Chevrolet Repair: 1989 chevy. pu., billy dixon, vacuum line

Question
I have a 1989 chevy. pu.350 eng. I am getting a high pitch noise through my radio and c.b. coming from the alternator any idea how stop it.  thanks billy dixon

Answer
What mechanical work or ANY kind of work has been performed on the vehicle recently ?. As most problems that occur after a recent repair was made can be traced back to the area of where the repair was made as a vacuum line may have been knocked loose or a wire connection came loose, Look around in the area where work was performed.

Usually the cause is a faulty condensor within the alternator or a fault within the radio.

This will take expert testing to locate the source.


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