electrical

  1. T

    Electrical [1990] Baffling Ignition Issue (Need help ASAP!)

    I am absolutely confused and infuriated with this problem. I have not seen any other threads that describe an issue anything similar to this, so here goes. For the past few days, my car has been starting perfectly fine every time. It has no hesitation starting, and it seemed to run quite well...
  2. M

    Electrical 02 GT - Multiple Electrical Issues

    Hey everyone, as I said in my introduction thread I picked up a 5 speed 2002 GT about a month ago. Of course after I bought it I started noticing a couple electrical issues. When I have the headlights on and engage the high beams they come on right away, but the indicator on the dash does not...
  3. paddyrk

    Electrical 1991 LX 5.0, radio wiring help, ECU swap

    Hi, I am new to the forum and recently did a 347 swap into my '91 fox, and when doing so, I replaced the ECU with a Holley Hp EFI system. I have the car running and driving, but the radio does not turn on. I believe the radio got its power from the old ECU through its system of big red wires...
  4. M

    Abs Light

    The ABS and trac off light have been on in my 2004 GT since I bought it one year ago. I have replaced all brake pads, rotors, and calipers. I have thoroughly cleaned the ABS rings on all wheels; however, the lights are still on. I have been able to turn them off with a diagnostic reader, but...
  5. R

    2002 Ford Mustang Gt Jack Roush Edition Stage 2 Motor Swap Problems

    Ok, so here it goes. I put a 4.6 modular v8 together and put it in a 2002 ford mustang GT Jack Roush stage 2 five speed manual. It will not start... I have checked the voltage on the throttle position sensor. .986 when closed then 4.66 at WOT. It has a new fuel pump, a new MAF, it has a new Fuel...
  6. Shane8996GTLX

    Electrical Brake Light Switch

    Alright guys in my last ditched effort to avoid a dealer fix I thought I'd create an account. My brake lights stopped coming on last night when I accidentally tugged on a wire thinking it was my boost tube. I did my research and got under the dash. The pigtail and switch where still intact. I...
  7. A

    Stripping 88 Gt Wiring Harness. Help Please!

    So I have an 88 GT that is going to be a track only car and I want to strip the wiring "back to basics" essentially. What I really want to know is what I need to keep on my harness for the car to run and drive and do all that good stuff. I want to do a switch panel ignition and I am probably...
  8. H

    Electrical Instrument Lights / Blinker

    Hello All, Just picked up an 89 LX 5.0. The car seems to be pretty solid with most things working correctly. However, something that I've noticed is that the inside blinkers on the instrument panel do no flash. The blinkers on the exterior work fine, come on, off, etc. But the instrument panel...
  9. R

    89' Lx 2.3

    Hi, new here. About the car- Automatic, 2.3 EFI, 110k miles roughly, at least from what the prev. owner told me, had 89k miles when I bought it. but who knows if it was 89 or 189.?? right. Recently rear ended, no obvious damage, not even mechanic could give an estimate, couldnt find anything...
  10. T

    At Wits End With Battery Draining.

    Howdy Guys N' Gals. I have this here 07 Mustang GT I bought two years ago with 81,000 miles on it. 2 years later and the Center stacking lighting elements as well as the shifter and steering wheel button lighting will not shut off even after the car is shut off, doors shut and locked. At night...
  11. L

    Need Help

    I have a 2002 mustang V6 automatic. 1 week ago I changed the alternator. The car was running fine for a few hours then just died while I was driving. The car would crank but not start. The lights worked et . Where the mileage usually is was dashes. After checking the wiring my boyfriend came the...
  12. Buddy Tucker

    1995 Power Windows Or Lack Of

    Hello everyone I just got a old 1995 mustang with a 3.8 now I am trying to fix all the problems it has and I am just stumped on this one In the drivers door there's no power to the window switches the door locks work and the passenger side door switch works the window fine but theres no power to...
  13. J

    Weird Voltage Problem.

    I have an 01 v6 manual which I can't seem to diagnose voltage issues. I had the alternator rebuilt and tested plus I made sure my battery is in good working condition and bought a new serpentine belt. Everything is good but the way it's working is when I turn the car on it gives me a good 14+...
    • Jstang1
    • Thread
    • alternator problems battery light on electrical v6mustang voltage drops
    • Replies: 2
    • Forum: SN95 V6 Mustang Tech
  14. N

    Electrical Instrument Cluster Failure

    Hello, I have a 1994 mustang gt with major speedometer and odometer problems. Neither the speedometer or the odometer has worked for a while. I pulled the instrunent cluster to check the worm gears many have suggested and found then in tact. I did however find a burnt wire on the back of the...
  15. CorbinGT

    Electrical Overcharging Issue.

    Hello, My 94 Mustang GT is overcharging by that I mean The voltage gauge pegs. It only starts to do this after about 20 minutes of driving and after I get on it. It has a rebuilt alternator that bench tests perfectly and a new voltage regulator as well. Battery is fine, tests fine,car starts...
  16. FrankenStang88

    Electrical Headlights

    So i recently purchased a headlight and foglight switch for my 88 because before i had to find a sweet spot when trying to get the headlights to stay on. I got a new one and now they wont even turn on. The only thing that works is my high beams(when you pull back the turn signal lever). I dont...
  17. G

    No Brake Lights Or Horn.

    Recently acquired a 1994 Mustang Convertible, but there's an issue. Every time the brakes are tested, the number 9 fuse under the dash blows (usually within 3 taps of the brakes). When this occurs, horn does not work, and the car will also not start unless put into neutral first. The car will...
  18. D

    Electrical Eec Pin To Ground Measurements, E.g., Resistance, Voltage

    Hey gang, Is there a list/reference that gives normal specs for when checking eec pins with multimeter? I tested all eec pins' resistance with known ground (battery disconnected) and got what i suspect are some abnormal readings for several of them (all eec grounds seem fine though)...
  19. FrankenStang88

    Electrical Aftermarket Radio

    Ok so i bought a nice double din kenwood deck to replace the gaping hole where my stock radio should have been but i ran into a problem. The radio functions great and works but it isnt installed or bolted in correctly, actually its not bolted in at all it just sits in the hole. The back of the...
  20. T

    12v Drain On Defrost Circuit

    So I have a 2001 Bullitt with a paracidic drain that I have traced to the rear window defrost circuit. When I pull the rear window defrost relay the drain goes from 12.4v to 0.23v. I have a good set of wiring diagrams (BBBinc.com free .pdf wire diagrams). I have checked to see if the power wires...
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