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Intermittent starting problem

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Old Jun 9, 2018 | 10:24 AM
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Default Intermittent starting problem

I have a 2005 C6 base with Z51 option. Love the car and
It generally runs like a thoroughbred. However, on occasion it won’t start...won’t turn over at all. Completely arbitrary on when this might happen.
Yesterday I backed the car out of the garage, shut it down to get out and close the garage door (I have the newer visor mounted opener and have yet to find the secret to programming it to my Chamberlain opener) and when I got back in the car and pressed the start button, nothing but a CEL. DIC showed 12.6v. Multimeter on the battery showed 13.5v. I checked fuses, fiddled with the ground cable and went thru the starting procedure again (put tranny in reverse, back to neutral, press clutch pedal, press start button). Nothing. Dead.
Grabbed a 10mm socket and disconnected the ground cable from the battery. Left it off for about 20 seconds and reconnected. VOILA. She starts!
Thus far, this has only happened in my garage or driveway but my fear is it happening elsewhere. Don’t want to be in the habit of carrying a small toolkit with me (my days of driving and fixing Triumph Spitfires are long gone).
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Old Jun 9, 2018 | 10:47 AM
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Mine did the same one day at work. Dicked around in the parking lot for an hour trying to find something loose and gave up. Craigslist tow guy for $40 home. Rebooted the computers by disconnecting the battery for a bit and she's been fine since

I keep a 10mm wrench in the center console now
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Old Jun 9, 2018 | 07:09 PM
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Any clicking noises under the hood when you try to start it up?
If so, it could be the dreaded started solenoid issue...
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Old Jun 9, 2018 | 09:17 PM
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Nope. If it clicked I would go to the solenoid. No sounds at all. And the dash just gives the CEL, no other lights (although the DIC and odometer work).
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Old Jun 10, 2018 | 11:53 AM
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it's been an ongoing problem for me too I keep a 10mm socket in the armrest
doesnt happen often when it does I just disconnect the battery for a few seconds. I forgot
the code but I believe it's for the throttle body. I doubt it's the throttle body I replaced it for a new ported one but I still have the intermittent starting problem
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