Electrical problem

Foxwolfe

New Member
May 31, 2004
28
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Vallejo, CA
So I recently moved up to washington and had to smog my stang here, during the process I think the cig lighter plug in they use mighta shorted something out or blown a fuse cause since then I've been having problems.

First after I left the smog place I noticed my speedo was now dead, then a day or two later my auto meter tach starts moving around on it's own while I'm holding a constant speed or idling. Then finally it was like there was just a massive draw on the electrical system cause the car died and was losing power very very fast, I couldnt even have my hazard lights on while waiting for the tow.

I just wanted to see if anyone here had any ideas before I start checking stuff out on it tomorrow morning.
 
Thats one of the problems, even with the car off it's like there is now a constant draw on the battery, it was down to 10v when I yanked it before heading inside, and it was only at 10-11v while the car was on.
 
Limp down to the local auto parts store. Chain stores like AutoZone, Advance Auto Parts, etc will check your alternator and charging system for free.

Diagram courtesy of Tmoss & Stang&2birds
MustangFuseBox.gif


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.

Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

Complete computer, actuator & sensor wiring diagram for 88-91 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif

AutoZone wiring diagrams

http://www.autozone.com/servlet/UiB..._us/0900823d/80/16/71/3c/0900823d8016713c.jsp for 79-88 model Mustangs

http://www.autozone.com/servlet/UiB..._us/0900823d/80/19/59/5a/0900823d8019595a.jsp for 89-93 model Mustangs

http://www.autozone.com/servlet/UiB..._us/0900823d/80/1d/db/3c/0900823d801ddb3c.jsp for 94-98 model Mustangs