Is there a tool for reaching the pass-side firewall plug? I changed 7 of the 8 plugs on my wifes 5.4 when it hit 110k, just couldnt get to that last one? Whats the trick? I had everything off possible and socket adapters, but no luck.

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Roger Fastring
1997 F250LD S/C 4x4
5.4, Auto 113k+miles

 

Wobble extensions and universal joints.

 

It's really shoved back up in there isnt it?
You could try removing the radio and going in that way.

I wouldn't be surprised if Ford had a special tool fot it.
Probably called the 'oh boy don't we know to make money' tool.

 

Have you tried dynamite?

 

Try going up through the oil pan it would probably be easier. or just take the wire off that one and have the first 7 cylinder.