started my 99 tahoe about 5am started fine and drove it the day before multiple times and it was starting fine than after i started it at 5 am cause it was so cold outside it sat till about 2:30 pm now it wont turn over anymore tried jumping it since i thought might be battery but nothing it doesn’t even try to do anything

 

Welcome to the forum. I'm moving your post to the Tahoe section of the Forum where it will get more views.

 

Assuming that the battery cables and battery terminals are clean and tight: (1) Post voltage across the battery terminals. (2) Then measure/post that same voltage across the battery terminals while the key is turned to the "Start" position for 5 seconds.

This would apply to any vehicle....No DC voltmeter/multimeter??? GET ONE, or have it towed to a shop.

 

My '99 Yukon. same drivetrain, the braided connector from the starter motor to its solenoid corroded away on me causing a no start. Salt zone driving got to it.

 

Drove my 93 Sub to the hardware store, time to go home and nothing turning the key. Found a wire had broken off the starter.

 

Mid-2021, my own 1988 Mazda truck was having similar intermittent no-cranking situation, otherwise cranked started fine. I TESTED its clutch pedal safety switch (fine) and the ignition switch (fine), cleaned the battery terminals again, even swapped out my 34-month old battery for a brand-new one as it had 2-months remaining on replacement warranty. None of these fixed the intermittent cranking issues.

The fix? I took off the negative cable attachments to the engine, the body, and frame and cleaned everything up with wire wheel/drill, steel wool, etc., and reconnected. All fixed, 6 months now and no more failure to crank/start.