My chevy 2004 trailblazers wont start

Asked by Keisha Jan 08, 2020 at 07:40 AM about the 2004 Chevrolet Trailblazer EXT LT 4WD

Question type: Maintenance & Repair

My 2004 Chevrolet trailblazer ext lt wont start I have
replace the alternator  and the battery  the dash light
come on but it wont start.

5 Answers

26,640

Are you saying, it cranks good but won't start, or the starter motor won't even crank the engine? The diagnostics are different depending on the issue? I'm just trying to get on the same page. I posted the diagram for your starter motor circuit, but, I'm not sure that's what you need?

When I turn the key to start the truck everything comes on but the engine,I'm unsure if it's the starter one we. Change the battery it started by mistake my son cut if off now it wont start again. When I turn the key I hear a click where they relay starter is .

26,640

Replacing components won't do any good if something wrong with wiring circuits? If you can unplug starter relay, you can do testing, there. Any testing, make sure transmission is in park or neutral and parking brake is set. can you read and understand the wiring diagram, I posted?

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