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First recorded activity by BoatBanter: Aug 2006
Posts: 15
Default oil pressure sending unit

On Jan 14, 5:14*pm, RichH wrote:
Oil pressure electric sending units usually electrically 'ground'
through the sending unit. *The trandsducer varies how much these units
ground by variable resistance. * If the gage is showing zero = open
short; if pegged at high pressure = dead short .... Corrosion of the
'connector' on the sender will alter the resistance. * Such senders
are quite cheap; do a resistance test on the wiring, then ultimately
replace the sender and see what happens.


thanks Rich