Gjason323

Hi everyone I have the 2.7 EcoBoost
Everything was fine before no misfire or nothing
I recently did the plugs oem motorcraft and now truck seems hesitant and I can feel small vibration
On seat....any thoughts?
The guy that did em didnt gap them nor did he
Disconnect the battery will that affect it?
I was so happy until this happened dont know if it's the plugs or maybe something else thx.

RLXXI

The installer probably cracked the ceramic insulator on one or more of them. Take it back.
.

RocketGhost

Could be that a coil wasn't installed property and you have one cylinder not firing.

Skwerl

Sum Ting Wong

JCR 56

Ho Li Fuc

chimmike

"didn't gap them".

What kind of idiot doesn't gap spark plugs? Even if they come pre-gapped, I verify every time.

Gjason323

It's weird no codes no nothing. I tow with it no issues. Its only at idle...am going to redo my plugs
Do u all reccomend disconnecting battery? And what plugs u recommend I am sticking to oem motorcraft.

tareed94

Take it back to the guy that did it. You paid him to do it, he should fix it without anything extra.

Siber Express

Out of the 16 plugs I bought for mine 6 were not gapped right and if he did not change the boots you might have one not making good contact
(springs stay compressed or pills disintegrate) and you still have the not all the way on.

ifallsron

Insulator crack or improper boot connect will throw a code ... guaranteed. No codes, go through the process and check everything.

If you have a quality scanner, do a live-time review of each cylinder.