Question about 2003 Chevrolet Impala
It doesn't really sound like unlubricated lifters and may not even be internal to the engine itsefl. I can't identify the precise location of the rattle's origin. It goes away when the car is warmed up, so I can never get it to a mechanic soon enough for them to hear the sound.
The noise is not present when starting the car in moderate to warm temperatures. (I.e., above 50 degrees F).
The vehicle has 44,000 actual miles.
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