Ford F-250 Pickup Engine >> IGNITION FIRING ORDER ON HO ENGINES

Auto Parts Search


Ford F-250 Pickup Engine >> IGNITION FIRING ORDER ON HO ENGINES


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.

The AERA Technical Committee
Looking for replacement Ford F-250 Pickup engines? Visit our online Rebuilt Engines Store. Need to fix your Ford F-250 Pickup engine? Access here the comprehensive online repair guide for your Ford F-250 Pickup engine. Click Here to find a used Ford F-250 Pickup engine.

Shop online for auto body parts, engines, wheels, lights...

Click here to view more details about 1974 Ford F-250 Pickup Front Fender, Driver Side1974 Ford F-250 Pickup Front Fender, Driver Side.

Source: Auto Body Parts Store

$95.27

Click here to view more details about 1974 Ford F-250 Pickup Headlight1974 Ford F-250 Pickup Headlight, Bulbs included; Sealed beam type; Round; DOT and SAE approved; A high quality, direct fit OE replacement headlight assembly..

Source: Auto Body Parts Store

$9.32

Click here to view more details2008 Ford Ranger Pickup 2WD Proefx Stainless Steel Side Step Bars, Proefx Stainless Steel Side Step Bars, , .

Source: Wheels / Rims, Mirrors & Lights Store

$128.50

Click here to view more details about 1987 Ford F-250 Pickup V8, 5.8 L, 351 CID Rebuilt Engine1987 Ford F-250 Pickup V8, 5.8 L, 351 CID Rebuilt Engine, Windsor, HO, All HO's have 4bbl carb, if 2bbl it is NOT HO, non roller., Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,416.00

Click here to view more details1992 Ford F-250 Pickup Used Bed Assembly, Black, EXTENDED 2DR, FLEETSIDE, XLT DIAMOND PLATE BED CAPS, HOLES DRILLED FOR TOOLBOX, Very Good.

Source: Used Auto Parts Store

$1,021.00

Click here to view more details1990 Ford F-250 Pickup Used A/C Compressor, 4.0, AUTO, 4X4 integral AC, Very Good.

Source: Used Auto Parts Store

$103.00
More parts
Help me findSearch
Auto Repair Quick Search
Help me find
Search DIY repair manuals by VIN...
Vehicle Identification Number is a unique serial number used by the automotive industry to identify individual motor vehicles

Find out what info we have for your vehicle

Get the Complete Technical Service Bulletins!
Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your Ford F-250 Pickup vehicle.
Access the Complete guide!
Need To Fix Your Car or Truck?
Save Money With Free Car Insurance Quote
FREE car insurance quote
Enter Zip Code:
Auto Repair Quick Search
Help me find