My 1997 ford v10 spit out a spark plug yesterday and after getting on the internet to research this problem it appears this is a somewhat common problem.What is the best fix as many of comments indicate repeat problems after one plug fixed…often times another would spit out also. Ford says not a recallable problem. Is replacing the heads the only sure fix…Is there a sure fix???
When you say “spit out a spark plug” do you mean the plug unscrewed itself or it was sheared off at the threads? If the former, a spark plug crush washer and proper torque should help. You may want to try a different brand of plug. If the latter, the threads were ruined and you probably need new heads.
Had the plugs been replaced before? I’m just speculating here, but I’ll bet changing the plugs in a van with a V10 is a real pain in the butt. I wouldn’t be suprised if a couple of the plugs are just in such a tight spot that it’s darn near impossible to get torqued to spec. But that’s just my guess.