no spark from coil, but coil is good, help please - MustangForums.com


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Sponsored by:
Sponsored by:

Reply
 
 
 
Thread Tools Search this Thread
Old 09-27-2007, 12:02 AM   #1
86GT 93LX
5th Gear Member
Thread Starter
 
86GT 93LX's Avatar
 
Join Date: Oct 2006
Posts: 2,424
Default no spark from coil, but coil is good, help please

ok this car is just giving me hell. i took it out for a dive after doing headgaskets and blew a heater core hose, was able to cut of the end and put it back on. drove a block and car died. no spark, had it towed home, no spark from the coil but the coil isnt bad, i put in a coil i know works and still no spark!! what would cause this??
86GT 93LX is offline   Reply With Quote
Old 09-27-2007, 12:14 AM   #2
FuzzyDiceRule
5th Gear Member
 
FuzzyDiceRule's Avatar
 
Join Date: Jun 2005
Location: San Diego, CA
Posts: 3,315
Default RE: no spark from coil, but coil is good, help please

umm, a bad coil, just cause you just put it in doesnt mean its crap
FuzzyDiceRule is offline   Reply With Quote
Old 09-27-2007, 01:20 AM   #3
86GT 93LX
5th Gear Member
Thread Starter
 
86GT 93LX's Avatar
 
Join Date: Oct 2006
Posts: 2,424
Default RE: no spark from coil, but coil is good, help please

i just stuck the coil out of my 86 bronco and it still doesnt spark, and i started the bronco 5 minutes ago so that coil is good. something else is wrong, what might it be?
86GT 93LX is offline   Reply With Quote
Old 09-27-2007, 01:36 AM   #4
86GT 93LX
5th Gear Member
Thread Starter
 
86GT 93LX's Avatar
 
Join Date: Oct 2006
Posts: 2,424
Default RE: no spark from coil, but coil is good, help please

anyone know if the power to the coil is constant? and where does it come from? the ecu?
86GT 93LX is offline   Reply With Quote
Old 09-27-2007, 01:42 AM   #5
86 5.0L
6th Gear Member
 
86 5.0L's Avatar
 
Join Date: Jul 2006
Location: San Diego, CA
Posts: 6,884
Default RE: no spark from coil, but coil is good, help please

Hmmm i remember I had this problem before (well not ME exactly) dont remember how I fixed it though, it was like 4 years ago[&:] it turned out to be something along the wiring around the coil
86 5.0L is offline   Reply With Quote
Old 09-27-2007, 02:07 AM   #6
86GT 93LX
5th Gear Member
Thread Starter
 
86GT 93LX's Avatar
 
Join Date: Oct 2006
Posts: 2,424
Default RE: no spark from coil, but coil is good, help please

i tried jumping the coil didnt work, not sure why
86GT 93LX is offline   Reply With Quote
Old 09-27-2007, 04:58 AM   #7
PRO50SC
The Rogue Mod
 
PRO50SC's Avatar
 
Join Date: Feb 2006
Location: Maryland Sucka's!!
Posts: 21,918
Default RE: no spark from coil, but coil is good, help please

No spark, possibly the ignition module or the pick up coil in the distributor
PRO50SC is offline   Reply With Quote
Old 09-27-2007, 07:24 AM   #8
tmajikman
5th Gear Member
 
Join Date: Oct 2006
Location: Woodstock, GA
Posts: 2,594
Default RE: no spark from coil, but coil is good, help please

It could be a bad ground or fusible link, see if you can google a wire diagram for your car and trace the wires.
tmajikman is offline   Reply With Quote
Old 09-27-2007, 09:36 AM   #9
Gary H
4th Gear Member
 
Join Date: Mar 2007
Location: Chandler, Az
Posts: 1,080
Default RE: no spark from coil, but coil is good, help please

If you got water everywhere, check the distributor. Dont know if the 86 uses the same horseshoe for the coil, but mine had a wire break in it. Pretty common.

Wiring diagram fig 28 is the one you want
http://www.autozone.com/az/cds/en_us...rInfoPages.htm
Gary H is offline   Reply With Quote
Old 09-27-2007, 10:21 AM   #10
86GT 93LX
5th Gear Member
Thread Starter
 
86GT 93LX's Avatar
 
Join Date: Oct 2006
Posts: 2,424
Default RE: no spark from coil, but coil is good, help please

cool, ok theres no spark coming "from" the coil.
if the tvi is bad will that cause an imcomplete circuit to the coil?
if the ecu is bad will that cause the same thing?
86GT 93LX is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Labor Day Weekend Special Granatelli Sales GT S197 General Discussion 5 03-25-2016 08:01 PM
Labor Day Weekend Special Granatelli Sales The New S550 2015-2017 Mustang 5 12-27-2015 06:28 PM
Car died while driving... StalkerGT 5.0L (1979-1995) Mustang 13 09-25-2015 02:41 PM
Weird electrical/battery issue?? Mobiusone stang 2005-2014 Mustangs 7 09-07-2015 08:46 PM
03 V6 Mustang Ticking Noise Emblazoned General Tech 0 09-03-2015 10:45 PM


Tags
1973, 1986, 50, 50l, 600, 88, 96, bronco, coil, forum, fzr, good, mustang, power, spark, yamaha

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 01:48 AM.