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Shut off while driving and will not start

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Sounds like you have a burned out ignition resistor going to the ignition coil. It is bypassed during cranking so the engine will run while the ignition switch is in the "crank" position.
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Friday, November 24th, 2017 AT 5:01 PM (Merged)
Tiny
BELENTHIAN
  • MEMBER
  • 14 POSTS
Allright. Where is the ignition coil and Ignition resistor located.

Thank you for all the help!
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Friday, November 24th, 2017 AT 5:01 PM (Merged)
Tiny
DESTINY13
  • MEMBER
  • 1 POST
  • FORD BRONCO
I have a 1994 ford bronco 351 modified big block 184,000 miles It will start up fine and run for about 20 minutes then just dies as if someone shut off the key I try to start it back up and it wont but if you let it sit for a couple of hours it will start right back up and do the same thing. Sometimes it will run for a day or two without any problems I have replaced the coil, coil wire, ignition module, and did fuel conditioner and losened the exhaust and none of those made any difference
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Friday, November 24th, 2017 AT 5:01 PM (Merged)
Tiny
SPOOM
  • MEMBER
  • 2 POSTS
My 1993 f-150 is doing the same thing, when I find out what is going on I will let you know
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
ENGINE SIZE?

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
BELENTHIAN
  • MEMBER
  • 14 POSTS
Its a 5.0L V8
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
SORRY DOC

I WAS "REFRESHING" MY TABS

DIDN'T NOTICE YOU JUMPED IN UNDER ME!

DID YOU UNDERSTAND THE TRUCK THING, IN EMAIL? AFTER I RE-EXPLAINED?

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
OK HAVE DIAGRAM

CRAMMED MAY NOT BE EZily READ. IF YOU WANT IT, LET ME KNOW, I CAN SAFELY GET IT TO YOU

NO LOCATION IS GIVEN HERE

HOWEVER (THIS MAY BE DIFFICULT) ON THE DIAGRAM, IT IS "RESISTORS" SLIGHTLY BELOW THE "10" AT THE TOP

THE "DK GREEN-YELLOW" WIRE AT THE COIL, SEEMS TO BE A DIRECT PATH TO IT---I DO NOT NOW HOW FAR YOU WILL HAVE TO FOLLOW IT!

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
OOOOPS!

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
REALDEALNEAL
  • MEMBER
  • 1 POST
  • 1994 FORD BRONCO
  • V8
  • 4WD
  • AUTOMATIC
  • 187,000 MILES
Electrical problem
1994 Ford Bronco V8 Four Wheel Drive Automatic 187000 miles

The engine dies when I pull the headlight switch. I
replaced the switch, but that did not correct the issue.
I resently had the the intire dashdoard out to replace
the heater core. Is it posssible that I have done some
thing to the wiring when I reassembled the dash?
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You could have if all was good before the dash came out. Try the grounds.
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
OOOPS AGAIN!

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
BELENTHIAN
  • MEMBER
  • 14 POSTS
Thats to small to read haha.
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
ME AND DOC FINALLY FIGURED OUT, WE HAD TO CLICK ON 'EM TOO!

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
BELENTHIAN
  • MEMBER
  • 14 POSTS
So what do you think the problem is. I have tried everything I have thought the problem may be.

Thanks
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
YOU ACTUALLY CHECKED THAT RESISTOR, THAT FAST?

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
TROWEN7772
  • MEMBER
  • 2 POSTS
  • 1993 FORD BRONCO
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
Engine Mechanical problem
1993 Ford Bronco V8 Four Wheel Drive Automatic 180000 miles

on my 93 ford bronco 5.8l/351 it keeps stalling out when I take off from a stop and its also running really rough at an idol. It almost sounds like a vacuum leak or a sensor. Dont know how to fix it can you help me
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check fuel pressure and fuel pressure regulator like this:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
BELENTHIAN
  • MEMBER
  • 14 POSTS
Where is the resistor located. I cant seem to find it
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Friday, November 24th, 2017 AT 5:02 PM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
BEST "I" CAN DO. CARADIODOC MAY DO BETTER

REWIND TO MY ANSWER STARTING, "OK I HAVE THE DIAGRAM"

READ LAST LINE AGAIN!

I KNOW THIS MAY BE DIFFICULT. ESPECIALLY WHEN, ONCE YOU FIND IT. YOU MAY STILL BE LOST!

PROBABLY HAVE NOT GOT "MR. VOLTMETER" AVAILABLE?

IF YOU CAN FIND IT

MAYBE I CAN THROW YOU A SIMPLE TEST, THAT MAY POINT MORE. AT THE RESISTOR BEING BAD

DOC, I DO NOT KNOW WHAT THIS WILL DO TO THE ELECTRONICS ON THIS RIG

CAN I SHOW 'EM MY REAL JEEP PICS, OF BYPASSING DIRECT TO THE COIL?

OR IS THIS A BAD IDEA ON THIS ONE?

THE MEDIC
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Friday, November 24th, 2017 AT 5:02 PM (Merged)

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