i have 91 buick lesabre 3.8l i replaced oil pressure sending unit & now car wont start

1991 BUICK LESABRE
10,000 MILES
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DALE BESTUL
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  • 1 POST
there were frayed wires on sending unit ive checked all fuses they are ok
Nov 22, 2011 at 7:58 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
the oil pressure switch is a fail safe for the fuel pump in the event the relay fails. if the wires short there, it may blow the fuse for protection.

check the connector and uncover the wires back a bit to make sure they are not bare and touching. if it does, get a connector for the switch and change it out.

Roy
Nov 22, 2011 at 8:06 PM
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