Q: Oil pressure sensor....need changed or just dirty

您可能仍然希望亲自检查系统，以了解可能的不良传感器或与传感器的连接。洗涤后，您可能已经在连接器上冲洗了一些腐蚀。如果您有专业的检查系统，请让他们检查连接器和传感器是否存在任何类型的连接或腐蚀问题。

Also, Chevrolet uses the oil pressure on some models to let the computer know if you have enough oil pressure to keep the engine operating normally. Your engine may have a blockage in the oil pressure sender passage that goes to the lifters and may need to be cleaned out. This instance would cause the sensor to not get pressure from the engine due to blocked passages. The manufacturer has a technical bulletin for this issue and the processes to clean out the passages and oil sender if this is indeed the problem. If you would like to have this checked, a mechanic, such as one from YourMechanic, can come to your home or office to inspect your oil system and determine if anoil pressure sensor replacementis needed.