I have a 1968 chevelle and I'm getting a bad humming sound coming thur the dash get worse as accelerate
The whole car was restored disconnected
speedo still grinds hums...compressor is rebuilt
and is kind of noisy when in gaged at idol.
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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