a stall and alternator warning light

phreaddy

Veteran Member
Joined
Jul 31, 2009
Location
Houston, TX
TDI
2015 Golf hatchback (purchased used in December 2021 to replace the 2015 Sportwagen (purchased new in Sept. 2017) that I totalled. :( Former TDIs: 2006 Jetta sedan (FLOODED -- Thanks, Hurricane Harvey); 2009 JSW (FLOODED-- thanks, Hurricane Harvey!)
Anyone have any ideas?

My 09 stalled without warning this morning. The alternator warning light came on. Then it started again with no issue and the light did not come on again.

This was when the engine was "cold" (in 90-degree weather) after being driven about a third of a mile, stopping at an intersection and starting again on a bit of an incline. There's never been any acceleration hesitation. All filters have been replaced on time and fairly recently within the last couple thousand miles.

The battery is about 6 months old. I had the battery, starter and charging system tested at an auto parts store, and they said they were all fine.

A mechanic (not my normal one) said it could be the fuel pump or the crankshaft position sensor.

TIA!
 
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