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Originally Posted by blinkwatt
I will keep it simple because I've kept an eye out on this stuff for 2 years now.
3.2L ARE THE ONES THAT HAVE IMS FAILURES MOST OF THE TIME.
Just ask Chris Zang, Dennis(PPBB) and all the 996(3.4L) owners on rennlist what happened to their engines. IMS failures.
The 2.7L tend to be safe because they don't have the same IMS as 3.2L & 3.4L engines.
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Sorry Blinkwatt, I have to disagree with you on this one. We just had a thread about engine failures at
http://986forum.com/forums/showthread.php?t=16822
This thread showed about 25 failed engines and of these, 20 were 2.5/2.7L engines. The failures were either slipped cylinder sleeves or IMS failures. The reported MYs ranged from 1997 though 2003 and the mileage reported at time of failure was all over the odometer, some with low miles, others with 60K plus miles. No real pattern.
For the 5 or so 3.2L S model engines that failed, there was no real pattern on the odometer reading when the failure occurred either.
At any rate, with thousands of Boxsters produced, hearing about 25 with failed engines in one thread tells me only one thing... there's not much data here to make a statistically reliable judgment about any of it.