Starter Relay 2002 Ford E350

Question

Howdy Folks, I just changed out my battery isolation solenoid. (NAPA continuous duty) and I verified that it had failed with a meter. Now I have a no start situation sometimes with a good, load tested battery. Even if I use the aux swtich to bring both batts. together, still no start. Jump start works from external charger/starter. I can hear the solenoid clicking so I am assuming it is the starter solenoid this time. Can any one tell me where it is located on a 2003 Wini mini 24v (e350 V10) I sounds like it is near the solenoid box I was just in to change the isolation solenoid. The other solenoid in there is for the main disconnect switch, and I don't think that has anything to do with the starter.
Thank You

enblethen · Answer

Look behind the chassis battery under the hood. This one has the neutral safety switch wired through the coil. starter relayThere is another down on the starter. starter

mexicowanderer · Answer

Battery - Ignition switch - starter relay - starter solenoid - series connection through field and armature in starter motor.

Use due caution and check components by BYPASSING them with a bridging wire before passing-OK or condemning the component. Start from switch side and work towards the starter.

If starter used an integral solenoid I tied a fender-mount type ford solenoid in the circuit to fire the starter motor mounted solenoid.

j-d · Answer

When you turn the key to Start, given it's in Neutral, you energize the Relay/Solenoid Bud described by the Battery. That one powers the cable to the Starter itself. Cable mounts to the Solenoid on the Starter. The difference between that Solenoid and most others is that it has a jumper built into that causes it to energize whenever the big cable is hot.
Always check both sides of a circuit. By that I mean the ground from battery to chassis, both ends. Did you disconnect the negative? If so, something could have gone wrong. Even inside the "sealed" connection in the clamp.

ksg5000 · Answer

Are you sure you connected all the wires back up to your new solenoid?  When things don't work after changing something it's a good sign that the install was done incorrectly rather than something else failing by coincidence.

enblethen · Answer

Ksg5000 has a good point!OP: You said you replaced the "battery isolation solenoid". Are you making reference to the battery disconnect? What was part number from NAPA? Most of relays they have are electrically held and not mechanical latching as used in the majority of the battery disconnects.

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Starter Relay 2002 Ford E350

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