1988 Buick Skyhawk Custom 4 Cyl 2.0L
Oil Pressure warning Light comes on after engine is run a short distance
Can this be the oil sending unit or other ; or is it definitely the oil pump
Nissan Technical Advisor 2/3/2011
Could be both, check the condition of the oil first if low or contaminated, adds proper fluid or change it with new filter and see if this resolve the issue otherwise more diagnosis and testing should be done. Check the links below for trouble shooting low oil pressure problem.