yes the map sensor will keep the car from running.map stands for manifold air pressure and if the ecu cant get a reading it will not start and run.
A bad Mass airflow sensor - on any GM vehicle that is equipped with one - will DEFINITELY stop the engine from running.
The engine would be running poorly and the check engine light should be illuminated with related codes.
It could keep the engine from running, but not the valves from moving.
more likely to be a faulty coolant sensor or the thermostat is faulty and staying open
NO. That means the engine is running too hot. Check cooling system.
Air conditioner or defroster on - normal should be running Vehicle low on coolant? Trying to keep engine in normal range Defective coolant sensor?
if your fuel pressure is still good i would replace the crankshaft position sensor , it is located behind the crankshaft pulley, you will have to pull it with a puller.
I would start off by checking the crank shaft sensor when this sensor goes out the plugs will not fire.
Have you had the coolant temp sensor checked? It might be that the engine is running hot but the sensor isn't showing the temp is hot.
No it will not.
There is a sensor on most modern cars which turns on the fan when the coolant temperature reaches a certain value. If this sensor is bad, the fan may run continously.
On the driverside firewall is first place I would look