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1984 f250 fires only when rolling back key switch

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  • Cars & Trucks Master
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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.

Posted on Jul 01, 2017

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Posted on Jan 02, 2017

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1 Answer

How to change ignition on 1984 f250


Hi John,I am assuming you meant ignition switch,here's a link to it,if I am wrong,repost it and I will send another link. SAVE 20 GET BONUS 10 GIFT CARD ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE Here's another link to a new ignition switch. Ignition Switch at AutoZone com Best Ignition Switch Parts for Cars Trucks...

Jun 17, 2015 | 1984 Ford F 250

1 Answer

I need a firing order diagram for 1997 f250 351 windsor


Posted by Asker for a 1997 Ford F250 under the 1985 Ford 250 Category.
I have included BOTH the 1985 and 1997 F250 351cid=5.8L Firing Orders below...

1985 Ford F250 351CI = 5.8L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
........(back)........
|..4..|........|..8..|
|..3..|........|..7..|
|..2..|........|..6..|
|..1..|........|..5..|
.......(front)
Distributor:
....(back)
[X].3...1
7............8
2............4
.....6...5.[X]-clip
....(front)

For the 1997 Ford F250 351CI = 5.8L V8:
Firing Order:
1-5-4-2-6-3-7-8
Cylinders:
........(back).......
|..4..|........|..8..|
|..3..|........|..7..|
|..2..|........|..6..|
|..1..|........|..5..|
.......(front)
Distributor:
.....(back)
[X].5...1
4............8
2............7
.....6...3.[X]-clip
.....(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!


May 11, 2010 | 1985 Ford F 250

1 Answer

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the thick lug takes the battery cable (positive) and the solenoid wire (small wire) goes to the ignition electrical switch

Mar 27, 2010 | 1984 Ford F 250

1 Answer

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You said you tightened the battery cables, did you check the other end of the negative where it bolts to the engine. When you tightened the cables you also used a battery brush and cleaned the posts and ends?

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1 Answer

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rteplace ur distrubutor they do wear out bad pick up in it dont rebuild fast to get new 1 and just as cheep

May 11, 2009 | 1984 Ford F 250

1 Answer

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this is a common ford ignition cylinder problem.you can buy a new key cylinder at a checker or autozone cheap.remove column cover and push small metal button and cylinder comes out

Jan 17, 2009 | 2001 Ford F250 Super Duty Super Cab

1 Answer

Lost key then screwed up switch


take a drill and drill out the tumblers use small bits to start off and then use large bits to finish out the job when the tumblers fall out take a small punch to knock out pin that holds the ignition in place then put in a new one be sure not to make a big hole of where the pin fits into because if you do the new switch will just fall out when you remove the key

Dec 05, 2008 | 1984 Ford F 250

1 Answer

1984 944 ingition


Bad ignition switch, you might be able to replace just the switch contacts on the back of the ignition tumbler.

Jun 19, 2008 | 1984 Porsche 944

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