Spit spark plug - threaded inserts

[99Expy]

One guy put this on you tube.

YouTube - Ford Triton Engine BLOWN SPARK PLUGS.

It is a serious problem. I was told thread engagement was only 1.5-2.5 at most.
My 99 is paid for, won't last forever but not sure if I would go Expedition route again.
I pull a 30' travel trailer, so far helicoil has held up after 18 months. Fingers crossed.

[vann]

Originally Posted by carterep

All-
I am planning on buying a used Expedition (1997-2001). Is there a quick and easy method of determining if the engine has spit out a spark plug in the past and now has an insert? I realize that I can pull off the coil/plug wire and rachet out each plug individually, etc. but this isn't always practical in the seller's driveway with him and his family standing there watching me. I am hoping there is some sort of relatively easy visual inspection or clue. Any tips are greatly appreciated.

Ethan (Denver)
2007 Freestyle
1989 Festiva

Two ways to find out about blown plugs. Ask the owner for the maintenance records and if he has fixed any plug problems in the past. Take the car for a drive by way of an Auto parts that will read the cars computer. That will only tell you what codes are present now but thats good data. If its not missing on the Tach I wouldn't over worry it. vann

[carterep]

Thanks Vann-
I think my plan will be to fork out some money and have a Ford dealership (or other Ford expert) go over the rig top to bottom prior to buying it. Getting the computer read out is a good start.

[TBIRD430]

I would also have them pull the warranty history on that SUV, it might show a repeat problem...?

[99Expy]

Bump for FYI