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P0521
Did you ever sort this issue out?- KOMaynard
- Post #2
- Forum: 4th Gen Ford Expedition General Discussion
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K
2018 Expedition Intermittent Low Oil Pressure Warning
No corrosion on the battery terminals, metered at 12.18V. (Previously, per data pull yesterday, 14.73V while motor was running). Oil level is also in the right range per dipstick. I should also note, the Mobil1 filter is the same one I’ve used without incident for the last 5-6 oil changes...- KOMaynard
- Post #4
- Forum: 4th Gen Ford Expedition Engine & Performance
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2018 Expedition Intermittent Low Oil Pressure Warning
Yes, 5W-30 (Valvoline Full Synthetic Restore and Protect) and then not the Motorcraft Part, but the Mobil1 equivalent, M1-212A. I’ll double check the positive terminal, but I had check both terminals when I put the negative back on after switching out the sensor.- KOMaynard
- Post #3
- Forum: 4th Gen Ford Expedition Engine & Performance
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2018 Expedition Intermittent Low Oil Pressure Warning
I have a 2018 Expedition (85k miles) that has been showing a P0521 code, however, 99% of the time the gauge on the dash reads normal. I replaced the oil pressure sensor and did an oil change, however, the error code returned a day or two later and has continued to intermittently show. Once in...- KOMaynard
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- Replies: 12
- Forum: 4th Gen Ford Expedition Engine & Performance
