please some help!

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Apr 24, 2014 | 12:23 PM

f100popeye

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Joined: Nov 2013

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please some help!

hello any help would be appreciated it and thank you

so the problem started when i was driving my 68 f100 v8 i got home and turn the key off but the truck didt turn off even with the key out of the ignition, i remove the cable out of the coil of the distributor and dove it like that like 2 weeks and now last time i started it was just cranking so i came runing to the engine bay remove the batttery and it stopped cranking,now evry time i put thr possitive port on i see a lot of sparks and engine will crank,does any of you know what the problem is i test the started and its fine im thinking it may be the solenoid but if the experts can give a advice that will be great

Apr 24, 2014 | 12:52 PM

Mudslinger72315

Senior User

Joined: Oct 2012

Posts: 113

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From: North East Arkansas

Sounds like the Solenoid to me. I would start with that.

Apr 24, 2014 | 01:18 PM

JEFFFAFA

Hotshot

Joined: Mar 2013

Posts: 14,255

Likes: 199

From: Phoenix, Az.

2X the solenoid. Rap on it a couple times with a hammer to get it's guts unstuck,start your truck,and go buy a QUALITY (AKA non made in china crap) New one.

Apr 24, 2014 | 06:38 PM

User 71024

Cargo Master

Joined: Sep 2005

Posts: 2,954

Likes: 64

unplug the small wire on the "S" terminal and see if it cranks, if it does the solinoid is bad, if it doesn't the ignition switch is bad.

Apr 24, 2014 | 07:55 PM

f100popeye

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Joined: Nov 2013

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Awsome advices it was the solenoid I just got a new one now it starts and turns off thanks everyone who help,!!!

Apr 24, 2014 | 09:35 PM

Mudslinger72315

Senior User

Joined: Oct 2012

Posts: 113

Likes: 0

From: North East Arkansas

Glad to help. I miss my 67!

Apr 24, 2014 | 09:38 PM

orich

Lead Driver

Joined: Aug 2003

Posts: 7,592

Likes: 10

From: **** hole San Jose ca.

Aw popeye we like closure this is what we like to hear on this site. Now your back up & running with little down time great..
Now Happy motoring glad you got her fixed soon..
orich

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Apr 25, 2014 | 08:05 AM

Red69

Tuned

Joined: Dec 2004

Posts: 340

Likes: 8

From: Rock Hill, SC

Glad you got her fixed. I had the engine stays running problem on my 69 and had to pull the wire from the solenoid that feeds the ignition while cranking. Changing the solenoid didn't fix it. The other problem that started later was the ignition would break up at about 4,500 rpm.

After some head scratching I took the alternator to a repair shop to be checked even though it was keeping the battery charged and found the diode bank was bad allowing voltage to back feed to the ignition circuit.

At first I thought you might have the same thing.