Q: it rolls over, but won't start? what could it be?

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It rolls over, but won't start. What could it be?
My car has an automatic transmission.

Hi there. A no start condition can be caused by a number of things. Your engine needs spark, air, and fuel to run. If there is no spark, then it could be a faulty ignition coil, crankshaft sensor, even a faulty engine control unit. Lack of fuel can be caused by a faulty fuel pump/relay, or even a faulty crank sensor. I recommend having a technician diagnose the start issue so that this can be corrected appropriately.

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