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Old 03-13-2019, 07:26 AM   #1
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Thanks for the response Radium King.

It's an M97 I believe... the car is a base model.

Also...

Last night on the way home I paid a bit more attention to the noise and there doesn't seem to be a lot of rhyme or reason as to when it ticks and it seems to NOT be changing with engine RPM sometimes, but sometimes does. It's kinda hard to pick that detail out as it generally goes silent with a couple percent throttle opening. After hearing it a bit more it sounds maybe more like something plastic. A bit less sharp of a sound than two metal bits clattering against each other. Again... totally intermittent and does not sound the same as the valvetrain "sewing machine" sound. Obviously that puts it in an entirely different class of possibilities if it's plastic .

Either way... A service tech will take a look on Saturday. I'll report the findings for anyone that's as curious as I am .
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Old 03-13-2019, 07:40 AM   #2
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An 09 has the IMS-less 9A1 engine.
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Old 03-13-2019, 08:20 AM   #3
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Originally Posted by M1Combat View Post
Thanks for the response Radium King.

It's an M97 I believe... the car is a base model.

.
Negative. The 2009 Boxster and Cayman 987.2 both got the completely redesigned 9A1 engine with excellent internals. The 2009 Base models retained the throttle body FI while the S models moved to DFI. In 2010 all 9A1 engines moved to DFI and gained a few ponies in the process, at least on paper.

I actually think the 2009 with 9A1 internals and throttle body FI is a great combination.
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