Why did my Jetta stall?

2000 VOLKSWAGEN JETTA
152,000 MILES
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SAXOPHONEHERO11
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My 2000 1.8L T Jetta recently stalled; on two prior instances the car had stalled but started back up immediately, so I passed it off as just listening to the radio with the car off too much. However now it is on the side of the road not starting. The battery is fine along with the spark plugs. There is plenty of gas, clean oil, and radiator fluid. Please help.
Apr 16, 2012 at 9:11 PM
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FIXITMR
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did you say it has spark at plugs?
Apr 16, 2012 at 9:15 PM
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SAXOPHONEHERO11
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Yes all 4 have been replace within the last 20,000 miles
Apr 17, 2012 at 3:30 AM
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SAXOPHONEHERO11
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After sitting for several hours, the car started up first try with no problem. I proceeded to turn it off and start it again, and again it started on the first try.
Apr 17, 2012 at 3:49 AM
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FIXITMR
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i meant did you check for spark?
Apr 17, 2012 at 3:49 AM
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EXOVCDS
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Engine speed sensor (crankshaft position sensor) or ECM Relay... either one will cause the engine to stall/quit, or NOT start when
the part is acting up.

The Crankshaft Sensor usually fails when the engine is hot and then
works again when the engine is cold... when it fails completely, it
won't work when cold either.

When the ECM relay fails, the "Check Engine Light" in the dash will
not come ON (when the key is in the ON position).

The next time the engine does not start, check to see if the "Check
Engine Light" is ON, when the KEY is in the ON position.

Thomas
Apr 18, 2012 at 7:34 PM
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SAXOPHONEHERO11
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Took it to a mechanic, luckily it would not start for them; they determined that it was the crankshaft sensor. They replaced that, the spark plugs, and all of the filters. Thank you both very much.
Apr 27, 2012 at 12:00 PM
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