insuranceguy

What is everyone’s opinion on putting something like a squirt of “liquid wrench” or a similar product on the plugs before replacement? Would this help or cure the problem of the broken plugs?

NGM

Help maybe cure no.

whitecrystal1

The best thing to use is AeroKroil. Turn the plugs 1/8 to 1/4 turn then fill the well up to the the top of the nut with it, let it sit for at least 15 mins then slowly turn them out. You should not see anymore than 33 lb-ft (45 N-m) of torque while removing them. If it starts getting harder to turn them out, turn them back in 1/2 turn and try turning them back out. If that doesn't help try a back and forth method with some more Aerokroil until you get the plugs out. Do this with the engine warm, not hot. TSB 6-5-9

There is a newer TSB that calls for a different penetrating oil but when I talked with Mike Troyer about it he said the Aerokroil is the best thing to use.

I decide to let the dealer do mine since they said if they break any I won't have to pay any extra for them to get them out.

HarmsWay

The Ford shop manual actually calls for soaking the plugs with anti-seize for 3 hours before attempting to remove them.

insuranceguy

Thanks for the input guys. Oh by the way White. I did the Sea foam last friday. Anything to wring another horse out of this pig!