2011 Yukon Denali 6.2 Check Engine Light

[Primetimeups]

Hi, I have a 2011 Yukon Denali 6.2 the check engine light was on when I pulled into garage. I checked it was for an Oil Sensors on the top in the back on drivers side of the engine. I had to replace the Engine Oil Cooler lines and did so. It will not start now, shot a little ether into air tube not fire, check for broken ground and saw none, no blown fuses under the hood and no new codes on my code reader which is not an OB II. Any Idea how I get this running again?

Edited January 12, 2025 by 99silveradoz71

[asilverblazer]

3 hours ago, Primetimeups said:

Hi, I have a 2011 Yukon Denali 6.2 the check engine light was on when I pulled into garage. I checked it was for an Oil Sensors on the top in the back on drivers side of the engine. I had to replace the Engine Oil Cooler lines and did so. It will not start now, shot a little ether into air tube not fire, check for broken ground and saw none, no blown fuses under the hood and no new codes on my code reader which is not an OB II. Any Idea how I get this running again?

What was the initial code?

You replaced the oil pressure sensor?

Why did the oil cooler lines need replaced?

 

It sounds like you describe the engine turning over freely, and spraying starting fluid into the intake doesn't cause an attempt to start either. If that is accurate - you need to see why ignition isn't firing. 

[Primetimeups]

1 hour ago, asilverblazer said:

What was the initial code?

You replaced the oil pressure sensor?

Why did the oil cooler lines need replaced?

 

It sounds like you describe the engine turning over freely, and spraying starting fluid into the intake doesn't cause an attempt to start either. If that is accurate - you need to see why ignition isn't firing. 

The code for oil preasure sensor, 530 If I remember right no i did not replace the sensor was going to have someone else do the sensor... Lines were getting bad replaced before a leak happened. I'm not getting ignition and don't know why.

[asilverblazer]

Unhook the battery for a few minutes and reconnect. 

 

Confirm no spark with a spark tester.

[Jsdirt]

On 1/9/2025 at 10:39 AM, Primetimeups said:

Hi, I have a 2011 Yukon Denali 6.2 the check engine light was on when I pulled into garage. I checked it was for an Oil Sensors on the top in the back on drivers side of the engine. I had to replace the Engine Oil Cooler lines and did so. It will not start now, shot a little ether into air tube not fire, check for broken ground and saw none, no blown fuses under the hood and no new codes on my code reader which is not an OB II. Any Idea how I get this running again?

Sounds like you need to go back over your work and look for a damaged wire or wires. Might have got pinched, broken, pulled, etc.. Wire quality isn't GM's strong suit the past 18 years, so it's very easy to "install" problems.