84 mustang 302 - Vintage Mustang Forums
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post #1 of 5 (permalink) Old 03-01-2018, 09:43 PM Thread Starter
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84 mustang 302

I have a 1984 302 convertible with a problem. It will quit when, for example, driving over RR tracks. When I raise the hood the under hood light will be out. If I shake the wires near the solenoid the light will come on and the engine will restart. I've replaced the solenoid but that has not fixed the problem. I noticed a large wiring harness connector near the solenoid that is also wiggling when I shake the wires. Is there any way to determine if this connector is the cause of this intermittent problem ?


Last edited by bigstar; 03-02-2018 at 03:15 PM.
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post #2 of 5 (permalink) Old 03-08-2018, 10:20 AM
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Start by making sure all your connections are tight between your battery and the starting/charging system. Check for corrosion on any of the connectors as well.
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post #3 of 5 (permalink) Old 03-08-2018, 10:32 AM
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I would also check all your grounds. Negative battery cable to Body and Engine block, Engine block to Body and I believe there is one from the transmission to the body as well on the foxbody's(I could be wrong here).

Remove and clean all connections (bare metal) and tighten again.
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post #4 of 5 (permalink) Old 03-08-2018, 01:23 PM
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I had and open tracked a 83 GT for several years. I remember having some issues with some of the pins in the connectors having lose connections. So along with the suggestions already made, check the connector pin to wire conn connections with a Ohm Meter while moving the wire around.

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post #5 of 5 (permalink) Old 03-15-2018, 01:55 AM
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Not sure if it's the same on yours as my 88 but by the wiring harness under the solenoid, closer to the battery, there is a 2pc connector. If not connected it will ground to your computer and the car will not start. I believe some lights are also affected but not sure. It's probably no it fully clipped in or the clips that keep it together are broken and it wiggles or come slightly apart over bumps. Lmk how close I am.

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