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a friends 85 bronco died on his way to my house. We towed it here, and this is what i have found.
When to turn the key to start, the truck fires right up, but as soon as you let go of the key, it dies. It appears everything under the hood is plugged in as it should be, but its not mine so i cannot be 100% sure. As a "test" i had him turn the key to the start position and hold it there, and I disconnected the wire to the solenoid so the started would not keep running. The truck ran fine, and when he let the key go back to run, it kept running fine. As soon as i plugged the starter wire back into the solenoid ( the trigger wire) it stumbles and dies off. Now dont laugh at me here, but, I figured ok, well, if it runs fine with the trigger wire off, what the hell, i will hot wire it so he can drive home. Long and short of it, I used his horn wire to plug in as a trigger. So, now he turns the key to start and hits the horn, the rig starts and runs fine. Well, so i thought. As soon as you put it in gear to go home, it died. Will start right back up, but when you put it in anything other than park or nuetral, it dies. Obviously there is some sensor, wire, or something out there in the system telling the computer to shut her down. Do you guys have any clue?
When to turn the key to start, the truck fires right up, but as soon as you let go of the key, it dies. It appears everything under the hood is plugged in as it should be, but its not mine so i cannot be 100% sure. As a "test" i had him turn the key to the start position and hold it there, and I disconnected the wire to the solenoid so the started would not keep running. The truck ran fine, and when he let the key go back to run, it kept running fine. As soon as i plugged the starter wire back into the solenoid ( the trigger wire) it stumbles and dies off. Now dont laugh at me here, but, I figured ok, well, if it runs fine with the trigger wire off, what the hell, i will hot wire it so he can drive home. Long and short of it, I used his horn wire to plug in as a trigger. So, now he turns the key to start and hits the horn, the rig starts and runs fine. Well, so i thought. As soon as you put it in gear to go home, it died. Will start right back up, but when you put it in anything other than park or nuetral, it dies. Obviously there is some sensor, wire, or something out there in the system telling the computer to shut her down. Do you guys have any clue?
