I have a 1968 chevelle and I'm getting a bad humming sound coming thur the dash get worse as accelerate

Asked by Dec 12, 2015 at 05:08 PM about the 1968 Chevrolet Chevelle

Question type: General

The whole car was restored disconnected
speedo still grinds hums...compressor is rebuilt
and is kind of noisy when in gaged at idol.

2 Answers


have you driven at least 100 to 500 miles since rebuild?

Not yet but since drive shaft has been balanced it much better but I still have lifter chatter but it is getting quieter. It's a new blue print 496 big block it's I screamer! Let you know as time goes by.

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