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York IS 350

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  • Lexus Model
    IS 350

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  1. Update: My dealer completed the TSIB repair last week and so far all is well. Theypicked up my car on a Monday morning and returned it Thursday at noon. They actually had it completed Wednesday afternoon but wanted to keep overnight to make several cold starts to see if noise issue was resolved. So far, I have heard no noise. For those that have experienced this problem, this is the proper remedy. Forget all the non-sense about oil viscosity and frequent changes. I will report back to this chain of messages if the noise returns. Good luck to all.
  2. Quick update. Parts are finally in at dealer and have scheduled repair on 9/24. Will provide report on outcome of service when complete.
  3. OK. Here is the scoop on this grinding noise at start-up. As I reported previously, my dealer finally diagnosed the noise in my IS350 and noted that a TSIB was issued to remedy the problem. Thanks to Member 'mehullica', I can report that the TSIB number is EG019-07, titled "Brief Enginer Knock/Noise at Cold Start". It is designated for IS350 '06 - '07's. It covers these model years for VIN #'s before JTHBE262#72009954 (TMK Producing Plant) and JTHBE262#75015099 (Tahara Producing Plant). The required repair is covered under the Lexus Powertrain Warranty (72 months or 70,000 miles). As I read through the TSIB, I was astonished at how invasive the repair proceedure is. Virtually the entire top end of the engine must be dismantled including the intake cams (left an right). The repair involves replacing the intake Camshaft Gear Assembly and is estimated to take 6 hours. I certainly hope that the dealer service techs are well trained for this major repair. Not exactly what I bargained for when deciding to purchase my first Lexus. I went the Lexus route versus BMW to avoid this type of major headache. Will be my last Lexus if my dealer can't make it right. Anyways, hope this is helpful for those who have experienced this issue. I will report back with the results of my repair experience. Hopefully the attachment of the TSIB comes through with this reply. L_EG019_07.pdf
  4. Take a look at the topic "Is350 Engine Noise At Time Of Ignition". I posted a response to this after my dealer acknowledged a TSB on this problem. It was mentioned it had something to do with the cams as you noted. When I learn which TSB, I will update.
  5. You have described this problem very well. My 350 developed this at around 5000 miles also. It now has 12,000. Dealer has been unable to diagnose due to being very intermittent. Recently took car in for annual safety and emmission inspection and told them to keep it until they diagnosed noise. To my surprise (one day later), dealer called and said they found the cause and it is described in a Technical Service Bulletin (don't know which yet) and that parts were ordered and will be repaired under warranty. I was told it was something to do with one of the overhead cams (chain tensioner possibly??). Any ways, for those that experience this annoying noise, sounds like there is a solution. When I find the TSB number, I will pass along.
  6. At about 5,000 miles, my IS 350 started to develop a "rattle" on cold starts. I would decribe it as piston rattle where the skirt of the piston slaps against the cylinder wall. It hasn't happened often and never when warmed up or warm outside. (above 50F) I recently heard on a radio show a desciption of something similar with Subaru's and that piston rattle was fairly common with that brand. Oil viscosity was suggested as a remedy. I am thinking of switching to synthetic. Have not discussed with my dealer yet. Don't know how serious this might be but it sure sounds bad and embarasing for a $48m car.
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