I was getting a squeal on start until warm. It wasn't my serpentine belt, so I assumed it was the timing chain issue mentioned here. I had a death in my family and traveled 2700+ miles round trip and now the sound is gone. It doesn't happen on start, when cold or hot, it's simply gone.
QUESTIONS:
Are the shoes/guides functioning properly, but because they are making noise people replace them?
Is it possible to diagnose bad shoes/guides without the noise?
What's the worst that could happen here?
In the interim, I've not noticed any timing related issues or fuel consumption changes. I'd hate to have the dealer tear open my engine for a diagnosis to solve a nuisance issue that may have self resolved. But, at the same time, I don't want to have to replace the engine due to ignoring it either. I'm due in for my scheduled oil change this week... Maybe I'll mention it to the tech...
All comments welcomed!