How to check your ford modular coil on a 4.6- 5.4- 6.8

If you have a check engine light and get a p0301 - p0308 code its a coil more than likely so here's what to check and what to do to fix it. Coil should ohm around 1.8 -1.9 ohms area .
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[@kingofvoices1]

Finally, someone showing how to test one that's not installed. Thank you

[@MattStriker252]

You just saved me $950. Shop wanted $1,000 to replace all the coil packs. Followed your video and fixed it myself for $50! All studdering and knocking is gone. Good karma your way, sir! Thank you!

[@CodytheCarGuy]

Matt Smith Glad it helped !! I have so many Ford and they are so picky on those coils so i knew all about them and what to look for so here is the video lol

[@MattStriker252]

You should know the effect this video had. Watching a video of someone super smart as you. Fixed my car. Blows my mind how many people way over pay for car service.

[@CodytheCarGuy]

Thanks many more videos on the way, i have a lot of fords and build custom builds so im glad i got to help you save some bucks !!

[@YourMom-dj3yb]

I have 10 new coils from Ford, all 10 have the same resistance as the coils that came out. Except one. The key, that you missed here, is checking resistance from the B+ terminal, to the spring, and coil driver, to the spring. And that is how you do it properly.

[@jessiahperea]

What’s the b+ terminal?

[@morelearning7777]

thank you.been a diesel mechanic 35 years. simple to the point fixed my expedition. keep up the good work.

[@prospector7777]

Hey Cody, liked the video. Liked the comments too about the dielectric grease placements and the other test to the coil to see if it sparks.

[@rogerhockemier9904]

Hey thanks for the video I replaced my coils about two years ago I just tuned up the car and it started farting and bucking checked the codes had some miss fires I did not know that the spring came out of the coil I am going to pull all the coils and service them now thank you for the video again

[@mathesar]

Thanks for the video, was chasing a misfire in a 2000 Mustang GT and turned out to be a coil which had both corrosion at the spring connector and a nice crack towards bottom of the boot, replaced boot & cleaned everything, car running fine now.

[@tyronnfields7945]

Hey Cody..great video straight to the point with the 2003-09 Fords P0316 and P0308 are common. I give u a 10..Awesome job!

[@billhopkins4263]

Would have been very helpful if you told what setting on your meter to use..

[@wyattsdad8561]

Right? Haha I mean you’d use the ohm setting but my meter has a few ohm settings.

[@Ihitbombs257]

All i can say is you saved me hundreds of dollars. Thank you for making this video.

[@Guillotines_For_Globalists]

I just tested 19 coils, all gave ohm readings of 0.7-0.9, including the 8 coils that are on my car that are working fine.

[@AhPhoey]

My coils tested at .7, too. Not sure why his coils read so high.

[@garytripp8809]

Hey Cody question ? I have checked my coils on 2003 v10 6.8 liter .I'm getting 1.2 a few 1.4 and 1.8 how do I know what ohm reading I should be getting should all the readings be the same ...really need some help thanks

[@rounddancefan1]

can this be done while the coils are still on the vehical so i dont have to pull all the spark plugs? right now my truck is shaking really bad & also it started having blue smoke at start up for about 10 minutes after starting it up.

[@waynehonig1754]

hey cody !! thanks for this info ! got my f250 hummin again ! great info ! saved me a big repair bill ! keep up the good work man !!!

[@gabegarcia1199]

Great information and demonstration. Only video of this kind. Thumbs up

[@Bronckin]

What was the setting on your multimeter for the test...?

[@nc818]

I’ve had my truck for 12 years and got what I knew was a misfire. I took it in for a new spark plug and they told Me p0345 the engine needs to be replaced, replaced spark plug per customer request, no change in rough idle or power loss. Looked under the hood and they didn’t plug the coil in all the way. Makes me wonder if they even changed the spark plug and decided just to burn me for having an old truck with a p0345 and a misfire cylinder 5. Plugged the coil in and it runs better but still roughy idols and only gives a p0345 and p0349. After seeing this video I will change the coil. I know my truck and am positive that’s the problem and not the camshaft

[@gabegarcia1199]

Thanks. Great video . I'm trying to figure out mine as well

[@MrHotrd]

hi really good explanation. only thing is my check engine light isnt on so i couldnt scan it. I have a Actron scanner andr an a scan on it anyway and came back fine. my plugs are new.its missing at idle and when driving. is it possible a coil pack is going out but not trigering engin light to come on?

[@CodytheCarGuy]

wow so i just got the email for this comment today. The answer is yes these coils if dirty at the connection under the boot is corroded it will make it have a miss at idle and not give a check engine light.

[@thesetruths1404]

The set of $67 ones I got for replacement for 2001 5.4L Excursion, all 8 read as follows: Primary: 0.4 ohms Secondary: 5,900 to 5,990 ohms.

[@unkhammunankh7252]

What pins are you checking for the resistance? Is it 1-2, 1-3 or 2-3? Thanks!

[@williewright9689]

Best aftermarket ignition coil packs 2004f150 4.6

[@gypsiewanderer24]

Dealing with this now on a 2016 ford e350 shuttle bus with the v10. Brought it into a shop for a new water pump and now it misfires. Getting 6 different codes right now.

[@dasteufelhund]

Can I modify the boot with more durable like hard plastic, delrin or polyurethane type so it won't crack? GREAT VIDEO!!!!

[@DocZoidberg549]

An ohm gauge will not tell you the coil is bad except if it is open. A power probe is the best way to check coils. I got the same reading on a bad coil and a good coil. Use a power probe.

[@ThurstonHowell3rd]

Well a multi-meter can also be used to check for power right?

[@jonroberts6518]

I don't have cop, I have regular coils and wires to plugs my mustang does miss but throws no codes what so ever. Once it warms up and I cut the car off and try to crank it back up , it doesn't. Have to let it cool down then fires back up easy.and will run and idle never stalls or die out, I believe it's the coil packs , what else can be the cause of hesitate and missing ?

[@meltsnowflakes2893]

I have a set of 4.6 coil packs that are new, i just bought the 5.4 f150 can I just swap the boot? not sure if the 4.6 coil is interchangeable with 5.4 coil

[@MrMikewr]

Can you check the coils resistance while still mounted on the engine?

[@fiestasiphil]

my 2003 gt has delveloped a misfire but no check engine light, could it still be a coil fault?

[@CodytheCarGuy]

+fiestasiphil yes it can be a weak plug or coil

[@travisatwood7035]

Rick, same issues here , bad miss under load , snap on scanner says no codes ..no check engine light on also

[@hometownhvac1284]

I have this same problem. No codes ,no light .

[@PastorJimOliver]

Hi Cody, Thanks for the video. I just replaced my plugs and coils on my 05 explorer because of bucking between 40 and 50 mph. At 98K, it was time. Problem is that the engine is missing worse than before. Looking for problems, I found that all new coils (and old) ohm-out 1.8 or so, haven't actually checked the new plugs but being Motorcraft, I figure that they are ok. I also ohmed the fuel injectors that I could reach and they also came up at 1.8. Any ideas? No engine light at all, by the way.

[@lamarwilson8608]

Jim did you ever figure yours out? I have one that feels like it's missing. No check engine light, already replaced all the spark plugs.

[@PastorJimOliver]

@@lamarwilson8608 thanks for the reply! I have since discovered that my expedition is eating plugs! I have used both styles of motorcraft plugs (assured by my local ford dealer that they are correct plugs) only to have the tips break off, causing missing and check engine light. I have started replacing the Motorcraft plugs with Autolite plugs at the advice of my mechanic. I have gone 6 months without changing a plug so far!

[@cory4548]

I bought a multi-meter and the shop told me two coil packs were bad, I need to figure out with two it is. What do I turn the dial on the multi-meter to, to test the coil pack on a 2001 Ford F-150 4.6 V8. I bought some brand new and not sure which ones to replace.

[@jonesja11]

Ohm

[@XXfranco209XX]

I had a misfire on #6 of my 4.6 . I checked the spark plugs and they looked brown and nasty . plus they had oil in the threads . I know that isn't normal . any idea of why there's oil ?

[@DillonTurner395]

+Francisco Franco Valve Cover gaskets more than likely fairly easy to replace

[@RichardSpeights]

Is that supposed to be the Moon? I hate to break it to you, but it's rotation is once every twenty-nine and a half days.

[@bucanen]

What position you place your ohmeter ?? 200, 2000, 20k, 2000k or 20m

[@ryanbundy9939]

+Michel Boisvert probably the lowest setting. That is what I used

[@techman8570]

Too bad these back yard quikieos are not very detail oriented. . .Depends on your meter and the coil rating. Check your manual for the correct ohm value then set your ohm meter to the number just above that rating. for my meter, I use the 0 ~ 20k because my ohm value should be 5.5k ohms.

[@giomedina5960]

thanks man, going to check out my 04 mustang gt. There was a leak of coolant from the heater hose going into the spark plug well. I swapped the spark plug but it must have damaged the coil as well.

[@rounddancefan1]

4/21/18 @ 4:30pm tried this and doesnt work mine was 0.1 ohms on all 8 even the recent newest coil that was replaced.

[@rounddancefan1]

ok i was able to find some1 to scan it out for a code and I have a misfire on 1 so i switched it with another coil, scanned it again and still 1 so the guy said put a new plug in. i had them dam plugs replaced last yr in april.

[@jonathanhensley8655]

What kind of tester is that you are using to test the oms?

[@tedbeemer2352]

oms meter !

[@davidc4996]

Thanks.. nice simply video

[@damianbarron7927]

Thank you sir!

[@keithrhea1]

Die electric grease is an insulator and should not be applied to the spring/pin on the bottom side of the coil where u cleaned. Only apply this to the boot on the outside.

[@comamche8672]

Keith Rhea Generally spark plugs are located in areas of high temperature, and the grease is formulated to withstand the temperature range expected. It can be applied to the actual contact as well, because the contact pressure is sufficient to penetrate the grease. Doing so on such high pressure contact surfaces between different metals has the advantage of sealing the contact area against electrolytes that might cause rapid galvanic corrosion.

[@keithrhea1]

***** You mean electrolysis? Dielectric grease can be used to keep water out thus I said not on contact points. Do your self a favor do a resistance check with and without the grease. You will find the answer. The grease itself will not keep metals with severe difference on the anodic index from corrosion. Have a good one.

[@radhotchilipeppers7654]

+Bob Cappiello Di-electric grease does not conduct electricity and should not be applied where you want a good connection.....

[@clintg3435]

Ford factory service DVD explicitly requires the use of dielectric grease at this exact point.

[@jeogrz]

What was the setting on your multimeter for the test...?my multimeter have 2000k 200k 20k 2000 and 200

[@thelastdragon3242]

200

[@TropicBreezeRealty]

Is it at all possible to attach a plug wire to the end of a modular coil? Instead of the Boot/Spring

[@bigbill2376]

Dielectric Grease is an insulator. You should never apply it to any connection points.

[@ALONSOIBARRA1967]

Thank you so much, really i appreciate your effort

[@marklowe7431]

Great advice, cheers from Australia

[@emilyjanx4295]

you rock vato, thank you for your time and knowledge.

[@regigilman1703]

Dont put anyting that will restrict the boot from following the coil out Or you will find your self fishing 4 the boot thats left behind....

[@lordsparkle4007]

I checked the primary on my coils and got 0.00 is that bad? Thanks

[@radhotchilipeppers7654]

Di-electric grease does not conduct electricity and should not be applied where you want a good connection.....

[@clintg3435]

Ford factory service manual recommends dielectric grease be applied to the connection between coil and spark plug.

[@wadepatton2433]

it's not there to conduct electricity, it is there to prevent corrosion/oxidation. Clean metals conduct, corrosion does not.

[@griffon3275]

The dielectric grease is to keep corrosion at bay and repel moisture and is used in all automotive related electronic ignition situations... maybe in a home PC or other indoor environments there is a better solution but for the automotive industry di electric grease is the go to substance ... for plugwires a cheaper alternative in NAPA caliper grease it works in same fashion does not dry up or swell rubber and repels water and been using it on coils and plug wires for over 30 years ..why ? because a fucking lil tub of di electric grease is $35 plus (15 years ago ) and a tube of napa caliper grease is less then $5 and twice as much lube .. I used to get the tubs of di electric grease from GM free as a tech while doing repairs

[@melvinlewiswellsjr.2619]

thanks😎😎😎

[@FLseahawk]

You rock!!

[@CodytheCarGuy]

Thanks !

[@gunsafe357]

Fred Berkeley California, Thank you for making a great Video. This really save me a lot of $$$..on my 02 4.6 F150.

[@imakeshitlookeasy5527]

You did not test after you cleaned them.

[@ryanwyrick6947]

It truly amazes me how many so-called good mechanics never talk about the other end we all know things go bad on this end but for god sakes you just broke out the measuring device why would you not show us the other end or at least speak on it how to do it where to go who should I ask blah blah blah blah blah no one literally no one talks about the coil pack side... By the way if you're confused about what I'm saying and think I'm confused I'm speaking of non cop systems because you're just as many 10th Generation Ford out there with non cop Motors as far as I'm concerned matter of fact I've never owned a cop motor and I've had Crown Victorias and F150 is all up in the 97-98 era.. the most common culprit for a pesky misfire feeling is the entire ignition system meaning one or the other or the other or the other or all of the above or whatever may be a combination of two or three maybe even moisture coming through a head gasket who cares who knows the point is they all play a part and it's very rare that one of the mediums fails without the others failing as well and with that said it's usually something creating this failure so with all that said I've never seen a bad boot they're either too old or just fine go replace all of it the biggest culprit I've ever seen in this whole entire ignition system is the wires themselves the quality of cables and if you're not running Motorcraft you probably have a misfire and if you do have Motorcraft they are probably Rusty and old and ready to crumble apart I've seen wires make more of a difference than almost dead plugs now as far as the coil pack goes hey it's all about testing it before you just go buy two new ones but that's my point here is I can learn all this other basic mainstream bullshit from any one of these millions of posts but where do I go to figure out the coil pack side? And then I called oreilly just for the fun of it to ask them if they test them and he tells me they don't have the equipment I was blown away I thought all you needed was a multimeter.

[@philippinelife712]

Complete lack of punctuation impedes coherence.