V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

04 mustang 3.9 conv

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Old 08-30-2017, 09:52 AM
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Ryuna
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Default 04 mustang 3.9 conv

need help. Just got this mustang. Several weird things going on.

1. Battery drains after 24 hrs
2. Dashes on odometer display when car is OFF
3. When headlights are on. Reverse lights come on
4. When car is in reverse. All of the parking lights. Front and back come on
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Old 08-30-2017, 10:37 AM
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Ryuna
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Also the rear defrost button turns on the parking lights too


Originally Posted by Ryuna
need help. Just got this mustang. Several weird things going on.

1. Battery drains after 24 hrs
2. Dashes on odometer display when car is OFF
3. When headlights are on. Reverse lights come on
4. When car is in reverse. All of the parking lights. Front and back come on
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Old 08-30-2017, 01:30 PM
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Derf00
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You have some electrical shorts somewhere. Check the fuse boxes in the engine bay and inside the car.

With an older convertible it's possible it had a leak or leaks or the owner left the top down during rain on one or more occasions.
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