Weird Ticking like Marbles on my Mazda5

[newbiemazda]

My Mazda 5 is ticking sometimes upon start-up, making a weird noise which you can here at this link...

http://www.youtube.com/watch?v=39Bh8ooji0Y

It goes away after a few minutes of the car running. This is not every day, I cannot figure a rhythm, it is not necessarily when it is cold outside, but still normally happens after it has sat over night. I have brought it to the dealership but they could not hear anything wrong with it, drained oil, but could not hear a problem. (dunno)

Warranty is running out soon, and I really want the issue resolved.

 

[thaxman]

Maybe they should keep it overnight, then be sure no one touches it until you meet the svc mgr in the AM to start it together?

 

[thaxman]

now that I've seen the video, I propose that it is possible the camshafts are oil-starved. What is your oil regimen?

 

[newbiemazda]

Oil Regimen

Well I only just bought the car a few weeks ago from a private party, and have about 2 weeks left in the warranty. My oil regimen so far was to take it the second day to Mazda dealership in town for an oil change. The day prior to this there was no noises during test drive so I drove it home at night.

The morning after the oil change the noise came. My wife brought it to the dealership immediately after calling to make sure we should be driving it. They flushed the engine and said there may have been bits of the old filter in the system, but could not see any reason for the noise. They could not hear it, and refilled my oil with their recommendation and sent her home. (with no paperwork (scratch) )

Thanks again for your response...any help is appreciated.

 

[Robotazky]

Sounds like a belt or pulley to me. My belts have been noisy on startup since it drove off the lot. At first I was upset, but I'm too busy to keep arguing with the crappy Mazda dealers around here and eventually gave up.