A faulty fuel pump will make a 1996 Chevy Tahoe hard to start after it sets for a few hours. The pump can allow fuel to leak back into the gas tank and starve the engine for fuel.
it's time for a tune up, I've owned two 1997 Chevy tahoes and both times spark plug and wires and distribitor cap replacement fixed the starting problem both times.
check for spark
Replace the coolant temp sensor.
This is a safety feature.
fuel fliter maybe?
how to start a 1993 chevy tahoe without a key
Does it have fuel, spark, compression?
do you mean it cranks, but will not start?
Maybe your fuel pump
There can be many reasons why a 1997 Chevy Tahoe will not start after sitting for three days. Reasons include a dead battery, a bad starter, a bad alternator, a loose wire, and no gas.
Chevy Tahoe
possiblly the starter or fuel pump is out.
Check battery earth connection.
If one is in the market to purchase a 2033 Chevy Tahoe there are many options available to help find one. Places like Kijiji, Craigslist and Auto Traders are excellent places to start.
Start with changing the fuel filter.
More than likely a direct short circuit.
Turn your key to the run position without attempting to crank. Leave it in this position for about 10 seconds. If your Tahoe is equipped with the battery meter, let the meter reach its peak. Then attemp to start.