Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hi there, I am Cam.So on your Trailblazer, do you get a flashing passlock or the lock through a vehicle symbol flashing all the time when you try to start? If you have someone feeling the starter relay in the underhood fuse block when you do try to start, does that relay click?
Ok so this rules out security. If the relay is clicking then your computer system is trying to operate the starter. That tells me this is most likely a burnt fuse, bad relay or a bad starter. Verify your fuses, swap the relay for another from the fuse block with the same numbers, and if that does not work, then your starter is likely bad. Myself I would try hitting the starter housing to jog the starter to work again. If that works then it only confirms a bad starter.
Im not sure what you typed there. Can you rephrase that please.
Ok, Does the dash show PARK?
How about the lock through a car symbol or the word security, do either of those flash all the time on the dash?
Ok and the check engine light is on?
Have you tried starting in neutral?
Which engine is in your vehicle?
Ok, check the CRANK Fuse, #17 and fuse #22 in the under hood fuse block please. Can you see if those get power either with the key on or the key in start please?
Does 17 get power with the key in start?Also if you remove the starter relay and use a wire to manually connect the pins 30 to 87 using the numbers stamped on the bottom of the relay, does the starter turn?
I am honestly thinking that your starter may indeed have failed and if this does not make the starter turn, then I would test for power on the small wire at the starter to verify power is getting there. If so, and it would only be with the key in crank, then your starter is bad. These are known for bad starters.Please take a moment to rate my service. I will be available for follow up questions should you have any.
I am here now. Did you happen to hit any connectors when you did the change out?Are any of the lights acting differently?Did you jumper the starter relay pins prior to changing the starter?