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Electrical issue

Tiny
SWULLY1976
  • MEMBER
  • 1968 CHEVROLET CORVETTE
  • 5.3L
  • V8
  • 2WD
  • MANUAL
  • 37,000 MILES
I left key in on position all night until battery drained out. Jumped battery next morning and now engine will not start and when it does it spits and sputters and back fires. Up until this matter the engine ran like a champ.
Friday, August 11th, 2017 AT 6:53 PM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,444 POSTS
If this is a base model with points ignition, check the points, condenser and coil. Leaving the key on with points will do damage if they are closed.
If it has the transistor ignition, check the pulse amplifier and coil, for the same reason.
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Friday, August 11th, 2017 AT 7:17 PM
Tiny
SWULLY1976
  • MEMBER
  • 2 POSTS
It does not have points or condenser, but was thinking the same thing problem is under distributor cap. Yep, I was thinking with voltage going to components all night it fried something like I said it ran like a champ until this happened. Thanks a lot for your time and wisdom.
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Friday, August 11th, 2017 AT 7:33 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,444 POSTS
Yeah, the pulse amplifiers do not like it when the transistors are held in a constant on state.
Good luck and enjoy that vehicle.
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Sunday, August 13th, 2017 AT 11:19 AM

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