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My 2005 Yukon XL

Well we will see how this unit holds up. I've got to go to another O'Reillys and grab a second one.
20251112_153217.jpg

Also may have struck a deal on the parts truck I got the front differential from. Hope to harvest the steering gear and pump from it.
 
DieselSlug said:
Had a code come up yesterday, P0137 bank 1 sensor 2. Not sure if I have ever replaced that O2, will have to inspect closer.
Click to expand...
Yep, I did previously replace it. With supposed Genuine GM. First was replaced in July 2024 and the second was October 2024 (both banks).

Need to get the scanner hooked up and see what the voltage output is before I order another. Of course its a week to get another OEM unit. Was thinking about trying an NTK, which supposedly is NGK and I can get that locally. Strange thing is NTK only has a single part number for up and down streams. That just doesn't sit well with me.

And I got the 2nd fan controller:
20251118_162036.jpg
 
Had a click, no crank, no start. Upon further inspection arcing at the starter solenoid. Cleaned up all connections and douched in Fluid Film. NY is why we can't have nice things.
20251122_115019.jpg

All is well in life again.
Screenshot_20251123_190458_Gallery.jpg

Also swapped out the B1S2 with another delco after reading the live data. Nice relatively flat graph with the new sensor. Will see once the monitors run again.
 
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