coil problems

Discussion in 'Other Automotive Tech & Talk' started by mean_maverick, Mar 23, 2009.

  1. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    i have 12v going into the coil and 12v coming out the other terminal on the coil but cant get it to fire. replaced the coil with two others i have..... am i missing something??? :16suspect
     
  2. Jamie Miles

    Jamie Miles the road warrior

    Joined:
    Feb 8, 2005
    Messages:
    12,098
    Likes Received:
    29
    Trophy Points:
    383
    Location:
    Lawrenceville, GA
    Vehicle:
    13 Mavericks
    If you've tried two other coils, sounds to me like some other part of the ignition system. What ignition system are you running?
     
  3. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,546
    Likes Received:
    2,914
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    ...dist. modual...:yup:
    check your dist. ground...
     
  4. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    running a TFI setup from a '94-95 stang. just replace the stator in the dizzy, had the module checked at Advance and it passed, getting proper voltage and no wire breaks....


    the one thing i dont like about this setup is that it has a remote mounted TFI module that is on a heat sink and bolted to the fenderwell
     
  5. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    Dave...make sure you have 12 volts at the coil while cranking.If its dropping off during cranking...it may be the ignition switch going bad on you.Hope this helps you...Good luck.
    Try a different coil wire too.
     
  6. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    yup, checked that first.... but thanks Pete. :thumbs2:
     
  7. PaulS

    PaulS Member extrordiare

    Joined:
    May 3, 2004
    Messages:
    4,858
    Likes Received:
    11
    Trophy Points:
    0
    Location:
    Seattle area
    Vehicle:
    1966 Mustang, 1972, 73, 73 and 73 Mavericks
    Is the module and any other parts of your ignition grounded?
    If you have 12 volts at both sides of the coil it is not grounding and it will never make a spark until it finds a ground.
     
  8. Joe Dirt

    Joe Dirt BBF life

    Joined:
    Dec 16, 2008
    Messages:
    4,375
    Likes Received:
    7
    Trophy Points:
    172
    Location:
    Cleveland, TN
    Vehicle:
    1970 ford torino #1
    That is what you should love about it! ford done this to prolong heat related module woes they had for years.
     
  9. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    but only done it for 2 yrs before they went to the 4.6 :huh:
     
  10. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    needless to say, im gonna solve most of my problems and go with a different setup (something around a fox body setup) ;)
     
  11. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,546
    Likes Received:
    2,914
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    i just went through this with my ...MSD Dist...it was a...weak ground on the Dist. (-1 volt)

    ...:hmmm:...
     
  12. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    how does the dizzy have a weak ground when it's bolted to the engine :confused:
     
  13. PaulS

    PaulS Member extrordiare

    Joined:
    May 3, 2004
    Messages:
    4,858
    Likes Received:
    11
    Trophy Points:
    0
    Location:
    Seattle area
    Vehicle:
    1966 Mustang, 1972, 73, 73 and 73 Mavericks
    Paint, dirt, and grease between the clamp and the distributor. Paint, gasket, dirt and grease between the distributor and block.
    It isn't hard to have some resistance to the flow of those pesky little lektrisikals!
     

Share This Page