Out of the blue, no start - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 4 (permalink) Old 03-20-2018, 05:22 PM Thread Starter
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Out of the blue, no start

I have an 06 Cobalt LS. Only problem i have had prior to this is the cooling fan wont turn on, so it will overheat if idling for 30 min. I got into the car over the weekend and it wouldnt crank. The fuel gauge stayed on empty, i also had a message on the dash that said power steering, and another said low fuel (plenty of gas). All i heard was the solenoid click. I grumbled a minute and tried again, not even a click. It was acting the same as my monte carlo did with a security lockout, but there was no security light on the dash. I checked the solenoid by jumping the crank relay, the motor turned over like a champ. But would not start, i never heard the fuel pump prime. I have checked all of the fuses, nothing looked bad. I used a cheap obd2 scanner to check for any codes, it read u0100. I looked at the igniton start switch, since that cause a similar issue in another cobalt i used to have (Minus the trouble code). That made the security light come on. Only now it will not clear, i have tried all the reset methods i could find online, no luck. I began to wonder if it was a the ignition switch and swapped it anyway. Still cannot get the security light to go away. I only have one key, no fob, and the power locks dont work. Dealership said all recalls have been repaired on that vin number. To bring it to them, i work for a living, so i cannot afford the stealership.
Anyone have any ideas? Im ripping my hair out over this since it leaves my girl stranded at home with a 2 year old, and a 3 month old.

08 Cobalt LT2,
PERF MODS: KN&N Typhoon short-ram intake, Borla Cat-back exhaust, 17" MSR 043 rims with Federal SS-595 Tires, Eibach Sport springs (soon to install after repainted)
AUDIO: 2010 Rockford Fosgate Punch Series(RFP) 6x9 components(includes 8 tweeters) powered by a RFP p400-4 amp, 2 10" RFP P202/48 Subwoofers in a single port box. with 4AWG wiring. Powered by a Rockford Fosgate P500-2 amp. & Kenwood KDC-BT838U Reciever.
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post #2 of 4 (permalink) Old 03-20-2018, 08:51 PM
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Sounds like your battery died....

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post #3 of 4 (permalink) Old 03-21-2018, 04:04 PM Thread Starter
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Quote:
Originally Posted by Coby7 View Post
Sounds like your battery died....
I have checked the battery, it is good, tried to jump it, even put it on a charger, it said it was fully charged.

08 Cobalt LT2,
PERF MODS: KN&N Typhoon short-ram intake, Borla Cat-back exhaust, 17" MSR 043 rims with Federal SS-595 Tires, Eibach Sport springs (soon to install after repainted)
AUDIO: 2010 Rockford Fosgate Punch Series(RFP) 6x9 components(includes 8 tweeters) powered by a RFP p400-4 amp, 2 10" RFP P202/48 Subwoofers in a single port box. with 4AWG wiring. Powered by a Rockford Fosgate P500-2 amp. & Kenwood KDC-BT838U Reciever.
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post #4 of 4 (permalink) Old 03-21-2018, 04:39 PM
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Check fuses, including the one in the trunk.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
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