Question about 2003 Ford Expedition

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I'm replacing the coil and the spark plug on an 03 Ford Expedition and would like to have a diagram as to which is the 7th cylinder on the engine.

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Its the third one back on the drivers side of the engine,

Posted on Sep 26, 2009

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I need to locate the number 4 spark plug wire to replace the spark plug can you tell me how to locate this wire on a 05 ford expedition


Your vehicle doesn't have spark plug wires . Has coil on plug ignition system . Eight individual coils sitting right on top of the spark plugs . An the spark plugs have the tendency to break in the cylinder head . Does your ford have the 5.4 L 3 valve engine . Your best bet is to take your vehicle to a qualified repair shop that has the tool to take the broken spark plug out off the cylinder head. Ford 4 6L 5 4L 3V Spark Plug Removal Watch this ford tech .

Jun 29, 2016 | Ford Cars & Trucks

1 Answer

MISFIRE ON CYLINDER 4 AND 6 WITH AN ENGINE LIGHT ON


Check the coil packs on the plug if equipped with that type, or the coil packs at the end of the spark plug wires, if so equipped.

Also, check that the fuel injectors are firing on all 8 cylinders.

Definitely, check out what other codes are stored in the computer besides a missing condition.

I have a 1999 Expedition that had a miss on a cylinder, and it turned out to be a bad coil pack. You have 2 cylinders missing, so I would check each cylinder for good spark, or replace the coil packs as necessary to see if that resolves the problem.

Good luck on this repair.

Dec 31, 2010 | 1997 Ford Expedition

1 Answer

I cant find spark plugs


I am writing you the method on how to change sparkplugs, you may now have an idea where spark plug is loacted.

The Ford Expedition uses eight spark plugs to accommodateits eight-cylinder engine. Replacing the spark plugs every 75,000 miles is animportant part of overall vehicle maintenance. 1. Disconnectthe negative (black) battery cable from the battery terminal. Remove thewiring harnesses from the spark plug coils. There will be four on each side ofthe engine block, which you can remove by simply pulling them out of the sparkplug coils. 2. Unscrew the 7mm bolt from each of the spark plug coils usinga socket wrench and 7mm socket. 3. Pull each spark plug coil out of the engine block. Pull themout slowly, being careful not to damage or tear the coils. 4. Use a socket wrench and spark plug socket to unscrew eachspark plug from the engine block. Once you remove these, discard them. 5. Place the new spark plugs into the engine block and tightenthem using the socket wrench and spark plug socket. 6. Slide the spark plug coils back into the engine block. 7. Bolt the spark plug coils back into place using a socketwrench and 7mm socket. 8. Reattachthe wiring harnesses to the spark plug coils. 9 . Connect the negative battery cable to the negative batteryterminal.

Nov 25, 2010 | 2003 Ford Expedition

3 Answers

Need firing order diagram for a 5.4 ford expedition


Check this diagram for 2003 Ford Expedition 4WD 5.4 liter SOHC V-8 VIN "L"...

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Hope helps (remember rated this help).

Jul 05, 2010 | 2003 Ford Expedition

1 Answer

Ignition coil e


The ignition coils are listed from 'A" to "L" (up to 12 cylinders) and they are in sequence according to the firing order. This diagram will help you out, and according to this diagram for your vehicle, "E" is the fifth letter so the fifth cylinder in the firing order is cylinder #6, and as you can see from the diagram that coil "E" or cylinder #6 is the second spark plug or cylinder from the front on the drivers side of the engine.


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Jun 15, 2010 | 2000 Ford Expedition

2 Answers

My 2003 ford expedition reads a code 0303= 3 cylinder misfire, which side of my vehicle would that be on and could replacing ignition coil and spark plug fix it and stop the lose of power and hesitation?


Third cylinder back on the passenger side. I'd recommend changing all 8 coils and spark plugs. These coils don't last long, and once one goes, more will fail soon after. This job also requires removing the fuel rail to gain access to the coil and plugs. I personally have the same SUV and went through the same issue!!

May 08, 2010 | 2003 Ford Expedition

1 Answer

Diagram of spark plug


Check this for 4.6 or 5.4 sizes engine...

2004 Ford Expedition 4.6 liter V-8 VIN "W"

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2004 Ford Expedition 5.4 liter SOHC V-8 VIN "L"

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Hope this help (remember comment and rated this).

May 05, 2010 | 2004 Ford Expedition

1 Answer

How do I change the 7th cyl coil?


its hard to get to.I think it takes a 10mm to get if off,it plugs right on top of the spark plug,replace the boot when you replace the coil

Jan 31, 2010 | 1997 Ford F150 Regular Cab

2 Answers

Check engine light flashes on 99 Ford Expedition, hooked it up to computer and says plug # 3 is bad, I replaced it but the light is still on


Try changing the #3 cylinder spark plug wire or all wires as you probabley have to buy them in a set.

Sep 10, 2009 | 1999 Ford Expedition

2 Answers

Location of 7th cylinder on a 2001 ford expedition 5.4


the order of the park pluggs and coil packs is easy it goes:

driver side passenger side
5 ------ 1
6 ------ 2
7 ------ 3
8 ------ 4

1 through 4 is on the passengers side and 5 though 8 is on the drivers side, and all in order.

Jun 28, 2009 | 2001 Ford Expedition

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