Re: Always check here before asking Powermaster / Hydroboost diagnostic questions
Ok, sorry to be posting again on this worn out subject, but I have further information. After talking with Mike at Spool Fool, I went back and tried his suggestion of wiggling connections while the ignition was on. Wiggling connections to the pressure switch, and power to the pump motor produced no results, however, tapping lightly with a hammer on the pump housing started the pump and the brakes work normally. I guess this is a case of a bad pump motor and I appreciate the resource information for the part number to replace the pump and motor. Problem is solved for now.
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