ignition blues
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ignition blues
i have a 1993 ford explorer i have replaced the starter solenoid and replaced the nuetral start switch and also replaced the electronic ignition switch.The truck wont start with key but will start by jumping the solenoid? Any help would be appreciated!
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Joined: Dec 2001
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From: UT
Do you have a wiring diagram? The one I have isn't real good for the starter circuits, but here's what I can pick out. When you turn the key to start:
1) This completes the circuit for the starter relay. Park neutral position switch or clutch position switch are a part of this circuit.
2) The other side of the relay closes, sending current to the starter relay on the starter motor.
3) This closes the main starter "switch" inside the starter which completes the starting circuit.
4) The starter motor runs.
From what I understand, you've replaced the components that make up steps 1 and 2. The fact that you can short out the solenoid on the fender to get it to start means that 3 and 4 can work when they get the proper signal. This means to me that there almost has to be a broken wire/connection in the circuit that performs step 1. This probably means, as tedious as it is, you'll need to trace wires (get a good wiring diagram) from the battery to the ignition switch to the starter relay on the fender until you find the break.
1) This completes the circuit for the starter relay. Park neutral position switch or clutch position switch are a part of this circuit.
2) The other side of the relay closes, sending current to the starter relay on the starter motor.
3) This closes the main starter "switch" inside the starter which completes the starting circuit.
4) The starter motor runs.
From what I understand, you've replaced the components that make up steps 1 and 2. The fact that you can short out the solenoid on the fender to get it to start means that 3 and 4 can work when they get the proper signal. This means to me that there almost has to be a broken wire/connection in the circuit that performs step 1. This probably means, as tedious as it is, you'll need to trace wires (get a good wiring diagram) from the battery to the ignition switch to the starter relay on the fender until you find the break.
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Try again today to get running .... When the key is the start mode I get only 3 volts at the solenoid . truck will trun over and start when hooking up a 12 volt hot wire from batt. went to parts store and bought better solenoid thought it wasn,t picking up 3 volts .. still no work ...why only 3 volts ? i
Elder User
Joined: Jan 2004
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From: Pauline, South Carolina
Switch should be sending 12 volts to the electromagnetic coil of the solenoid. Are you certain of the conection to the ignition switch. It's also possible that you got a bad replacement ignition switch. The fact that there is some voltage when the switch is turned to start indicates either a poor connection (Plug, broken wire barely touching inside the casing, etc.) or a high resistance (Corrosion, bad switch, etc.). I suppose one other possibility would be a bare spot on the wire touching a ground. All that being said, if you can pick out which wire it is on the ignition switch, you could try applying 12 volt to the wire in the plug and see if it reaches the solenoid. That would let you know if the problem lies between the siwtch and the connection to the solenoid.
Good Luck...........
Good Luck...........
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