Mechanics

HUMMER H3 ALTERNATOR PROBLEM

2007 Hummer H3

Engine Mechanical problem
2007 Hummer H3 6 cyl Four Wheel Drive Automatic 29,000 miles

My H3 died at a stoplight this morning. Why would it die? It restarted. Could it be alternator or belt problem? Help me please-so far it has been perfect and now I am freaking out. Thanx !
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Ozzy765
March 18, 2010.



A couple of possibilities exist, a crank sensor faulty, or I have seen a faulty PCM cause a stall. If it was a belt or alternator, and made it to the point of stall, it would not have restarted. If your mileage, and year are correct, you should still be under warranty.

Factoryjack
Mar 18, 2010.