2019 yukon xl No Start

[Fless]

Funny what can be found using some g00gle-fu.

 

[Dannyo]

I went ahead and bypass the starter relay, only got a click from the starter. I tried a few times and heard one click each time I jumper across the two terminals. So does that mean the starter needs replacing?

 

[Dannyo]

I opted to replace the starter. It worked after the replacement. It was an easy install.

Once I did the starter relay bypass test, I knew it had to be the starter as the batter was tested successfully.

Hope this helps the next one with the same issue.

Thanks everyone for your help!

Dannyo

 

[Doubeleive]

I opted to replace the starter. It worked after the replacement. It was an easy install.

Once I did the starter relay bypass test, I knew it had to be the starter as the batter was tested successfully.

Hope this helps the next one with the same issue.

Thanks everyone for your help!

Dannyo

to circle back on that. bypassing the relay would indicate 2 things either bad starter or low voltage to the starter.
you could then do a voltage drop test and/or pull the starter and do a bench test by applying 12v directly to the starter.
many autoparts stores offer free starter testing as well
if the starter then passes testing and voltage is good, then you have to look at things like starter alignment with the flexplate which is often fixed with a spacer
and then it progresses to is the engine seized? it just goes step by step.
glad you got it sorted out.

 

[T_Brad]

Just wanted to jump back on here and update. All of the extra diagnostics were for nothing. It was the starter. Turns out that the wiring harness to the starter solenoid had a small piece of the retainer clip that had broken off and lodged in the female connection side and was preventing contact. Way back in the process, after I had replaced the starter and was still having issues, I had pulled the wheel and wheel well so I could get a good look at the starter and test voltage, resistance, and grounding. I had originally changed it blind from underneath and knew the retainer clip had busted when removing the harness. The harness was pulled but I didn't actually look inside it. I did my testing and repalced it and had a nice solid "click" to know it was connected securely.

After I reached the end of my capabilities without having and OBD2 Scanner, I hauled it in to a mechanic. He said he literally pulled the harness off and when he did the plastic piece fell out. He plugged it back in and it fired right up. I still wake up in the morning in disbelief on all the stuff I looked at as potential problems when it turned out to be the starter after all.

 

[Geotrash]

Just wanted to jump back on here and update. All of the extra diagnostics were for nothing. It was the starter. Turns out that the wiring harness to the starter solenoid had a small piece of the retainer clip that had broken off and lodged in the female connection side and was preventing contact. Way back in the process, after I had replaced the starter and was still having issues, I had pulled the wheel and wheel well so I could get a good look at the starter and test voltage, resistance, and grounding. I had originally changed it blind from underneath and knew the retainer clip had busted when removing the harness. The harness was pulled but I didn't actually look inside it. I did my testing and repalced it and had a nice solid "click" to know it was connected securely.

After I reached the end of my capabilities without having and OBD2 Scanner, I hauled it in to a mechanic. He said he literally pulled the harness off and when he did the plastic piece fell out. He plugged it back in and it fired right up. I still wake up in the morning in disbelief on all the stuff I looked at as potential problems when it turned out to be the starter after all.

Thanks for coming back to update this thread with these details. It will help other members here in the future. And I think most of us have stories just like this. In my case it was lifter trays - I had 2 cam failures before I discovered it was cheap aftermarket lifter trays (sold to me as being OEM, but weren't) that were allowing the lifters to twist just enough to be damaged and in turn damage the cams. I troubleshot for weeks until I figured out what was happening.