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1994.5 weird electrical issue

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Old Jul 18, 2023 | 10:08 AM
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1994.5 weird electrical issue

So two real issues are going on here. Yesterday I came out to my 7.3 and the lights are acting weird. The headlights are no longer staying on with the parking lights, it's either one or the other (you CAN have them both on at the same time if you get the switch sitting jusssst in the right spot, but it usually doesn't stay there) I figured this issue was something wrong with the headlight switch, so I replaced it. But it's still exactly the same, headlights only or parking lights only. Soon after on the way road again, the brake lights and turn signals started acting up! Now the turn signals are being cancelled out by the brake lights (turn signals work, but when you hit the brakes they stop flashing) this truck does have trailer wiring, could these trailer wires be interfering with the taillights in some capacity?
 
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Old Jul 18, 2023 | 10:15 AM
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From: Bahstun
Check trailer plugs for water.
I have two, you might also.
 
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Old Jul 19, 2023 | 06:03 AM
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Could be a bad ground.
 
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