Low oil pressure light turning on

Tiny
JOHNHALL
  • MEMBER
  • 2005 AUDI A4
  • 1.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
Ran sea foam in it and changed oil and filter. Still getting low oil pressure light and what sounds like clattering lifters.
Monday, October 21st, 2019 AT 10:13 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi,

Two main causes of low oil pressure are failing oil pump or excess clearance in the bearings. If the light is on all the time then we need to put a mechanical gauge on it to see what that says. If it shows low pressure as well then it is a mechanical issue and these would be the most likely cause.

However, if the gauge shows okay then more than likely you have a faulty sensor.

Here is a guide that gives a little more detail on these items. Let me know what the mechanical gauge says and we can go from there. Thanks

https://www.2carpros.com/articles/high-or-low-engine-oil-pressure
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Tuesday, October 22nd, 2019 AT 4:07 PM

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