2010 LUCERNE CXL 3.9 OIL PRESSURE SENSOR

[Ossie]

No check engine light but my scanner shows high VOLTAGE, yep voltage. The GM shop manual is useless. It shows a 3500, whatever that may be, and a 4.6. YOUTUBE is no help. Looks like the starter has to be removed which requires removal of the motor mount.
Any thoughts or experience with this problem?

 

[2007LucerneCXL]

The Chilton online manual may help, scroll down for login.

McDowell County Public Library - Chilton Auto Repair

mcdowellpubliclibrary.org

 

[Ossie]

Thank you for the reply yesterday and today.
I,'m hoping the sensor is toward the right side wheel. This picture is different from any others I have seen. I used a camera yesterday to look around the filter area but didn't see it. I'll look again today.
Is the photo for a 3.9 engine? The worthless GM shop manual shows a 3500 engine which is not what I have.

 

[2007LucerneCXL]

Yes 3.9L, I have the 3.8L so no experience, but some have posted it can be done without removing the starter by removing the filter bracket but I can't confirm.

 

[Ossie]

Yes 3.9L, I have the 3.8L so no experience, but some have posted it can be done without removing the starter by removing the filter bracket but I can't confirm.

The 3.8 is a different animal from the 3.9. I found the sensor by using my camera with a wobble end. The sensor is hidden by the starter so there is no way to access the harness connector or put a socket on the sensor. Labor is 4 hours so it will cost me around $400.00 to have the $20.00 part replaced. ENDURANCE (waste of money) doesn't cover THIS sensor.
I'm having a bit of trouble with the Verification screen on this site.

 

[G-55995]

I’ve changed the oil pressure sensor on my 3.9 L from underneath. I take off the heat shield on the exhaust manifold, then take off the front motor mount, then you can reach up in there and get a socket on it.