issue Noisy idle, clattering sound

By Yooper1
February 3, 2014 in Troubleshooting & Recalls

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TheBoxerman

Posted February 9, 2019

On 11/6/2018 at 8:19 AM, migizi said:

reviving an old topic...

did anyone ever come up with a fix for this annoying noise?

I can only attest to what I’ve done to lessen the noise at idle and it seems to be fairly consistent:

1) keep premium in it rather than 87 or when possible, I put 90 octane, ethanol-free from the station near my house.

2) occasionally run the two-part BG ethanol treatment stuff I get from a local dealership (non-GM) that sells it.

The clattering noise is something that seems to just be a GM thing.

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issue Noisy idle, clattering sound

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TheBoxerman

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