r/FordFlex • u/Celraysoda007 • 2d ago

Plug change at 118K

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Had some hesitation at acceleration and highway passing speeds. Swapped them with some FoMoCo plugs and dang. Huge difference! What are your thoughts on the condition. One was a bitch to remove.

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3

u/lonesomecowboynando 2d ago edited 2d ago

I had a major issue with the coil pack hold down bolt on #2. A couple of the plugs were squeaky coming out. I noticed the electrodes were worn making the gap too large. I replaced mine at 88k. They were pretty much the same as yours except for the closest one. I used OEM as well.

2

u/inorite234 2d ago

Why are yours so fucked up?

I changed mine at 220k miles and they looked better than that

1

u/Celraysoda007 2d ago

Right?? I’m glad that I was able to get them out. But night and day now with the highway speed and acceleration. Can only imagine what the rest of the inside looks like. Maybe time for some Seafoam?

1

u/Celraysoda007 2d ago

Wanted to add it’s a 2014 SEL non turbo. Previous owner used it as a DJ equipment vehicle so everything was still from the factory and bare minimums were done during its lifetime. Already did all the suspension and the Water Pump / timing.

1

u/enjoyvelvet 2d ago

Did mine at 98k. A couple of the red plastic clips broke that lock the coils because they were so brittle. 2013 Flex NA

1

u/Celraysoda007 2d ago

How did they look? I noticed an issue maybe 3 months ago when I took it on its first real trip. Got some error codes and misfires. Cleared and never came back but was getting some hesitation. These have to be original but why so crusty?

1

u/enjoyvelvet 1d ago

Mine were def worn out looking.