05 Chevy TrailBlazer won't start

Asked by Sissy Jun 30, 2018 at 05:12 PM about the 2005 Chevrolet Trailblazer LT 4WD

Question type: Maintenance & Repair

I have an 05 Chevy TrailBlazer it won't start
it clicks but won't start at all like it's getting
no power but I just put in a new starter a
new alternator and a new starter relay fuse
and it's still doing the same thing just
clicks but won't start ?? If anyone knows
what it could be or anything at all please
let me know this is my first car and I'm

1 Answer


Make sure battery has a full charge and battery connections all good. In the diagram you can see all the fuses, checking the fuses is great, but, also, use a test lite and check voltage on fuse circuit. Even if fuse is good, if no voltage the circuit is still dead. Do you see starter relay? Can you unplug it? The reason I asked, the diagram for the relay doesn't show any terminal numbers, sometimes that means the relay is soldered into the fuse box, and you can't pull it out. Two voltage circuits at starter terminal, one is hot all the time, comes from battery. The other circuit goes hot with key in the crank position and the relay is energized. The starter motor should ground through the engine block. Any testing at starter motor make sure tranny is in park or neutral and parking brake is set.

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