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Discussion Starter #1
i have an annoying rattle coming from my engine area while under hard acceleration. anyone have any idea's on what that could be?

the rattle is not there unless i am accelerating and the revs are up over 2000 rpm.
smooth idle, and when up at speed with no acceleration the rattle is there. but faint.

2001 accent gs stock 1.5 manual
 

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Do you hear it while cruising uphill sometimes?

Does it sound like someone put pebbles into a tin can and is shaking the can from side to side?

If it is, then your engine is probably pinging. My car does this too, and apparently, so do most people's accents. I've been told hyundai programmed the fuel map to be lean in the interests of fuel economy. I think it's stupid.

If it's not that, then I don't know what it is. Sorry.
 

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Try running one step higher octane fuel. That should do the trick.
 
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