Why won't my 2003 Chevy Blazer start if my back hatch is unlocked???
What is your question?
This started 2 yrs ago I never locked because the fob doesn't work. One day it wouldn't start and a neighbor said he'd look at it ...well he got it to start and it has ever since but my hatched locked... So my granddaughter crawled in the back .and unlocked my hatch I shut it unlocked ,.....car doesn't start locked it it started right up. There is also a blue wire coming out frm under the hood where the dash would be that is jammed in with the ignition fuse 3.machanics have no clue n it's.drivng me nuts!!! Thank u
What makes this problem better or worse?
I don't even know how.to answer that .....
How long has your 2003 Chevrolet Trailblazer had this problem?
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Hi, this is Bo, an auto expert on RepairPal's Car Genius team!
Well, this is a head-scratcher! Your Blazer’s got some quirky wiring, that's for sure. Sounds like someone's done a bit of a DIY fix under the hood. That blue wire jammed into the ignition fuse is a big clue. It’s likely creating a weird electrical loop that's tied into your back hatch somehow.
When the hatch is unlocked, it might be causing an open circuit or triggering some security feature that's preventing the car from starting. This could be a safety measure or an electrical quirk.
To sort this out, you’ll probably need a deep dive into the wiring. If three mechanics couldn't figure it out, it might be worth finding an automotive electrician. They can trace the wiring, find out what that blue wire's all about, and get things back to normal.
In the meantime, keep the hatch locked to avoid any more starting woes. Good luck, and I hope you get to the bottom of this mystery!
If you need more advice, have other questions, or need to find a certified repair shop in your area, just let me know! Call us at 877-913-1554, and we'll gladly find you a certified RepairPal shop in your area!
