Ladies & gents,
Forgive me for being direct, I don't meant to be rude. I just want to be concise and clear at the same time. I'll start with some questions, and then tell you my story. I appreciate any time you can spare.
Would someone explain precisely where in the engine this problem originates, and then further, which parts down & up the chain are directly affected by it? For example, if oil's leaving the timing gear area, what's letting it leave? Is that thing the problem? And what's that thing called? And when that thing's problematic, what are the names of the parts down/up the chain that suffer? Which objects actually produce the audible noise? And could you explain precisely what's happening in those two objects, when they're making that noise? And what are the long-term consequences to the engine of that?
I want to tell my dealership what's happening, precisely. Because I'm pretty sure they'll need to be told -- going by all the evidence out there on the Internet, if I lack a full command of specifically what's happening, they simply will not take me as seriously as I intend to be taken.
On Monday (12/19/2011), I took my Scion tC 2012 in to have this fixed. The engine got nice & hot on the way there, oil as well, as it's a 20 minute drive at highway speeds. I let it sit overnight, with instructions to them that I wanted to be there when the car was started the next morning.
Tuesday (12/20/2011), I showed up at 8:00 AM and they started the car, and a mechanic I believe I can trust listened to the startup noise, said yeah you're right, that's exactly what the TSB for the other cars with your engine addresses. They ordered the part/parts, a timing gear I believe.
Wednesday (12/21/2011), the part/parts show up, they installed it, had it ready for me to drive home that evening. I picked it up at 4:00 PM. The gentleman who called me said it was probably fixed, they didn't hear the noise after letting it sit for four hours and then starting it. I can only conclude that they started the engine immediately after "fixing" whatever they fixed, ran it for a minute or two (certainly not enough to get the oil hot, since oil temperature lags engine temperature), turned it off. Started it again four hours later and didn't hear the noise. From what I've read, if you pump cool oil throughout the engine and then stop the engine, the oil stays around a lot longer, than if you have oil that's hot. Hot oil will drain out of all the nooks & crevasses of an engine almost instantly. I can attest to this because after an extended drive of at least 10-20 minutes, I can turn the car off, come back to it 30 minutes later, and there's that noise. Every single time. Never fails, provided that the oil was hot when I turned the car off, and let it sit at least 20 minutes.
Ultimately, I suspect they'll find a way to take care of me. If I have to go through anything like what VVTinme and so many others have been put through, however, then I do already have a Plan B, part of which involves a media blitz: consumers must know about recurring Toyota/Scion/Lexus quality control problems that go on for years and never get fixed. This speaks volumes more than the misleading ads portraying the Toyota-umbrella of companies as held to uniquely high quality/production standards. For now, I still have (I'm forcing myself) trust in my dealership, and they can buy my silence with swift, contrite action. This will certainly be an interesting experience, and I'll keep you all posted as much as possible.
Any last tips I should be aware of?
Thank you,
-Chad