HELP. Just did my plugs

[scotthagg]

Just did my plugs and it went very well. The 4th plug came out a little rough and the threads were not as clean as the previous 3. (see pic) Put everything back one by one and fired it up seemed fine, but got int the car to take a quick test drive and it had the flashing engine. restarted it and the flashing enf=gine was gone, but definitely a miss. I did not feel like spark plug 4 coil was sitting properly. Reseated and still not doing great, Please let me know your thoughts.

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[scotthagg]

Truck was driving fine prior,

 

[scotthagg]

Update. Boot 4 was not seated properly, some boot lube and all fine. Thank god. Now I can be honest and tell you those plugs lasted 160K!!!

 

[RedlandRanger]

I had the same issue when I did my plugs. Glad you got it sorted....

 

[IdahoRanger]

Update. Boot 4 was not seated properly, some boot lube and all fine. Thank god. Now I can be honest and tell you those plugs lasted 160K!!!

Wow, Scott. how has everything else like the tranny and HVAC done over that 160k?

 

[Bsthroop]

Mine did the same thing, something in the way by number 4, maybe a fuel line, that keeps you from dropping it straight down.

 

[Racket]

Was that rusty/crusty plug #4?

The great thing about this forum is those with miles and trials posting their experiences good and bad.

Spark plugs getting stuck in the head and breaking off is my new paranoia and I'm a little confused what can be done with replacement plugs to head this off. I've read anti-seize causes problems with plugs staying in place so I wonder what to do instead. Coming up on 50K miles and contemplating replacing the plugs as preventative.

 

[Grumpaw]

Was that rusty/crusty plug #4?

The great thing about this forum is those with miles and trials posting their experiences good and bad.

Spark plugs getting stuck in the head and breaking off is my new paranoia and I'm a little confused what can be done with replacement plugs to head this off. I've read anti-seize causes problems with plugs staying in place so I wonder what to do instead. Coming up on 50K miles and contemplating replacing the plugs as preventative.

Problems your referring to are usually from using too much anti seize. You only need to use a very small amount on a plug....a dab the size of a pea will do it. Place it at the start of the threads and start the plug.....the anti seize will spread as you thread the plug....just that tiny amount is enough.

 

[JesseS]

Looks like you may have had a little water issue on the #4 with the rusty threads.

 

[diesel924]

I just did mine yesterday at 60K miles. I'm having a hard time seeing how you could bolt down the coil with the plug boot askew. Did you torque the plugs to 106 in/lbs I hope?

 

[Joranger2023]

Update. Boot 4 was not seated properly, some boot lube and all fine. Thank god. Now I can be honest and tell you those plugs lasted 160K!!!

Damn!

 

[airline tech]

Update. Boot 4 was not seated properly, some boot lube and all fine. Thank god. Now I can be honest and tell you those plugs lasted 160K!!!

Yes, with this COP design, it's a pay attention (by feel only) install, the most important is that small little (snap -click) of the terminal end snapping onto the plug, plus with the corroded threads it is most likely that the inside of the boot also had some residual rust deposits, Ford actually recommends replacing the boot as well with visible moisture evidence.

 

[Tim H.]

Just did my plugs and it went very well. The 4th plug came out a little rough and the threads were not as clean as the previous 3. (see pic) Put everything back one by one and fired it up seemed fine, but got int the car to take a quick test drive and it had the flashing engine. restarted it and the flashing enf=gine was gone, but definitely a miss. I did not feel like spark plug 4 coil was sitting properly. Reseated and still not doing great, Please let me know your thoughts.

What spark plugs did you go with?

 

[Trash Panda]

I literally just posted a write-up on this procedure. Great minds think alike.

I avoided anti-seize on the new SP-594 plugs and only applied a pea size drop of Dielectric grease in the coil boot.

Cylinder 4 you have to insert at 6:00 position while pushing down and rotate it counterclockwise.

Good to hear you got it straightened out.

***It could be nothing but maybe something to look into on Cylinder 4 with the threads. All four of mine appeared to not have super dirty threads @ 60,000 miles.

 

[scotthagg]

Wow, Scott. how has everything else like the tranny and HVAC done over that 160k?

Don't want to jinx it. Replace heated seat and did trans flush. Other than that things have been excellent. Lots of Highway obviously. I put Eibach suspension on it as well and changed the differential fluid. Lookingfor recommendations. Should I do the timing chain/belt(imagine its a chain)

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