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electrical issues

  1. 4.6L Tech
    My Mustang misfires badly when cold. Once the car gets up to operating temperature, the misfires stop. The original check engine code was lean air fuel mixture. After about a month of this, the misfires became a bit worse (although still only when cold), and a new code popped up: random...
  2. 2005-2010 Mustang GT Tech
    California's had a lot of rain in the last few weeks but today topped it off by messing with my electrical system. rain.gif I noticed after the rain that the passenger side brake light stays on (even if the car is off and the light switch in set to off). After turning the car on and driving to...
  3. 2005-2010 Mustang Talk
    Hello fellow Mustang bloggers, this is my first time posting in a forum, I usually do not post anything because I mostly just come here to find help about problems that are not that complicated however today something crazy happened that has me scratching my head in confusion. To begin my story...
  4. 2005-2010 V6 Mustang Tech
    I have had an issue about 3 to 4 years ago where my mustang over heated and ford replaced a few things over multiple visits. those things include more than likely the thermostat, fan, hoses, radiator and possibly the fusebox. fast forward to a month ago. car over heated and had the fan and...
  5. 4.6L Tech
    Hi, this is my first post and I'm stuck in a real pickle. I just replaced the bushings on the drivers side door hinges because they went bad. all we did was remove the door and move it a few inches so we could get to hard to reach nuts. To remove the bottom hinge, we took off the drivers side...
  6. Classic Tech
    I'm restoring a 1965 Mustang coupe. I just finished putting some disc brakes on it, so next up is the transmission and electrical. Does it matter which one I start first? I would guess it doesn't matter, but if I'm missing anything please let me know. On to the point, I believe I need to...
  7. 2011 - 2014 V6 Mustang Tech
    So when i put in my HID's in my fog lights i guess i didnt plug in completely. So water damage got into the female end. Now it is all foamed up with green. Sorry i cant give a great description not the best with cars. But my whole passenger side of my fog lights wont work. Any way i can make...
  8. 2005-2010 V6 Mustang Tech
    My car began acting funny this morning. When I arrived at work, I locked the doors with the factory remote. About an hour later, I returned to my car and tried to unlock it with my factory remote...no joy. Then I tried my aftermarket remote (the one that came with my remote car starter), and...
  9. 2005-2010 Mustang GT Tech
    I currently have no power to the car whats so ever, like as if there was no battery in the car. I had some corrosion on the negative cable around the battery post which i cleaned up very thoroughly and re-tightened, still dead. Hooked up trickle charger with no luck. I am out of ideas and i...
  10. Classic Tech
    I have been debating on replacing the wiring harness of my 1968 Mustang because of a few issues. The few issues I have come across are: Headlights do not work and are missing some wires Tailights do not work and are missing quite a few wiring components All of the dashboard lights do not light...
  11. 4.6L Tech
    Im back at trying to figure out my problem with my pcm or something! I have had problems ever since I took the DIABLO tuner off my car. I had it on there and then took it off. About 30 miles after taking this off my car broke down and the THEFT light blinked blinked n blinked. Im not sure how...
  12. Introductions
    Hello this is my first post. I'm having a strange issue with the radio in my 2004 Mustang. The radio volume only goes up regardless of which way you turn it. At first I could sort of gently finesse it and it would slowly go down, now it just rockets up to max volume. The speakers are from the...
  13. 2005-2010 Mustang Talk
    Okay so my car has been running fine, but all of a sudden tonight when I went to leave my friends house it was having major issues As I walked up, I unlocked it with my fob, but the front headlights and markers didn't come on like they usually do, while the rears did as normal. I got in the car...
  14. Classic Tech
    Working on a '67 coupe with electrical issues. After some multi-meter testing, here's what I have: Brake light gremlins 1) With the headlights off -> brake lights work. 2) With the headlights on - > the rear parking lights work, until I hit the brakes. Then, all rear lights go dark. No brake...
  15. 5.0L Tech
    It's a 1984 mustang glx. It's a 5.0 four bbl HO convertible five speed. Most of the wires under the hood are falling apart. The previous owner spliced part of it, where it connects to the harness coming out from the firewall.. I need to find a good harness for a good price. I can't afford the...
  16. Classic Tech
    Hey guys today i turned on my mustang everything started great and as i began to drive down the road i noticed that my radio was off.. I thought at first it was no big deal because the wiring is already very sketchy. BUT then as i turned on my turn signal that didnt work either... then I...
  17. 4.6L Tech
    I swear this car hates me. I got the coolant leak mystery solved and then the Ford factory add on anti-theft decides to lock on. When I got this car it had no key fob and the factory anti-theft system in it. I removed the black control box from under the steering column and rewired the...
  18. Classic Tech
    65 mustang with volt gauge bouncing all over the place and fluctuating lights? Regulator ? bad ground? Also Passenger side brake light not working? Any suggestions? replace regulator?
  19. Classic Tech
    Looking to completly rewire a 67 with factory A/C and several after market additions. Can anyone recommend which of the after marked wiring harnesses would be best? Have been looking at several but have not found any that would meet all of our needs. Or, are they any companies that would...
  20. 2005-2010 V6 Mustang Tech
    I purchased an AeroForm V6 grill with fog lights, and a street scene wiring harness. I followed all instructions that came with the wiring harness except for the switch placement inside the car. Instead of putting the switch in the car, i cut the switch off of the harness and connected the wire...
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