Subject: Date: 12/23/2004 1999 F-250 Super Duty truck 5.4 triton V8. Bought vehicle in March - blew 3rd spark plug on passenger side. Had helia-coil put in by Ford dealer - didn't hold. Now the dealer wants $2,000.00 to fix properly. Seems I'm not the only one with this problem. Isn't Ford going to stand behind their product!