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LoneRanger
New Member
- Joined
- Aug 15, 2007
- Messages
- 6
- Reaction score
- 2
- Points
- 0
- Vehicle Year
- 1994
- Make / Model
- Ford
- Transmission
- Automatic
Hello. I own a 1994 Ford Ranger 4x4 with a 4.0 liter V-6, 35,000 miles. I decided to make it a show truck and took it apart right down to the frame.
I replaced, painted, or customized just about everything. Now the truck is back together and it's already won awards. The truck runs fine with no warning lights on. The one issue that I'm having is with the brake lights. I installed new LED tail-lights, but they are wired right and it appears to be related to the truck. When the truck key is off and the brake not depressed, the tail-lights are off. However, when I start the truck, brake pedal still not depressed, the brake lights come on-dim. I checked the service manual and at the brake pedal there's a wire with 2 lugs- it should have 12v all the time on one lug/side and nothing on the other unless the brake pedal is depressed. When I start the truck the other lug/side of this wire gets about 9v on it. This tells me that I'm getting feedback or interference from something and that's helping to go to the brake lights and power them before I push the brake pedal. I already checked a couple of things that are tied into this wire but it's hard to isolate each device. I even tried pulling fuses, with no luck. Any thoughts would be greatly appreciated as it makes driving the truck difficult because it looks like the brakes are on when the trucks running and when I hit the brake pedal you don't see much change=an accident waiting to happen. Thank you.
I replaced, painted, or customized just about everything. Now the truck is back together and it's already won awards. The truck runs fine with no warning lights on. The one issue that I'm having is with the brake lights. I installed new LED tail-lights, but they are wired right and it appears to be related to the truck. When the truck key is off and the brake not depressed, the tail-lights are off. However, when I start the truck, brake pedal still not depressed, the brake lights come on-dim. I checked the service manual and at the brake pedal there's a wire with 2 lugs- it should have 12v all the time on one lug/side and nothing on the other unless the brake pedal is depressed. When I start the truck the other lug/side of this wire gets about 9v on it. This tells me that I'm getting feedback or interference from something and that's helping to go to the brake lights and power them before I push the brake pedal. I already checked a couple of things that are tied into this wire but it's hard to isolate each device. I even tried pulling fuses, with no luck. Any thoughts would be greatly appreciated as it makes driving the truck difficult because it looks like the brakes are on when the trucks running and when I hit the brake pedal you don't see much change=an accident waiting to happen. Thank you.
