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I have an uplander 2007 and my low oil pressure lightcomes on and keeps dinging what could be wrong

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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

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  • Expert
  • 90 Answers

Check the oil level add if low.

Posted on Nov 23, 2013

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Posted on Jan 02, 2017

tennkntryboy
  • 10 Answers

SOURCE: low oil pressure light keeps coming on

sounds like the sending unit has sludge in the hole time to replace it

Posted on Jan 09, 2009

  • 6982 Answers

SOURCE: low oil pressure gage fluctuates and the dinging

First thing you need to do is put a mechanical gauge on it and read actual pressure. If OK, change the sending unit.

Posted on Jun 17, 2009

  • 753 Answers

SOURCE: I have a 2001 Aurora 3.5L with excessive oil

Sounds like your oil pump pressure relief valve is stuck ?

Posted on Oct 03, 2009

fixitriteman
  • 431 Answers

SOURCE: LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED

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"

Mr BrokRench
  • 1623 Answers

SOURCE: I have a 2006 impala. On the highway the dinging

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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Good luck. i hope this helps. Please rate me a FixYa.

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