Notices
1978 - 1996 Big Bronco  
Sponsored by:
Sponsored by:

intermittent spark

Thread Tools
 
Search this Thread
 
Old Aug 10, 2003 | 04:46 PM
  #1  
Metallheadd's Avatar
Metallheadd
Thread Starter
|
Senior User
Joined: Jul 2003
Posts: 122
Likes: 0
intermittent spark

Hey guys,
I have a 79 Bronco with a 400 and Im getting an intermittent spark problem. It'll be running fine and just die out, then it'll come right back again running fine. I put a new cap and rotor on it with no change. I did notice that the fairly new Magnetic pick-up moves a bit which dont seem right. I also noticed a small amout of oil on the sides of the bottom plastic part under the cap. Im thinking I may have a wiring problem or maybe that pick-up being loose. I know its definitly a spark problem cause I can smell the raw fuel when it quits and it sometimes backfires thru the exhaust. Any ideas?
 
Reply
Old Aug 10, 2003 | 05:01 PM
  #2  
Rascal2k's Avatar
Rascal2k
Junior User
Joined: Sep 2002
Posts: 60
Likes: 0
From: San Diego USA
intermittent spark

The most common wiring failures that I've seen with those symptoms is a loose ground on the dist. or loose wiring on the coil. Check those first.
 
Reply
Old Aug 11, 2003 | 04:39 PM
  #3  
Metallheadd's Avatar
Metallheadd
Thread Starter
|
Senior User
Joined: Jul 2003
Posts: 122
Likes: 0
intermittent spark

It seems it was a bad coil. Must of been getting hot and then missing a beat. Replaced the coil and the problem is gone.


Yee Haw!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Citizenrain
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
17
Jun 11, 2012 02:30 PM
dogmantra
1973 - 1979 F-100 & Larger F-Series Trucks
4
Oct 19, 2010 08:25 PM
dirtybird96
1968-Present E-Series Van/Cutaway/Chassis
10
Oct 16, 2010 04:23 PM
ptesmoke
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
3
Oct 4, 2008 12:45 PM
+massacre+
1983 - 2012 Ranger & B-Series
24
Jan 31, 2006 08:18 PM




All times are GMT -5. The time now is 06:52 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE