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Old 06-12-2014, 12:24 PM   #1
ChevyGirl71
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Exclamation MIL code P0523 - Engine Oil Pressure Sensor

When my check engine light came on I hooked up the tool to see what code I would get. This is the code I'm getting which indicates a problem with the engine oil pressure sensor/switch circuit high voltage.

Question 1: is this a simple fix and about how much do you think this would cost at a Jiffy Lube or Walmart type place?

I'm also concerned because the MIL is no longer on. I'm wondering if I could have cleared it off using the tool. This morning the engine light was no longer lit and my oil pressure guage is reading no pressure at all now.

Question 2: could it be possible to have no pressure? or like the code indicates it's just a matter of the sensor not reading the pressure?

Question 3: is it safe to operate the vehicle? I'm not going to have any money in my budget for at least another month.

Thank you.
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Old 06-12-2014, 01:40 PM   #2
maxwedge
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Re: MIL code P0523 - Engine Oil Pressure Sensor

Post the year and engine type
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Old 06-12-2014, 01:47 PM   #3
ChevyGirl71
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Re: MIL code P0523 - Engine Oil Pressure Sensor

2008 K1500 4x4 Silverado crew LT
8-5.3L
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Old 06-12-2014, 04:51 PM   #4
j cAT
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Re: MIL code P0523 - Engine Oil Pressure Sensor

Quote:
Originally Posted by ChevyGirl71 View Post
2008 K1500 4x4 Silverado crew LT
8-5.3L
most likely the wiring or the sensor is bad . this code is saying voltage/pressure way to high. I would check the wiring to it. it may have a damaged wire. then replace the sensor.

you have a 2008 5.3L ENGINE . have you read the manual for this on what type oil to use ? you best use the correct GM spec oil this engine has many issues !
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