There has been a service bulletin released that addresses the fault code P0521 you are experiencing. It involves cleaning the baffle in the If it indicates that the Tech 2 oil pressure parameter is low but proper oil pressure is present at the oil filter housing, inspect the Valve Question on oil pressure sensor | Chevy Avalanche Fan Club of
I checked it with an OBD reader and got the P0521 code: "an irregularity has been detected in the sensors that monitor oil pressure in your Check engine light is on, ran scan error p0521. Oil is full and Yes, enough so that they made a service bulletin for it. https Service Bulletin PRELIMINARY INFORMATION
Check engine light trouble code p0521? | GM Truck Club Forum Here is the service bulletin in regards to the above concern. GM has released an updated PF48R. I recommend using a PF63 as these filters GM P0521 Code Fix Oil Pressure Switch and Filter Update
Recommendation/Instructions. If you are working on a Gen4 V8 that is setting a DTC P0521 and/or has low oil pressure indicated on the instrument. The OBD-II code P0521 is triggered when the PCM perceives that the reading from the oil pressure sensor is higher or lower than predicted. See
P0521 | Chevy Silverado and GMC Sierra Forum Untitled Oil consumption in 2021 Chevy Equinox LTZ 1.5L Turbo?
Why wouldn't they just start using the upf48r filter like the technical service bulletin says. Silverado with the 5.3 in it and the code P0521 p0521 | Chevy Silverado and GMC Sierra Forum P0521 Code: Engine Oil Pressure Sensor/Switch Range
A couple of months ago I got a P0521 (Engine Oil Pressure Sensor Range/Performance) code. service bulletin coming out addressing the issue. oil pressure issue / oil filter the cause | Chevy Silverado and GMC