IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models
View Poll Results: Having Carbon Buildup Issue?
YES! Experiencing vibration/shaking at the stop
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NO! Car runs smoothly
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POLL: IS250 Owners, How many of you having Carbon Buildup problems?

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Old 06-07-12, 01:55 PM
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TheRusski
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Question POLL: IS250 Owners, How many of you having Carbon Buildup problems?

Trying to figure out how many % of us IS250 owners experiencing Carbon Buildup issues, Thanks!
I have 06 250 with 60k miles on it and experienced small shake at the stop light once, not sure if it was caused by carbon buildup.
Old 06-07-12, 02:45 PM
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bob4256
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I'm at 34k miles and have no problems. I'm hoping it stays that way
Old 06-07-12, 02:54 PM
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Fizzboy7
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Yes, started at 16k miles. Not thrilled.
Old 06-07-12, 03:00 PM
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TheRusski
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Wondering why some people experiencing it as early as 16K miles ^ and others well over 100k miles without a single problem....Driving habits? different maintenance?
Old 06-07-12, 03:07 PM
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iRyan
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I'm at 38k and going good....
Old 06-07-12, 03:17 PM
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whitecel
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I have it but rare occasions so I haven't bothered with it. Currently 30k...
Old 06-07-12, 03:41 PM
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600rr05
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it happened to me twice but they replaced my pistons like a month ago haven't had it happen since.
Old 06-07-12, 04:13 PM
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kingz415
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I have had shakes during cold startup once in a while but it doesn't really happen that often so
I haven't bothered with it
Old 06-07-12, 04:40 PM
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kinglexus99
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Can I vote too?




Kidding!
Old 06-07-12, 06:28 PM
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TheRusski
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Originally Posted by 600rr05
it happened to me twice but they replaced my pistons like a month ago haven't had it happen since.
Do you have extended warranty?
Old 06-07-12, 08:59 PM
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600rr05
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Originally Posted by TheRusski
Do you have extended warranty?
I made it under the factory warranty by exactly 1 week left..after the work they did they gave me another year of full warranty also while they fixed my pistons they also found something wrong with my water pump..
Old 06-07-12, 09:14 PM
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Fizzboy7
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The question is, at what point does Lexus usually come in and issue some sort customer assistance program? I forgot what it was a few years ago, but they were issuing $500 gift cards and extending warranties on IS350's for some chronic problem. Engines nearly stalling with check engine lights is not a small deal. Being without your car for weeks at a time is not a small deal. Having to rebuild major parts of the engine is not a small deal. See the theme? It's time for them to step in and restore some faith in the brand, I of which am not too willing to promote right now.
Old 06-07-12, 09:27 PM
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Sffd103
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mine sputtered once and they blamed my intake (injen). I said that's B.S!!! then it happened again with all dash lights coming on both times. I went in and told them and they did the top engine flush and had them change the oil with my own Mobil One and a OEM filter from Sewell. cost FREE!
Old 06-07-12, 09:44 PM
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KillaIS250
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Had it twice now. First time, had the top engine clean done. About 20k miles later, issues again. This time, had the pistons replaced via the new TSIB. 1,000 miles later, carbon build up is present again along with a misfire code once again. Picture were taken, compression and leak down tests where taken... Info was sent by the dealer to Lexus corporate. They are rejecting any further repairs at this time. My SA believes something bigger (I hope recall) is on the way if they are rejecting my repair despite having all the issues confirmed. I really hope so.

It doesn't seem like many people are complaining about this issue to corporate though. I think if more people make corporate aware, they will do something quicker.
Old 06-07-12, 09:53 PM
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juvi22003
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I brought my car originally for the cam gears, but they told me the cam gears were fine but one of the cylinders were miss firing. They replaced all pistons, gasket and some other lil stuff lol. Car feels much better but all my dash lights are still on, weird. Oh well waiting on that new body style i might just upgrade


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