Trailblazer won't start.

Asked by Feb 21, 2016 at 12:05 AM about the 2003 Chevrolet TrailBlazer EXT LT SUV

Question type: Maintenance & Repair

After changing the radio trailblazer wouldn't start. It started right before I
reinstalled the dash but after I put everything back together it wouldn't start. All
lights work radio but nothing when the key is turned.

1 Answer

5,915

check the battery voltage....should be 12.5 volts and the age should be newer then ten years old...the connections should be free of corrosion...disassemble and wirebrush them clean~ check the ground connection at the radio~ think about your troubles are related to the ground of the car....one insufficient voltage, chassis NOT grounded....good luck...you will find the trouble..it's ground related~

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