Question about 2005 Scion xA

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Engine Knocking Noise

I have a 2006 Scion xA with 17,000 miles. I bought it used at 12,000 miles about 9 months ago. A few months back I started hearing an engine knock/rattle sound. Someone told me it was because I was putting cheap gas in it, so I switching to a higher octane for a few times and it did not help. It's in the garage today for basic oil maitenenance and I asked them to check it out. However, I am suspect they'll come back with a big price-tag fix. Anyone have this issue and what was/is the resolution.
Thanks very much.

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I don't think that the petrol quality will come up with this noise and also the engine is fairly new to have these sort of problems.. Have you run out of oil and used the car? I would suggest a computerised diagnostic if you are getting any error code on the dashboard.It is quite complicated to get an answer for your question...

Posted on Jun 16, 2009

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This problem in a car this new is likely to be caused by low octane gas. if it doesnt go away after the old gas has been removed and higher octane gas put in then there could be another problem. when does it make the knocking sound? is it only while under heavy load? ie going uphill in higher gears? is it manual or auto?

Posted on Jun 16, 2009

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