Acceleration Chittering Noise

2004 FORD CROWN VICTORIA
129,200 MILES • 4.6L • V8 • AUTOMATIC
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MAJORHAVOC
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Recently I have discovered that sharp acceleration will cause a chittering sound simar to that of a bug. It seems to be coming from somewhere under the back of the engine compartment.

Accelerating will cause the sound to increase in frequemcy. When the speed is constant, the sound disappears. It does not appear when applying brakes or when naturally decelerating.

I recently got an oil change thinking it was simply low oil pressure besides the fact that I needed one, but that had no effect. Revving the engine in park does not produce the noise. All other engine noise is smooth, so I don't think it's an internal problem.

I have checked for debris in the wheels and on the driveshaft, but other than that I am out of ideas.
Apr 10, 2016 at 7:21 PM
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HMAC300
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have a trans guy check this it may be the torque converter giving a problem like internally
Apr 11, 2016 at 7:00 AM