How often do Spark Plug Wires need changed?

[majbjb]

My 2015 GT is fast approaching the 100K mileage mark so picked up some new spark plugs to change them out, per owners manual service schedule. Got to thinking about whether it's necessary or desirable to change out the spark plug wires at the same time. So what's the accepted schedule for changing these wires out?

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[K4fxd]

LOL


Just in case this is a serious post, these engines have coil on plug so no wires.

 

[majbjb]

LOL.....well damn. Guess things have changed since my first GT all those years ago.....and I have my answer, thanks !

 

[willywind]

Hi,

aren’t there wires between the coils and the ECU? Don’t they need to be replaced?

 

[robvas]

Hi,

aren’t there wires between the coils and the ECU? Don’t they need to be replaced?

Do you regularly replace the other wiring in your car?

 

[willywind]

Oh, I see. Those wires don’t carry the loads of old school spark plug wires.

 

[Strokerswild]

Oh, I see. Those wires don’t carry the loads of old school spark plug wires.

Nope, not even close.

 

[GTP]

Be very careful when removing the connectors from the plug coils. Pull the red lock back, and then be sure to study how the squeeze/release mechanism works. Then squeeze the release and pull off the connector. Otherwise you can break the connector, and it is part of a FULL wiring harness /connectors assembly.

 

[agmattocks]

you also need to change the blinker fluid while you're in there.

 

[K4fxd]

Be very careful when removing the connectors from the plug coils. Pull the red lock back, and then be sure to study how the squeeze/release mechanism works. Then squeeze the release and pull off the connector. Otherwise you can break the connector, and it is part of a FULL wiring harness /connectors assembly.

If you do break one a dab of RTV will keep it in place. I broke one n my F150 and it's still holding.

 

[dirtwarrior]

My 2015 GT is fast approaching the 100K mileage mark so picked up some new spark plugs to change them out, per owners manual service schedule. Got to thinking about whether it's necessary or desirable to change out the spark plug wires at the same time. So what's the accepted schedule for changing these wires out?

weekly

 

[sirben711]

You will know if you need to replace them... you will probably start to have random misfires, and at night, your engine bay will have a SHOCKINGLY nice blue glow to it.

 

[I Bleed Ford Blue]

you also need to change the blinker fluid while you're in there.

And replace the muffler bearing.

 

[dirtwarrior]

You will know if you need to replace them... you will probably start to have random misfires, and at night, your engine bay will have a SHOCKINGLY nice blue glow to it.

mine glows green

 

[majbjb]

you also need to change the blinker fluid while you're in there.

And while I"m at it I'll change out the winter air in the tires to fresh summer air !

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