Question about Cars & Trucks
Yes its quite likely a bad oil pressure sensor - my warning started to ding after the car was warmed up and then ding more and more.
To be sure you would need to attach an oil pressure guage to ensure the pressure is still proper - but if your engine has not seized and is still running and doesn't sound like scraping metal, there is still oil pressure.
To replace, you must access from below. You will need a 27mm (or 1-1/16") DEEP socket for the sensor - it is not possible to access with a wrench. First remove the starter motor as flollows- DISCONNECT BATTERY! The wire on the starter can easily short if you dont..Then remove heavy bracket below starter 3 bolts x 15mm. Then remove plastic cover 1 bolt x 10mm. Now you can remove the 2 starter motor bolts x 15mm. Lower the starter down and unbolt the wires x 13mm and remove other wire connector. Now you can access the sensor which is located just about the oil filter sitting horizontal pointing toward where the starter was. Remove the wire connector and slide the 27mm socket over. Now you can unscrew the old sensor out and screw the new one in - be sure to only lighten tighten - it should not be torqued very strong. Reassemble all the parts and connectors and then the battery. Hopefully this will solve the low oil pressure warning.
Posted on Jan 20, 2015
Check the oil level add if low.
Posted on Nov 23, 2013
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Posted on Jan 02, 2017
have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds
Posted on Mar 11, 2010
Testimonial: "thanks alot.truck is not making a rattling noise.we did check it with a manual gauge.it read about 10 at idol. press. gets better as you incr speed"
Hi stevie, your Impala probably has a defective sensor, often called a "switch" that senses the oil pressure. The oil light and chime is a result from a false signal from the bad sensor.
But one cannot take a chance. If the sensor is acting properly, and pressure is low, it could really damage your engine to have low oil pressure and oil not pumping properly. Have it checked now. A new sensor should cost about 60 dollars & takes only a few minutes to install.
Good luck. i hope this helps. Please rate me a FixYa.
Posted on Jul 01, 2011
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