oil preasure gadge going up and down

2003 PORSCHE 911
800,000 MILES
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MIGUEL VARGAS
  • MEMBER
  • 1 POST
when i start the car oil preasure gadge goes up and down like if its broken
Oct 5, 2011 at 9:32 AM
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SQM
  • ✓ASE Certified Mechanic
  • 6,383 POSTS
  • ASE Certified Mechanic
Hello,

Are you experiencing any drivability issues? Any noise from the engine?

If the engine drives as usual and has no other issues, this could be due to a faulty oil pressure sensor, loose or corroded wiring or a bad gauge.

Inspect the pressure sensor, make sure the wiring is secured and does not have any corrosion or pulled out pin.

https://www.2carpros.com/articles/high-or-low-engine-oil-pressure

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Jan 23, 2022 at 10:54 PM
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