I need help trouble shooting ..........my oil pressure gauge is right at 215 on my 1995.5 rodeo..V6 . I changed oil rode good for one 15 mile trip on way back noticed it was at 215 again. Normally sits at 85. Any Ideas.

I need help trouble shooting ..........my oil pressure gauge is right at 215 on my 1995.5 rodeo..V6 . I changed oil rode good for one 15 mile trip on way back noticed it was at 215 again. Normally sits at 85. Any Ideas.Bad oil pressure sending unit.

where is the oil pressure sending unit. Do you know if it is hard or easy to change?