1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
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HELP 1979*

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Old 11-23-2015, 08:26 AM
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Exclamation HELP 1979*

I have some questions about my truck and I am new to the site..
 
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Old 11-23-2015, 08:43 AM
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Provide the configuration of the truck (engine, trans, etc) ... and ask away.
 
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Old 11-23-2015, 11:04 AM
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Welcome to FTE, ask away or explain what the problems are, because we all love to help folks and show off our Ford truckknowledgeness. lol
 
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Old 11-23-2015, 11:44 AM
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Welcome, and as said before, give us the basics of the vehicle, the illness and shoot.

What we don't know, we'll make up....haahahaha.
 
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Old 11-23-2015, 03:29 PM
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Red face Big Blue Truck

I have a 79' Blue Ford truck with a 351 engine, 4x4. I have been having some issues with her. After work I started blue up and started driving away, was having no problems. Then maybe 10 minutes later it seemed like it slipped out of gear and revved up a little, I tried to push down on the gas but nothing happened and then it died on me. I tried to start it back up and it wont start, sounds like it wants to be nothing. I have power to everything, checked the battery connection, changed the distributor cap, and she still wont start..
I have pictures of it on my profile if you want to check her out!!

Please Help me out
 
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Old 11-23-2015, 03:57 PM
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Automatic or standard transmission? When you say you tried to start it and nothing happened . Did the starter do any thing at all ?
 
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Old 11-23-2015, 08:30 PM
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If it's turning over but not trying to start, check for spark and fuel.
Pull the coil wire out of the distributor cap and hold it about 1/4" away from a good ground and have someone turn the key to start. You should see a strong blue-white spark jump the gap at the coil wire. If you don't see that, my first suspicion would be the dura-spark module.
If you see good spark, next remove the air filter cover and look down the throat of the carb. Pump the throttle, you should see two strong jets of gas shoot into the throat of the carb.
Try this and report back.
 
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Old 11-24-2015, 09:10 AM
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Talking 79'

Automatic- it's turning over but not trying to start.
Thanks Mike I will try that and get back to you!!
 
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Old 11-24-2015, 09:30 AM
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You aren't out of gas are you? Sounds like what 1 does when it runs out.
 
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Old 11-24-2015, 10:22 AM
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I had thought that at first, because the gas tank leaks a little. I filled the tank before I left for work that morning. I dumped some gas into the tank and a little into the carb, and got nothing.
 
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Old 11-24-2015, 12:06 PM
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So no fire. Gotta start at the coil. See if it is firing. If not then very good possibility its the duraspark icm. These are actually cheap enough you should change it anyhow if it hasnt been changed in a while. If you do have fire from the coil to the distributor you need to check plug wires. Just check one and if it fires most likely they are ok. If it fires pull the plug. Not really likely all 8 plugs went at the same time.But check to make sure the 1 fires when grounded. If you dont have fire from plug wires then probably the stator in distributor.
 
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Old 11-24-2015, 01:10 PM
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If there's no spark it's probably the Ignition Control Module (as many have said already). These things are notorious for going bad and creating a whole mess of strange symptoms. Sometimes they work intermediately, sometimes they just make the truck run rough, and sometimes they fail all at once. It's actually a good idea to keep a spare ICM with the truck since they are relatively cheap.
 
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Old 11-24-2015, 08:55 PM
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If it does turn out to be the ignition module, spend the bucks and get a genuine Ford/Motorcraft module. The aftermarket versions (aka "Chinese made") are notorious for going bad in short order and also being bad right out of the box.
 
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Old 11-25-2015, 04:40 AM
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^^ what he said. Depending on which 1 your truck uses they arent but about $42 @ rockauto. Probably get them local for about the same minus the shipping.
 
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Old 11-25-2015, 08:17 AM
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It was the ignition module, I got one from our local Ford dealer and got it hooker up. Blue started right up.. Thank you for all of your help!! Big Blue is back on the road and this girl is Happy!
 


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