corbryant

Ok guys, there is just too much to go through. I've spent half of the day reading threads that say 5 different things. So can anyone give me some clarification on TSIB EG019-07? It covers 06-07 IS350s on the cam rattle issue, but I have an 06 IS250 and I can't find any verification that this engine is affected. Pretty sure that's what I'm hearing at startup, rarely at first and now almost every time I start it (I don't drive that car but maybe once a month). I initially thought is was a check valve on the hydraulic chain tensioner bleeding off pressure and slacking the chain. That's what it sounds like to me, the chain slapping the cover for a second until pressure hits the check valve and re-tensions the chain. I listened to a few videos on YouTube though, and they all refer to this TSIB, and it's the same noise. I work on my own cars so I just want to be certain of what I'm doing before I completely tear the top end down.

TYIA

Gville350

iTrader: (10)

Yes, IS250 members have mentioned having the "cam rattle" issue. The symptoms are exactly the same as those of us with IS350s with that problem, of which I did and had it repaired for free by Lexus. A new VVT cam gear fixed the issue.

Jwild909

I plan on taking my car in this week to get this checked out. Hopefully they will handle it since I believe it could be a safety concern if its not fixed. If not ill have to take up a case with Lexus Corporate.

Zynthe

iTrader: (5)

I think I might have this issue too? Is this something that Lexus will pay for or is it out of my pocket?

BLAD350

Yeah it sounds like thats whats wrong with your car. I also thought it was the timing chain and ur on the right track as its actually the hydraulic pressure bleeding from the vvt assembly causing the slack in it. I believe by changing the seal on it actually fixes it but i cant confirm as i have a 350 and the dealer changed the whole assembly free of charge. Unfortunately for u it doesnt cover 250's

nosurprise

iTrader: (1)

I think this issue is a recall on the IS350 (repair free at any time), but it's only a TSB for the IS250 (the repair is only free when you're under than basic warranty).