"K-Roll-PorscheTamer" (k-roll390)
09/17/2018 at 17:20 • Filed to: Car Problems
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"K-Roll-PorscheTamer" (k-roll390)
09/17/2018 at 17:20 • Filed to: Car Problems | 0
| 6 |
I now know what it’s like to blow up an ignition coil...
The 931 has had no spark since it broke down a couple months back and following the factory manual, there should be a short between the ignition coil and starter solenoid. Just to be sure the coil wasn’t the problem, I did a simple test. By connecting a wire from the battery straight to the coil, theoretically there would be no reason for the car not to get spark now because of the direct voltage source. The ignition would be consistently ON unless I disconnected the bypass.
D uring the 10-15 minute test, not only did I get no spark, on the fourth crank test, the coil just popped. That black ooze came out from a hole and made a small mess, also the coil was hotter than hell; possibly the hottest thing I’ve ever touched. I’m clueless as to why this happened so if anyone could explain where my testing went wrong, thanks.
On the bright side, once it’s replaced I can cross it off the list of potential problems.
Die-Trying
> K-Roll-PorscheTamer
09/17/2018 at 17:31 |
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most coils dont actually run a true 12 volts, and there is a voltage drop in the wiring of some sort, whether it is a resistance block, or resistor wire. 12 volts can kill a coil thats not a specifically 12 volt coil fairly quick......
Wacko
> K-Roll-PorscheTamer
09/17/2018 at 17:33 |
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Wait, nothing broken on the Ford this time, go check again just to be safe.
user314
> K-Roll-PorscheTamer
09/17/2018 at 17:34 |
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You accidentally released the magic blue smoke black ooze, without which electronics can’t function.
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K-Roll-PorscheTamer
> Die-Trying
09/17/2018 at 17:40 |
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The car does have a resistor wire to the ignition coil. Probably for this reason.....
MM54
> K-Roll-PorscheTamer
09/17/2018 at 19:19 |
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That is correct. Coils either have the resistor wire as you have or are an ‘internal ballast’ coil which just means that there is a resistor built in so the windings see less than 12V. Now you know!
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K-Roll-PorscheTamer
> MM54
09/17/2018 at 20:09 |
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And knowing is half the battle!