Spark plug replacement

Tiny
RICHARD_REFFUSE
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
Instructions and steps to replace spark plugs in a 2002 f150 4.6l
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Saturday, March 5th, 2011 AT 7:41 PM

29 Replies

Tiny
BMRFIXIT
  • EXPERT
Hello,

This job takes a special spark plug socket to do the job. Here is a guide to help walk you thought he steps and a video to show you how its done on your truck.

https://www.2carpros.com/articles/how-to-change-spark-plugs

and

https://youtu.be/E6oier7agkY

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Cheers,
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Sunday, March 6th, 2011 AT 2:34 AM
Tiny
ALECIA PALMER
  • MEMBER
Thanks for this post helped me a bunch. I love this site.
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Saturday, December 1st, 2018 AT 8:44 AM
Tiny
LKRAV3
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 103,000 MILES
I've had a plug coil replaced in the past ($175-$190 or so) and now have another cylinder misfire code. This time for #5 - apparently the front right, as I'm facing the engine. I'd love to tackle this myself, given the price of parts vs. Taking it to a shop.
The only think I can't seem to find good info on is the fuel rail that runs across the top of the plugs/coils.
I can tell that I'll have to move a bracket/brace on that side, to get down there, but what about the rail? Does that have to come off, too, in order to work on the c.O.P?
Thanks for any help.
Luke
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
BILLYMAC
  • EXPERT
HI
No luke the coil will come past the rail once you remove the hold down bolt the boots are rubber
they will move around the rail

billymac
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
LKRAV3
  • MEMBER
I'm happy to report back that I bought the part locally for $40 plus another $1 for the di-electric grease and knocked it out last night. Truck now runs smooth as silk again. What a feeling to have it fixed - and know that I saved around $150 vs. Getting it done at a repair shop, and who knows how much more vs. Taking it to the dealer.

I did go ahead and take off the plastic air intake cover (3 bolts - the plastic piece that says "4.6l Triton" on it.). Also moved the bracket that holds the power steering fluid reservoir. Just made it easier to get my hands in there. Couldn't be more pleased with how it went, and I will not hesitate to take the rest of them on some time soon.

Didn't want to wait for an eBay order to ship, as this chugging/missing had been going on already for a couple of weeks. But, I am going to order a set ($80 (or less!) On eBay) and either have them on hand for the next time one goes out, or just dive in and do 'em all + the plugs sometime soon. My local Ford dlrshp parts dept. Wanted $97! For one coil. (Bought my single at O'Reilly's for $39.99)

Thanks again, Billymac, for the encouragement.
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
APRILINNY
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 129,000 MILES
I am replacing the coil over for cylinder 1 and all the spark plugs. I need to know which of the cylinders is cylinder 1 so I can get it replaced. Thanks so much!
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
BLACKOP555
  • EXPERT
Passanger side of engine, very first plug closest to the front of vehicle.
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
1BIEMER
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
I have a 2002 ford f-150, V8 5.4 liter engine, with about 118,000 miles on it. I've kept the vehicle in very good condition since the day I bought it new. But lately i've been experiencing a violent jerking of the truck when I stay in the range of about 40-50 mph, at about 2500-3500 rpm. I've had it in the shop with the suspicion it might be a transmission problem, had the torque converter replaced, changed the spark plugs, etc. But nothing has solved it. If you could help me out, it'd be greatly appreciated.

Thanks,
Alex
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
MERLIN2021
  • EXPERT
Usually this is a MAF sensor at the air filter box. Can also be 02 sensors, but not as likley. Buy some MAF sensor cleaner clean it and test drive. May need to replace it as cleaning does not always solve the problem!
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
CALEB31410
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 119,000 MILES
I changed the spark plugs on my truck and everything is running right but my service engine light is on. Is this normal when you replace things like spark plugs and is there a way to reset it?
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
BLACKOP555
  • EXPERT
You can reset it by rumoving the batteyr cables for a few minutes. However if there is a problme it will delte it.

I suggest having a autopart store check and clear the codes for you.

Post any back.
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
H1HARLEY
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 12,000 MILES
Ii REPLACED COIL PACK AND SPARK PLUG 6 months ago on Cylander 3. Changed the rest to do a tune up and not the #3. Seemed to be fine on test drive then heard a loud bang or pop and the #3 coil pack blew off. The threads on the spark plug seem to be fine no damage. Coil pack damaged. What could have caused this and can I put a new spark plug and coil pack back on without further damage
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
I'll assume you have the 5.4L V8 because there have been notices of this happening. Everything that I have read pertaining to this deals with the threads tearing out of the head because of the shallow thread deapth. Before you try to replace the plug, check to see if you can tell if there was damage to the threads in the head where the plug goes. Let me know so I can further advise.

Joe
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
MLHOOD
  • MEMBER
  • 2002 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 99,871 MILES
I need to change the spark plugs on my truck but can not find them. WHere are they located at? V8 4.L
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
DAVE H
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/266999_wires_1.jpg

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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
DOCMORGAN
  • MEMBER
  • 2002 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 255,000 MILES
Last week filled up and thought I got a tank of bad gas. Tried dry gas and fuel injector cleaner as a fix. Refiled next week with tank of premium. Still sounds like it has spark plug knock. Today changed the plugs and plug wires and as you give it gas it still has a chattered knock like bad gas or bad plugs or wires. Havent had the money for diagnostic at local ford dealer. What else could it be?Pcv-o2 censors-fuel filter? HELP its kiling my gas millage. This truck has been one of the best trucks Ive ever owned and Im going to drive it til the wheels fall off its spotless in mint condition-just lots of highway millage.
Thanks for any help.
Best reguards bill
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
DOCMORGAN
  • MEMBER
Thanks for all the help guys. Sorry I didnt have the money to donate to this sight for an answer. No one helped me here. Not one response. What a waste of time. Its going to the ford dealership so I can get an answer.
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
BILLCOWBOY
  • MEMBER
  • 2001 FORD F-150
Engine Mechanical problem
2001 Ford F150 6 cyl Two Wheel Drive Automatic

My 2001 F150 has 80K. Starts and runs ok. Fuel economy is 15-16 mpg city .. 18-19 mpg highway.
Last fall mpg started dropping 12mpg city and 15 mpg highway. I've heard from ford mechanics and serviceman that the plugs are good for 100k
Here the truck is at 80k. Would I get better fuel economy and performance if I go ahead and change the plugs? Thanks. George
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
BLACKOP555
  • EXPERT
Plugs arnt gonna increase your mileage that much. Unless your noticing driveability issues.

Whens the last time you had a tune up? I.E new air filter, fuel filter.
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)
Tiny
TWILYTE67
  • MEMBER
  • 2001 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
How do I remove spark plugs in 2001 ford f150 5.4 L triton
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Saturday, December 1st, 2018 AT 11:53 AM (Merged)

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