No oil pressure on start up.

[Fless]

This. Especially with how cheap they are, they're always handy. It's been a while since I've researched, but, last I knew, it seemed that the ~20-$40 bluetooth dongles that synched with your phone were some of the best options as far as capabilities.

You could set it up, pull up the oil pressure display, hold your phone next to your gauge cluster and start the engine. If the gauge shows "0" but the PCM is reporting normal pressure, then you've found your problem.

*EDIT* I think the "Torque" app is what the cool kids are using these days.

^^ THIS. Don't look at codes, look at live data. There should be lots to see, like engine coolant temp, oil pressure, etc.

Torque Pro ($4.95 on Google Play) is the way to go with the OBD dongles.

EDIT: Torque Lite might even show oil pressure, it's free on Google Play.

 

[richs1]

I use Torque, my cool kids use something compatible with their apple phones! LOL

I need to know what they are using, I need one.

 

[Blackcar]

You might want to read this article.https://www.noln.net/articles/2223-low-oil-pressure-message-locating-the-mystery-filter

 

[Blackcar]

You might read this article. https://www.noln.net/articles/2223-low-oil-pressure-message-locating-the-mystery-filter

 

[richs1]

You might read this article. https://www.noln.net/articles/2223-low-oil-pressure-message-locating-the-mystery-filter

Sending unit and screen were just replaced last weekend. Still have the issue.

 

[richs1]

Just replaced the oil pump on my 2011 Z71. Not the same issue just very low pressure(below 20). 165000 on that one. This one has 114,000 miles.

 

[iamdub]

Just replaced the oil pump on my 2011 Z71. Not the same issue just very low pressure(below 20). 165000 on that one. This one has 114,000 miles.

My next guess with yours was gonna be a failing/failed O-ring. It might have a slight split that could intermittently allow air in that pickup tube, which would let the oil pump lose prime.

 

[richs1]

My next guess with yours was gonna be a failing/failed O-ring. It might have a slight split that could intermittently allow air in that pickup tube, which would let the oil pump lose prime.

I’m thinking that is going to be the issue, if I am dropping the oil pan on this one, I’m putting in a new pump along with the o ring

 

[donjetman]

Pump is not in the oil pan, its under the timing cover.

 

[richs1]

True, but you have to drop the oil pan to get it out, at least I did on my 2011 Z71