When the problem is ongoing, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. To check for spark, pull a spark plug wire, use known good plug or tester in the boot. Ground metal part of tester to metal part of engine, watch for spark, engine cranking. With intermittent issues, you have to test when problem is ongoing. This sounds like a fuel pump or the crankshaft angle sensor has gone out. When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?
https://www.2carpros.com/articles/car-cranks-but-wont-start
Please run down this guide and report back.
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Thursday, January 12th, 2012 AT 6:49 PM