1978 - 1996 Big Bronco  
Sponsored by:
Sponsored by:

Ignition problems

Thread Tools
 
Search this Thread
 
  #1  
Old 07-26-2016, 02:41 PM
TGH's Avatar
TGH
TGH is offline
New User
Thread Starter
Join Date: Jul 2016
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Ignition problems

First let me say glade to be here and apart of this forum. I have a 1983 Bronco, 351w, 2 Barrel carburetor. It ran fine never a issue. It died and would not restart. It turns over but has no spark. I took ignition control module to AutoZone and it tested good. So I bought a new coil figuring that was the problem. Still no spark. Need help please
 
  #2  
Old 07-26-2016, 02:48 PM
ManfredVonRichtofen's Avatar
ManfredVonRichtofen
ManfredVonRichtofen is offline
Postmaster
Join Date: Nov 2009
Location: SE Georgia
Posts: 3,189
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by TGH
First let me say glade to be here and apart of this forum. I have a 1983 Bronco, 351w, 2 Barrel carburetor. It ran fine never a issue. It died and would not restart. It turns over but has no spark. I took ignition control module to AutoZone and it tested good. So I bought a new coil figuring that was the problem. Still no spark. Need help please
have you checked the wires and make sure nothing is grounded out?
 
  #3  
Old 07-26-2016, 03:06 PM
TGH's Avatar
TGH
TGH is offline
New User
Thread Starter
Join Date: Jul 2016
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Everything looks clean and the wires are all taped and cased. I was told that there is a ignition switch on the steering column down by the brake pedal could this be the problem or do I need to unravel the wiring also under the top distributor cap is only the rotor nothing in the lower cap the only wires that go to the distributor are the coil and spark plug wires
 
  #4  
Old 07-26-2016, 11:29 PM
Torky2's Avatar
Torky2
Torky2 is offline
Fleet Mechanic
Join Date: Sep 2003
Posts: 1,716
Received 10 Likes on 9 Posts
Originally Posted by TGH
........... also under the top distributor cap is only the rotor nothing in the lower cap the only wires that go to the distributor are the coil and spark plug wires
Are you saying that there is no pickup coil in the distributor housing, and no 8-tooth reluctor wheel on the shaft, and also no vacuum advance unit?

If so, that sounds like one of the EEC-III-driven electronic distributor setups, where a computer figures out spark advance, and tells the ICM when to fire the coil. The distributor is empty, except for the rotor, and some of those rotors and matching distributor caps had a look of their own. I had one on a '83 Lincoln 302. The engine timing was picked up by a crankshaft position sensor, which was mounted in a bracket down near the harmonic balancer. Behind the balancer was the "star wheel", a 4-pointed wheel, that the CPS picked up the points on as they went by. A V8 fires a cylinder every 90 degree turn of the crankshaft. In mine, there was no adjustment of the distributor possible, it was keyed in. The computer took it from there. Worked fine. Only did long term maintenance of plugs/wires/rotor/cap.

I have a EVTM that covered the car system, but its all packed up somewhere due to house renovation and other things going on, otherwise I'd check it out and see if anything struck me that could help you out.
 
  #5  
Old 07-27-2016, 07:20 AM
TGH's Avatar
TGH
TGH is offline
New User
Thread Starter
Join Date: Jul 2016
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Thanks for the information I thought I had a duraspark II in it i will check it this morning and post what I find
 
  #6  
Old 07-27-2016, 01:21 PM
TGH's Avatar
TGH
TGH is offline
New User
Thread Starter
Join Date: Jul 2016
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Okay heres the news it was a fuse. You were correct I have a Duraspark III. It has a crankshaft sensor underneath the alternator checked ohms on it. It was good so I moved to the EEC relay. One of its wires gets its power though a fused wire from the ignition switch bolted to the steering column. The wire was hot at ignition switch so I checked my fuses. Thank you for all the help
 
  #7  
Old 07-27-2016, 11:43 PM
Torky2's Avatar
Torky2
Torky2 is offline
Fleet Mechanic
Join Date: Sep 2003
Posts: 1,716
Received 10 Likes on 9 Posts
Good!

Hopefully that fuse blew because of metal fatigue from thermal cycling over 33 years, and not that you now have an intermittent somewhere.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
red5standingby
1987 - 1996 F150 & Larger F-Series Trucks
4
12-23-2016 02:55 PM
BKM-WR3
1987 - 1996 F150 & Larger F-Series Trucks
10
04-05-2015 04:06 PM
66 sandrail
1983 - 2012 Ranger & B-Series
4
09-09-2012 08:22 PM
Lost_Arkitekt
1961 - 1966 F-100 & Larger F-Series Trucks
1
11-01-2009 12:54 AM
Coondawg
Performance & General Engine Building
3
12-07-2003 02:37 PM



Quick Reply: Ignition problems



All times are GMT -5. The time now is 11:20 AM.