bamastang

I have a 2011 4x4 F150 Supercrew Lariet Ecoboost,
I have had no issues with this truck until around 54000 miles, On the way back from the beach after the truck had been running for about 4 hrs, I decide to pass a 18 wheeler and as I hammered down on the throttle the truck went into limp mode. I pulled off the road and turned the truck off and then back on and took it easy. So I took it to the dealership and they told me about the common problem with the Intercooler. They did the TSB 1308-1. They told me to drive normal for about two weeks while transmission did its adaptive learning thing, so I did. After two weeks I decided to test it out and I floored it. The engine sputtered and the check engine light came on and stayed on. So I took it back to the dealer and they said I had a bad coil pack. Said it would be $192 to replace the coil pack and plug for that cylinder and suggested a tune up even though the manual states to change the plugs at 100,000 miles. They said that since these were maintenance items that the warranty wouldn't cover it. I am not a mechanic but it just seems like these two things have got to be related. I decided to just get the one coil pack and plug fixed. And I called Ford Customer service and they paid around 100 dollars toward the repair. Does anyone know if these two issues are related?

packplantpath

These trucks are known to go through plugs. By 40,000 miles many are finding them bad. You may or may not have really had a bad coil.

wdbates

Let me guess Cylinder #3? At least that's what came up on my 2011 at 46000. I took it home and changed the plugs gap them at 35 and the truck returned to its normal self and ran smoother. By the way plugs were very easy to change and cost 53 bucks from ford dealer...

MyOwnStyle

Is it only the Ecoboost that goes through the plugs?

snobdds

You just need new spark plugs...never should have let them touch your intercooler.

zx12-iowa

Yes just us lucky economist owners. The price we pay for the extra power...

NASSTY

That's because they are a rip off. You can get 6 SP-534's at local parts stores for $28-$30.

bamastang

So does anyone know if the intercooler issue is related to the spark plugs and coil packs going out?
I saw on another forum where someone said that if the engine is taking in water from the intercooler once the water reaches the cylinder it will turn to steam and create a higher compression ratio causing the plug to pull more voltage, and causing the plugs and coil packs to go bad sooner than expected. Does this make since to anyone or not so much?

itguy08

Speaking of plugs...
The early Ecoboosts specified the standard platinum plugs and blew threw them like water. But the updated plugs are the newer, harder Iridium plugs. Have these also been blown threw as quick or do they hold up better?

Wannafbody

I doubt many people have high mileage on the newer plugs.