The electronic oil pressure gauge on my 1994 7.3 IDI non-turbo seems to be reading on the low side of normal about 1/8 inch to the left of N both cold or hot . It was reading just above the N just about 1500 miles ago . No difference after an oil and filter change . I guess I need to check the pressure with a gauge or even tee-in and install a permanent mechanical gauge . Where is the oil pressure sending unit located on this engine ? BTW, Is there any way to test an electonic sending unit with VOM ? - Thanks
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