Oil Pressure Gauge bad?

[91sbcamaro]

Looking for a little bit of insight/help diagnosing a problem. The oil pressure gauge always reads zero, even at start up I don't see the gauge reset/move at all. This happened out of the blue, no error codes or warning lights active. Also engine has oil and runs perfect just as before.

Before I go about changing the oil pressure sensor, is there anything else that may be causing the gauge itself not work? I would assume the ECM is showing oil pressure or I would get the low oil pressure warning/code. Which makes me think its just he gauge.

Let me know anything I should check. Searching around it seems people normally have erratic oil pressure readings when the sensor goes bad, not one that just shows 0.

2007 Yukon Denali 6.2L

 

[tsuintx]

Just change the oil pressure sensor. With 99.9% certainty that's your culprit.

Not sure if there is any other way to verify it other than changing the sensor or taking it to a dealer and have them hook it up in their machines.

 

[joshcarl]

when that particular sensor goes bad, it normally reads high. very high.

 

[jstutz101]

Mine read zero the same as yours. I would just replace it and see if thats the culprit. Be sure to get the special socket to make it a little easier. I would like to smack the engineer that put the sensor where it is.... Good Luck!

 

[91sbcamaro]

I will probably end up changing it this weekend, I would have just guessed the sensor would cause a code or error rather than nothing if it shows 0.

 

[briand069]

This sounds like what my friends Denali went through. See this thread

http://www.tahoeyukonforum.com/forum/showthread.php?t=68191