Car wont start coil packs melted together?

220,000 MILES • AUTOMATIC
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MZZZZMARY13
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  • 2 POSTS
I had a coil pack connector br apart while driving. Entire harness for coil packs was basically melted together without visual melting. I found an excellent harness. Still no start. Unplugged failure sensor and with voltmeter had 12.5 v on pink wire. .28 v on orange wire. 9.89v on yellow wire. Unplugged coil pack 2 connector no difference. Unplugged both coil pack connectors and no longer had voltage to orange wire on failure sensor connector. Crankshaft sensor I had replaced just before and I exchanged it for another one after electrical issues. All fuses and relays seem to test ok. What can I do to get this car to start. Tach does not move at all when trying to start. And check engine light is working and all sash lights are working also. Suddenly though I no longer hear fuel pump kick on.
Oct 26, 2026 at 9:11 PM
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BENNETTLYLE
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  • 14 POSTS
Is yours the 2.4L or 2.7L? T
Oct 28, 2026 at 1:38 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
So, the ignition coil sounds like one of them shorted out or the the ignition fail sensor is bad, we should run the codes to give us a clue on what the problem is here is a video to help us get started.

https://www.youtube.com/watch?v=LBCpCWEFnTg

Here is the wiring diagrams for the engine coil to make sure they are wired correctly.
Oct 28, 2026 at 8:17 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
You may have a crankshaft sensor that has shorted out here is the location so you can check it out. How does the engine sound while cranking, can you please upload a short video?
Oct 28, 2026 at 8:20 AM
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MZZZZMARY13
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I thank you for that info. I have already been able to start the vehicle. Had nothing to do with my timing. I was right in with that. I reinstalled original coil packs and removed a few more areas of brittle and stuff wiring! Thank you for responding!
Nov 1, 2026 at 8:45 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
You are welcome, so is the problem fixed?
Nov 2, 2026 at 6:33 AM
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