2016 Tahoe LTZ 140k - Houston TX

Fless said:

Does "loss of power" mean the engine dies, or just limp mode?

For example, if my body loses power it can mean that I got weak, or that I died.

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tom3 said:

When it quits do you lose electrical power? Or does the engine just shut down.

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Apple Pie said:

Years ago, I had a similar problem. There was a ceramic post to fasten the ground wire that had a hairline crack. You could not see it and it functioned while the car was running in the shop. When driving, the slightest bump in the road caused it to lose continuity to the electrical system because the ceramic insulator would open just enough to short out the system and then go back to looking ok and you could start it again. Just sayin’.

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houstontaylor said:

I have heard of that happening with a corroded engine ground cable.

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tom3 said:

When it does this I'd turn on the headlights manually for loading and indication, leave doors open, then get under the hood and start twisting wires while looking at the lights shining, not shining, on the wall or something. When you find it you'll know it.

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tom3 said:

When it does this I'd turn on the headlights manually for loading and indication, leave doors open, then get under the hood and start twisting wires while looking at the lights shining, not shining, on the wall or something. When you find it you'll know it.

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Fless said:

When the dash errors show up, there will be some kind of a code; after the fact it could be a "stored" code or lost. You may want to have a good scan tool handy to read the code(s) when it happens, then get a copy of the freeze frame data (your code reader needs to be able to do this).



When it "loses power" do you mean that the engine dies? If not that, can you describe in more detail what happens?

Also, while you're waiting for it to restart, will it crank and not fire? Or does it just not crank? How long is the wait?

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