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electrical issue

  1. Both terminals of coil hot without key in ignition

    Classic Tech
    Hey guys, I have a bit of an electrical problem going on. I have a 68 mustang, and it's been in the garage for the winter. I went to start it the other day and it will crank over but it wouldn't start. So I did the basics, and wasn't getting any spark to the plugs. So I have a ton of new parts...
  2. 2015 GT, Output Speed Sensor Wiring?

    2015+ 5.0 Tech
    After recently purchasing my 2015 GT, I discovered that the previous owner did some fudgery with the output speed sensor on my transmission (See photo below). I get the sense that these three butt connectors are mixed up, since my datalog shows 0 RPM's, no matter the speed. I also have a feeling...
  3. 2005 V6 Mustang (automatic) - electrical gremlins and repair advice

    2005-2010 V6 Mustang Tech
    Hey everyone, I've seen bits and pieces of this issue come up a couple times but was having trouble finding resolutions to it so I was hoping to get some advice. My Mustang is now 10 years old and has always had some issues. I've had a battery drain fixed, I've replaced my alternator once...
  4. Relay Problems, HELP!

    2005-2010 V6 Mustang Tech
    I have a convertible 06 Mustang V6. I have been having relay problems for a while. The fuse box under the hood has several of the same 7018 relays. one for the fuel pump, one for the trunk pop, ac clutch. Is there a specific orientation that these go. they are symmetrical and will go both ways...
  5. heater fuse blows and other problems occured

    Classic Tech
    this mourning on my way to school my 1968 mustang had an electrical fire. the heater fuse blew and now the devices that are on the p-r-n-d-2-1 fuse don't work either including the turn signals
  6. 2000 mustang GT cranks, doesn't start. theft light binding

    4.6L Tech
    2000 mustang GT cranks, doesn't start. theft light blinking My 2000 mustang GT randomly started acting up. i recently changes the clutch assembly and drove it a couple of days after. everything working fine.(don't know if that has any reason to this problem) but now it just cranks, but doesn't...
  7. Please help me; I have a seemingly major electrical issue with crossed turn signals

    Classic Tech
    Hello everyone. I have an issue with my 64 1/2. When I turn on the right turn signal everything is fine, but when I turn on left blinker, the back left blinker activates, but instead of the front left signal activating the front right activates. It appears that something is crossed that...
  8. Electrical Problems....HELP!!!

    Classic Tech
    So I have a 1966 Ford Mustang 289 V8, and a while ago I replaced the instrument bezel and I figured while I had it out I would replace a few of the light bulbs too. Once I had the light bulbs in I put everything back together correctly and tried turning on the dash lights....NOTHING! Before I...
  9. 1965 Mustang electrical Power Surge with Increased Throttle?

    Classic Tech
    I'm Having a problem with blown headlights in my 65 coupe. Every time I rev the engine my interior lights get brighter, and my headlights will get brighter and blow, on high or low beam it doesn't matter which one. My set up is as follows: stock 65 mustang wiring harness under the hood, halogen...
  10. Electrical problems. Please help

    2005-2010 V6 Mustang Tech
    Hey guys, thanks for checking this out. Any help will be greatly appreciated. My 06 V6 4.0 has had a few problems in the past, but after I fixed it I thought I was in the clear up until about a week ago. My radio started turning off and coming back on, it did this a few times then it went...
  11. 1967 Mustang Electrical Problem: Stalling under 1000 RPM

    Classic Tech
    I have recently installed a crate 302 engine in my 1967 Mustang Coupe. While the installation seemed to go fairly seamless, I think I am having an electrical issue. After starting the car, I must keep the RPM above 1000, or the engine will just die. This happens even after the engine has warmed...
  12. passenger window don't work till 30 mph

    2005-2010 Mustang GT Tech
    2006 Mustang GT 101K. The passenger window won't roll down until you are going 30 mph or above. Then once you roll it down it won't go back up until you shut the car off, pull the key out, reinsert the key and turn the ignition to run. then it will automatically roll all the way up and won't...
  13. Power window issues

    4.6L Tech
    I'm having an issue with my drivers side window not going down unless the door is open at least half way. None of the other windows are affected except the drivers side window. any ideas what it might be? Mustang electric window issue - YouTube
  14. 1966 Mustang Coupe Won't Start After Use/When Warmed Up

    Classic Tech
    Hello all! I am new to All Ford Mustangs and I am excited to take this forum for a test drive. First, a little about my beloved Classic Mustang: I own a red 1966 Mustang Coupe that was given to me by my grandfather when I was sixteen. I have since dubbed it "Drifter" after one of my...
  15. 97 3.8 No Electrical Power to Anything

    V6 Tech
    I need help figuring this one out... A few days ago I drove my car in the afternoon, no problems. That night, four hours later, I go out to start it and noticed the dome light was a little dim. I went to start it, heard the starter click, everything died, and I heard a clicking in the trunk that...
  16. 1965 Electrical Problems

    Classic Tech
    Hey guys. I have recently replaced all of the wiring harnesses in our 65 Coupe including the under dash, headlight harness, taillight harness, alternator feed, etc. These were replaced with the original style feeds/fuse panel from CJ Pony Parts. All was working well when suddenly the courtesy...
  17. 1997 Ford Mustang Factory Alarm Not Working

    V6 Tech
    Good afternoon everybody. I am working on a 1997 Ford Mustang convertible 3.8L and has just over 121,000 miles on it. We purchased the car for a very low price with not many things wrong with it. I have fixed all the things on the vehicle that needed to be done except for the last issue that has...
  18. 2006 Mustang -- Electrical Problems?? Need your help

    2005-2010 Mustang Talk
    Hi all -- I'm hoping you all can help me with a problem that I'm having with my 2006 Ford Mustang. Tonight, out of nowhere, it seemed like my battery had died on me. I was hoping it was just the battery, but it seems like that's not the case. My dad helped me jump the car to make the 3 mile...
  19. So 48 volts through a 12 volt system. Fried ECU in 1999 3.8 Ported V6

    V6 Tech
    So one beautiful day I talked my girlfriend into driving my car and taking it for a road trip to see how the rebuild would do on a long distance. So I made a play-list on my ipod, got everything ready and headed down stairs. I turn the key and the battery is dead. Easy fix, I didn't...
  20. 1984 Mustang Gt Turbo - no power to fuel pump

    2.3L Tech
    A few weeks ago my father and I started switching out the old engine wiring harness in my 1984 Gt Turbo for a new (used) one from a friend. While doing this, we also replaced the relay under the driver's seat (can't remember exactly which one it is, fuel pump I think). After putting in the new...