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Ignition diagram unplug wire from coil it will run in the on or off position,plug wire in it will run when the switch is in the off postion any ideas

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1984 f250 fires only when rolling back key switch


If your saying no spark at the plugs, The positive side of ignition coil should be hot, with key in crank or run position. If it isn't, I'd have to check ignition switch and wiring circuits.
I don't have a good wiring diagram for your model year, I can't look up wiring.

Jul 01, 2017 | Cars & Trucks

1 Answer

I need a wiring diagram of a 1960 ford f-100 6 cylinder ignation coil


I don't have wiring diagram for that year.
I don't mind talking to you.
The positive side of the coil gets voltage from ignition switch, the negative side of the coil goes to distributor and ignition points on a points type system.
Some makes and models, when cranking, everything gets full battery voltage. When it starts and you release the key it springs back to the run position. In the run position, voltage to the coil may go through resistor block or resistor wire, the purpose is so the points on a points ignition doesn't have to deal with full battery voltage all the time. Helps the points last longer.
Just my opinion.

May 30, 2017 | Ford Cars & Trucks

1 Answer

83 ford e350 starts to the start position and then dies in the run position need help


Sounds like you have a wiring problem, check the plug connector and wiring that plugs into the ignition switch, look for discoloration or signs of over heating or melting, if ok , unplug the connector from the ignition switch and with 2 jumper wires you can hot wire you car, and test if it stays running, jump the hot wire to the coil wire, and jump the hot wire from the starter to ground until it starts up.

Nov 30, 2015 | Ford Cars & Trucks

1 Answer

Wire 253 holden boat motor starter alternator coil basic diagram


batter positive to one big terminal of the starter solenoid--large wire as in a car ( the other big terminal will have a wire from it going into the starter)
a wire from the start point of the ignition switch to the small terminal of the start solenoid .( This to energize the starter solenoid to start the engine.) a large wire ( 30 amp capacity ) from the positive terminal of the battery going to the BAT terminal of the alternator the plug in the back of the alternator will go to the battery light or ammeter.. wires from the start and run positions of the ignition switch to the coil. One to provide power when the starter is engaged and the other from the run position to provide power to keep the engine running
basic but it will work

Jan 25, 2015 | Holden Cars & Trucks

1 Answer

How can I jump the starter on my 91 camaro?


hot wire starter you can short out ignition switch and wiring. to jump starter ignition switch start postion.you have to run 10 gauge jumper wire from the starter solenoid positive battery terminal to starter switch or S terminal on starter solenoid this procedure take two people but better remove starter replace starter solenoid. trying jumping off starter on camaro would be dangerous you have jack up car to get to starter and wiring person laying under car hot wiring starter while other person hold ignition start position put person under car in deadly position just remove starter have auto parts check it out first replace starter or solenoid if either bad. easier hot wire starter if starter under hood like my 1977 vega monza had starter at top could take long screw driver jump starter off.on the four cylinders engines back in the 70s. camaro starter under car dangerous trying to hot wire not a good idea.

May 07, 2013 | Cars & Trucks

1 Answer

1987 dodge ramcharger stay running after key is in run position.


The ignition switch has two positions inside the switch. There is an ignition feed when the ignition is in the crank position and another feed for the run position.

Both feeds may come out the same external terminal on the switch, but internally there are 2 contact points, one for each positon on the keyswitch.

The common symptom is the engine will hit or run briefly off the startup and then die. It does this because it loses the ignition feed. Not really familiar with the module wiring for a Chrysler, but I was 37 Years old when your car was built. In the day, you could bypass the ignition switch and wire a power source(alligator clip) directly to the coil + terminal and once the car was started it continued to run this way.

Then some nut invented the solid-state Module. It complicates testing and you know the rest.

You can get wiring diagrams free at Autozone.com by registering your car. I remember tuning up the dual-point distributors and the 440 Six-Packs for this era car.

Please rate my info.

Nov 06, 2012 | Cars & Trucks

1 Answer

Ignition coils are heating up and will not restart until they cool. need wiring diagram for installing an external resister


Simple solution will be to run a wire from the ignition "on" position to the resistor and then from the resistor to the coil positive. Then run a seperate wire from the ignition "start" position directly to the coil positive. To determine which wire is wich on the ignition you will need a voltmeter or test lamp to measure each of the terminals on the rear of the ignition in each position.

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The above set-up will give a lower voltage to the coil at normal running and an increased voltage at start-up as it bypasses the resistor when starting. This may cause a new set of problems such as low coil voltage and subsequent weak spark. I would suggest that you first make sure you have the correct type of sparkplug fitted. It may be that your vehicle originally came with suppressed plugs or suppressed plug wires. If the suppressors were removed it may cause high current draw on the secondary side of the coil and also lead to overheating.

Sep 13, 2011 | Ford F-250 Cars & Trucks

1 Answer

Car stop running just cut off.could it be the starter.


No the starter has nothing to do with your car staying running you should check fuel issues fuel pump injectors regulators. Also most likely check ignition components spark plugs spark plug wires distributor cap and rotor or coil if equipped either or and check coil pick up sits underneth coil packs i would go to advanced auto parts and they can check coil pick up and coils or you can by pulling out spark plug and putting it back in wire set spark plug next to engine block if you see blue spark coil is good if orange bad not hot enough to ignite gasoline. is your check engine light on if so get codes read for free at autozone or advanced auto could also be crankshaft postion sensor or camshaft postion sensor lmk if it helps. if it helps please leave 4 star reviw and good comment thanks

Sep 02, 2011 | 2003 Mercury Grand Marquis

1 Answer

Need a wiring diagram for a 1969 Ford F250.


there should be a slot for each wire on back of ignition play with them till you get it right cant hurt anything

Jan 14, 2010 | Ford F-250 Cars & Trucks

1 Answer

Need coil wiring diagram


Contact points cover open.

Left side points are for cylinders 1 and 4.
Right side points are for cylinders 2 and 3

Left side points have a White wire coming from it.
Right side points have a Black wire coming from it.

One coil runs two cylinders.

One coil runs cylinders 1 and 4.
One coil runs cylinders 2 and 3.

No matter what style of ignition coil you use, the Black wire will connect to the Points. Whatever other color of wire they use, connects to the ignition switch.

BUT, check the specifications for the coils you're going to install. Connect the Negative side to the points. The Positive side to the ignition switch.

The Orange wire with a White stripe, coming out of the harness of the Suzuki Gs550 is from the ignition switch. It goes to a splice connector, and from there goes to two wires. The wires split off into one wire for each coil.

There is a White wire on the coil, that is used for Cylinders 1 and 4.
There is a Black wire on the coil, that is used for Cylinders 2 and 3.


Oct 21, 2009 | 1979 Suzuki Gs 550 L

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