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Truck eats coil pack
 Moderated by: MaDMaXX, Mike69, NoPower
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 Posted: Thu Apr 18th, 2019 02:05 am
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Eddie Money
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Hey y'all, I could use a greater understanding of the coil pack ignitions. My work truck has the 5.4 and I've had coil problems 3 or 4 times in the last year.

My boss likes to save money so the first couple of times he replace only the ones that were bad. As you and anyone else but him would expect, the ones that weren't replaced went bad shortly after. 

I'm getting grief from the boss because it's been to the shop 4 times and it's cost a grand each time. But the 3 trucks that blew trans at $5500 each arent. 

I'm trying to determine if these are going bad because of my driving or if this is a sign of something else that is making them go bad. 

My ranger has never had any problems with its coils and I've had pretty good luck with my personal vehicles because I maintain them. 

I take it pretty hard when I get disrespected by the boss and cant help but return the disrespect. I care more than the others and that's why I take it so personal. 

I'd appreciate a coil pack education and any info that might explain why these are going bad so often. 

Thank you



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2007 Sport 4door 4x4 4.0L SOHC V6 Ranger
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 Posted: Thu Apr 18th, 2019 03:18 am
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Eddie Money
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I seem to do this everytime. Lol. I post a question and while I'm waiting I do an extensive Google search and answer my own question. Forgive me I'll work on putting the horses in front of the cart. In the mean time I'll share what I've learned and you can correct me if im wrong or add anything I've left out 


Coil burnout in the case with coil packs can be caused by wrong plugs, wrong plug gap, and bad plug wires if yours has plug wires (some dont). Other cause are improper installation, water contamination, or excessive heat (possibly from a coolant leak).


Since I've been using this company truck it had a coil problem within the first 3 months. Replaced a couple coils.

then it sucked the crumbling intake gasket and started to run hot cause I couldnt keep enough water in it. Replaced the intake gasket but the mechanic didnt take care to not let the crumbled gasket get into the engine.

Flushed the engine and coolant and replaced some coils and plugs.  

Then fuel pump goes bad.

I assumed the mechanic replaced the coolant when he flushed everything from the intake gasket debacle. It never dropped below the fill line so I never bothered to see if it had antifreeze, I assumed that would be standard. My mistake, never again! Winter came and the block froze but luckily nothing was damaged but the heater quit getting hot.

A month later the water level starts going down within 2 days I'm adding 2 jugs of water every stop to keep coolant full. 5th day and you can clearly see the radiator is leaking bad. Probably from freezing this winter. Replaced the radiator.
  
2 weeks later it starts stumbling again. I feared it was the trans but it gets worse and familiar at the same time and I know it's the coils again. 

So I've concluded that all the over heating and coolant problems are the main cause of my coil problems, not my driving or anything else in related to the ignition. I'm hoping that fixing the intake gasket and radiator has solved my coolant problems and once the coils and plugs are replaced the only thing I'll have to worry about is the trans going or the whole engine grenading because at this point I'm a worst case scenario kinda guy. Lol. 

I hope this fixes it. Working with out my truck is a huge hassle and stripping everything off and putting it back on my truck every couple months while it gets fixed just sucks. I'm tired of worrying about not having what I need at the jobsite and no way to get it. I'm tired of worrying what the boss thinks and says. I just want my truck to work and the boss off my ass over his truck.

Last edited on Thu Apr 18th, 2019 03:26 am by Eddie Money



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 Posted: Thu Apr 18th, 2019 01:42 pm
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Is he buying cheap replacement coils?
The COP Triton engines (Coil on plug) I noticed the coils go bad on the cylinders first that hold water around them. On my old V10 the first coils to go where the ones that had poor gaskets and water was always around the coil. After that any cheap Ebay coils would barely last a year (10 new coils for under $200!!! too good to be true!! It was).
If I remember correctly, I used more grease on the seals (to keep the water out), use OEM coils and that seemed to solve it.
Lucky for me I traded that truck straight across (pinks!) for a 7.3 Excursion

Last edited on Thu Apr 18th, 2019 01:44 pm by 410customs



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 Posted: Fri Apr 19th, 2019 12:59 am
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Eddie Money
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I think we found the right mechanic. He told my boss he wouldnt change just the bad ones. He insisted on doing all 8 plugs and coils and changed the oil incase the unburned fuel washed out the dead cylinders. I like this guy.



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 Posted: Sat Apr 20th, 2019 07:39 pm
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JAMMAN

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Wow does sound like he is thorough and knows what he is doing.

You should have retorted: "What are you saying... my rings are bad?" LOL.

Boy that one will blow by a lot of members.

There are large end gaps in my humor.



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