my 2003 Kia Sedona minivan, the air conditioning recently stopped working. This occurred somewhat gradually over the course of a week or so. I noticed today that if I turn the air conditioning on,...
2
votes
2answers
1k views

unusual noise when switching into the second gear - other gears are fine

Almost every time I switch into the second gear, a quite loud crackle sound is heard shortly. It only happens when switching into the second gear, other gears are fine. I depress the clutch fully of ...
9
votes
3answers
20k views

What are the audible symptoms of a failing starter motor?

My 2004 Subaru WRX has 110000 miles on the odometer and I'm worried about the original equipment starter motor. Here are the audible symptoms that have me concerned: During the winter, I noticed ...
25
votes
1answer
12k views

Why does the reverse gear in manual transmission cars sound different

When I got a manual transmission car (2003 Kia Rio) I noticed that it makes a winding sound in the reverse gear. Here is an example video that I found that demonstrates the sound. http://www.youtube....
2
votes
2answers
4k views

What could cause an engine to make a chirping sound when it's first started up?

I've owned a Diesel Peugeot 307 for a year now but during the recent winter months I have noticed a strange sound in the engine when I started it up. As sounds aren't well described with words, I have ...
8
votes
2answers
1k views

how can I quiet a 'chirping' ventilation fan motor blade?

I have a 2006 VW Golf and the internal fan motor that blows the a/c & heat will start to 'chirp' (sound something like a bird singing) randomly. I believe the fan blade needs to be lubricated, ...