Oil pressure switch test

1999 CHEVROLET TAHOE
202,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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THUNDER123
  • MEMBER
  • 7 POSTS
When I unplug the fuel pump relay the engine shuts off. does that mean the oil pressure switch is bad?
Jun 7, 2019 at 3:53 AM
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SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

No. It simply means that you have created an open in your fuel pump circuit and that is the reason your vehicle shuts off.

Thanks,
Alex
2CarPros
Jun 7, 2019 at 8:16 AM
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THUNDER123
  • MEMBER
  • 7 POSTS
Okay, thanks.
Jun 7, 2019 at 8:55 AM
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