1999 F 150 4.2
#3
Senior Member
Welcome to the site. As torkum asked what PM has been done? If you haven't already, replace all hoses and belts. Its not cheap, but it is necessary to keep the engine integrity. Don't need any overtemp stuff. The heater hoses at the firewall are a real challenge. Might ask more questions on that. Special tool required and I've always been a sissy when pulling on a heater core. Have changed to many of them for different people. I'm at 176K on my 02. Been an absolute beauty of a truck. Swetted bullets having the cruise control recall done on it, nobody touches my truck unless I'm there and watching. Not saying I'm any better than the next guy, its just me and have seen to many flat raters butcher things.