Question about 1984 Ford Crown Victoria

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I need to know the proper firing order for a 84 ltd crown vic wagon

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  • cy schousboe May 11, 2010

    What size engine?

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Anonymous

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Ignition Firing Order On
Ford 5.0L HO (High Output) Engines

There seems to be much confusion about the firing order on Ford 5.0L HO (High Output) engines.

Contrary to the plain 5.0L engine, the HO (High Output) version uses the same firing order as the 5.8L engine. This is probably the case because early 5.0L HO engines used a 5.8L marine camshaft.

The firing order for the standard 5.0L is: 1-5-4-2-6-3-7-8. The firing order for the HO engine is: 1-3-7-2-6-5-4-8. The rotor inside the distributor rotates counterclockwise on both engines (see illustration).

Using the plain 5.0L firing order on the HO engine does work, however the engines will have low vacuum and very poor idle. At higher rpm it appears to smooth out, but is very low on horse power, not at all what the customer will expect from this potent power plant.

Posted on Oct 05, 2009

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Bruce Hathcock

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1,3,7,2,6,5,4,8

Posted on Oct 05, 2009

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I do not know if you have the 5.0L or 5.8L; however I have included both below.

For the 5.0L
Firing Order:
1-5-4-2-6-3-7-8
Cylinders:
.......(back).......
|..4..|........|..8..|
|..3..|........|..7..|
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