- Dec 5, 2011
- 63
2005 Trailblazer EXT 5.3L V8 with about 260,000 km. My wife got an error on the DIC about low oil or low oil pressure. She checked at the dipstick and it was very low (which is a bit unusual as it never burns oil). She added about 2L then I added about another 2.5L to get it into the hash marks on the dipstick. Today her check engine light came on with a code of P0521 which seems to be Engine Oil Pressure Sensor/Switch Range/Performance. I've cleared the code and i'm going out for a drive to see if it comes back.
Could the low oil have set the CEL? Could a faulty sensor switch have caused an oil leak? Anybody have any hints on the next steps on my diagnostic journey? I must admit that oil leaks and pressure problems scare me.
Could the low oil have set the CEL? Could a faulty sensor switch have caused an oil leak? Anybody have any hints on the next steps on my diagnostic journey? I must admit that oil leaks and pressure problems scare me.