Today I had this problem. First time. I drove my car 15 miles from work today, and stopped at the local communications store. In there for 5 min. Came out to start the car, and no start. The engine cranked, but didn't start. It cranked like the timing chain or belt broke. Fast. After about 10 min I tried again. VROOM. Good i said, and drove home. About 1 mile. Shut the car off, and proceeded to start again. Not hapenning. Same symptom. Waited 10 min again, and VROOM again. I have checked all fluids, and they are good, and have new plugs, cap and rotor. The car has the original fuel pump. Not to bad for 2220000 miles on it. I have no vacume leaks, but was hearing a weird knock tapping sound, from the lower front of the block. This has been happening for about 6 months now. It doesn't sound like a rod knock. Possible oil pump? I have an EAT chip, and run 93oct fuel. I'm thinking the fuel pump has had enough.

Does anyone have any possible Ideas?
Thanks in advance .........Felix