P0521 Chevrolet -

Question

Just had oil change now my engine light come and my oil pressure gauge is reading 80 on my 2007 Silverado 5.3 and I'm getting the 521 code any help would be greatly appreciated

Answer 1

Hi there,

This code indicates an issue with the engine oil pressure sensor. Here is a list of possible causes.

P0521 CHEVROLET - Engine Oil Pressure Sensor/Switch Circuit Range/Performance

Read more: https://www.autocodes.com/p0521_chevrolet.html