Hello,
Generally speaking, an engine will need spark, fuel and compression to start.
You said you changed the timing belt, can you confirm that it was the timing belt and not the serpentine belt that runs the A/C, alternator, power steering etc.
When you turn the key, what does it do? Does it just crank over but not start?
Also, you mentioned not getting fuel. Have you confirmed this with a fuel pressure gauge?
Are you able to hear the fuel pump when the key gets turned to the on position?
Take a look at this helpful guide, it covers the typical no-start issues:
https://www.2carpros.com/articles/car-not-running-advanced
What really concerns me is the loud noise you heard before shutting off. It is possible that you have internal engine damage.
If the timing belt were to break with the engine running, it would damage the valves in the cylinder head. It can also damage the piston.
One way to check if the valves are damaged is to do a compression test on the engine.
If the valves are bent, it will have low to no compression in the cylinders.
https://www.2carpros.com/articles/how-to-test-engine-compression
Please let me know what you have been experiencing.
Thank you.
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Monday, February 7th, 2022 AT 9:21 PM