94 explorer ign switch

[outlaws03]

On a 94 explorer something is burning out the ign. switch causing the charging system to stop charging. I have checked grounds any other ideas.

[sjwoody]

See this link:
http://www.autozone.com/servlet/UiBr...3d800ba9c7.jsp

Figure 29

Hard to say specifically. I'd first look at the wiring outputs from the alternator. Check for condition and security. Also the condition of all fusible links and fuses.

[Stevo2]

Originally Posted by outlaws03

On a 94 explorer something is burning out the ign. switch causing the charging system to stop charging. I have checked grounds any other ideas.

Your problem is at the ignition switch. Are you using a OEM Ford switch? That's the only way to go. If the connector on the wiring harness that plugs onto it is damaged or the wiring terminals are heat stressed/damaged you will have to replace the connector and terminals. Also need to apply dielectric grease to the terminals before you snap them back together. Here's something else to look at.

Ignition Switch - Harness Connector Non-Mating
Article No.
94-19-7
09/21/94
IGNITION SWITCH - NON-MATING CONDITION BETWEEN 14401 HARNESS CONNECTOR ASSEMBLY AND IGNITION SWITCH - "NEW" SPACER FOR ATTACHING IGNITION WIRING CONNECTION TO SWITCH - VEHICLES BUILT AFTER 5/20/94 - SERVICE TIP
FORD:
1994 CROWN VICTORIA, ESCORT, MUSTANG, TAURUS, TEMPO, THUNDERBIRD
LINCOLN-MERCURY:
1994 CONTINENTAL, COUGAR, GRAND MARQUIS, SABLE, TOPAZ, TOWN CAR, TRACER
LIGHT TRUCK:
1994 AEROSTAR, BRONCO, EXPLORER, F-150-350 SERIES, F-47, RANGER, VILLAGER
ISSUE:
Some vehicles may need re-work of the 14401 wiring harness. While attaching the harness connector to the ignition switch, a non-mating condition may occur. This is due to a design revision (larger tower on switch) of the ignition switch, and not having the proper spacer to clear the switch tower.
ACTION:
While re-working any 14401 harness (on affected vehicles built after 5/20/94), determine if the correct spacer (F4TB-14A468-CA) is attached to the ignition switch connector. The correct spacer will allow the "old" or "new" 14A464 connector to mate with the ignition switch assemblies F2DC-11572-AA or F4DC-11572-AA. Refer to the following service procedures.
SERVICE PROCEDURE
1. Locate connector assembly F4TB-14A464-AYA or F2TB-14A464-VA and inspect to determine if spacer F4TB-14A468-CA (Service Number F4PZ-14A468-A) is attached (Figure 1).
NOTE: THE SPACER IS GRAY AND THE PART NUMBER IS EMBOSSED ON THE FACE OF THE SPACER.
2. If spacer F2TB-14A468-HA is being used, please discard by prying off.
CAUTION: BE CAREFUL WHEN PRYING OFF THE OLD SPACER, SO THAT THE SPACER LEGS ARE NOT BROKEN OFF INSIDE THE CONNECTOR.
3. Snap on the "new" spacer F4TB-14A468-CA (Service Number F4PZ-14A468-A).