I Need Help!!!
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
I Need Help!!!
i really need some help n this issue. my bronco is running MSD ignition. The guy i brought it from apparently didnt know what the heck he was doing and put a stock ignition module and a mallory coil with an MSD ditributor. the problem i am running into is that my truck keeps cutting off for no reason. whether its at idle or running down the street, it will just die. it will crank right back up so i dont think it has anything to do with the fuel or air systems. i just replaced the thermostat and put a new electric fan on it so i know its not running to hot. could it be that the ignition module isnt putting out enough volts to keep the distributor happy and in turn its getting to hot and cutting itself out? this is the only thing i can think of. i know the distributor wants 45,000 volts and that the stock control module is only putting out around 23,000. think this could be my problem or do you think it could be something else?
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
78 bronco, 460 bored out to 506, nothing stock on the motor besides the block. c4 tranny tore down and beefed up. truck is set up for sand drags. i was looking at the MSD Offroad module and a High Vib Blaster 3 coil.
FTE Sponsor
Joined: Aug 2006
Posts: 755
Likes: 0
Originally Posted by walsh
78 bronco, 460 bored out to 506, nothing stock on the motor besides the block. c4 tranny tore down and beefed up. truck is set up for sand drags. i was looking at the MSD Offroad module and a High Vib Blaster 3 coil.
If you decide to get a new distributor, consider our custom curved Duraspark Distributor built with our new Full Length Oil Impregnated Bronze Bushing. The full length bushing improves timing stability and spark scatter. If stock appearance is not an issue, take a look at our one piece D.U.I. Distributor. Whether you choose the Duraspark or the D.U.I., we curve each on a distributor machine based on your engine combination. Please see them at:
http://www.performancedistributors.c...istributor.htm</O
>Also, there is now an excellent installation article on the D.U.I. Distributor on the Ford-Trucks.com site at:
https://www.ford-trucks.com/article/idx/0/358/article/DUI_Ignition_Installation_In_A_Ford_351W_V8.html
__________________
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
FTE Sponsor
Performance Distributors
www.PerformanceDistributors.com
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
i dont think its an rpm limiter issue because it does it at idle or at speed which is whats really throwing me off. i ordered an MSD offraod controll module as well as a high vib blaster 3 coil. i will let you guys know if this fixes the problem. wish me luck
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
Does it sputter when you start pressing the accelerator to give it gas or is it just sputtering idling on its own? I would check the carb as well just to rule out stuck choke or a failed/failing accelerator pump.
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
i just replaced the carb. it doesnt sputter at all. it just dies out of no-where. whether its idling or pushin 3000 rpms, just dies. cranks right back up with no problems, so i dont think it is a fuel problem.
Trending Topics
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
Well pull a plug and see what color they are currently in the block. This can go a long way in telling what is going on inside the engine.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
pulled the old ones and just replaced them. whoeber put them in didnt gap them right. they ranged from .032 to .050 . so i poped new plugs in and it hasnt really ran enough to tell if it is burjning oil, burning hot, etc. here is a list of all i have replaced.
alternator
carb
thermostat
electric fan
plugs
flushed the radiator
air cleaner
the only thing i can figure is that the MSD distibutor is trying to pull 45,000 volts from the stock control module which is only putting out 23,000 and its getting to hot and shutting off.
alternator
carb
thermostat
electric fan
plugs
flushed the radiator
air cleaner
the only thing i can figure is that the MSD distibutor is trying to pull 45,000 volts from the stock control module which is only putting out 23,000 and its getting to hot and shutting off.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
Sounds like you may have the right idea, but plug coloration will tell you what is actually going on inside the engine. Black and sooty is an indication of rich fuel, white spots are for too hot of plugs, nice golden brown is a proper burn, melted plugs are for pinging, and bent and broken plugs of obvious engine damage.
Thread Starter
|
New User
Joined: May 2007
Posts: 23
Likes: 0
From: Yuma AZ
yeah i know it is running rich, but it was set up to run 110 or AVGAS. when i pulled the old plugs out one wasnt even firing, mainly because it wasnt gapped right and it had carbon built up between the contacts. it looked like a carbon bridge. so i changed all of them. like i said, since i have changed them it might have ran a total of 45 minutes tops.
