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George9955

Rattling/tapping sound when the engine is on low rpm under laod

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New here!

I have a Toyota IQ 2009 with 1L VVTi automatic transmission. The engine (it seems) is making a rattlish sound at around 1200 rpm. This happens when slight throttle is applied and is under load.

I am running 98 fuel and would like to know whether it is normal and if not, what may be the problem?

Thanks in advance!

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I have just bought a 2009 IQ that has a similar problem. I think it's probably normal for the car's 3 cylinder engine to vibrate at low revs under load but this rattle is annoying. I had the exhaust and engine mounts checked and apparently no issues found. It looks like it's easy enough to remove the exhaust heat shield without damaging it so I was thinking of removing it to see if it makes a difference. At least then I'll know whether it needs fixing better somehow when I refit it 

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