Bstandsforbama
Member
- Joined
- March 28, 2016
- Messages
- 13
- Reaction score
- 1
- City, State
- Port saint Lucie Florida
- Year, Model & Trim Level
- 1993 Ford Explorer Sport
Hello, new to the thread. And very sorry if this has been posted before. I also am having trouble finding info on the web. Doesnt help that im bad with technology haha. I have a bone stock 1993 explorer sport. New water pump. New thermostat. New radiator. Changed the spark plugs and although old and shot I didn't see anything concerning. When I bought the vehicle it would run a little hot at a red light but when I was moving it would cool down to a normal temp. First thing I checked was the thermostat. It didn't have one. That made me assume it was circulating to fast and wasnt cooling it down when stopped. (Been an issue with other vehicles not that familiar with 4.0s though) after flushing the system. New thermostat. Etc. I fired her up and she ran nice and cool. Drove her around the block and she started running a little over the middle. Went to take the cap off to check to see if their was any air pockets and let her burp and she just spewed steam and water out until the radiator was basically empty. It did this when it didn't have a thermostat in it too. She does have a little misfire. Better after changing the plugs and wires along with oil change etc. I bought it with a new radiator and water pump already installed. Although it didn't have a thermostat the housing hadn't been off in a LONG time. Im piecing it together they obviously had an overheating problem. I've had other ford's all 5.0s that have done the same thing but didn't have a bad head gasket.. Is there something to look for common with the 4.0s? I bought it as a project truck tor put a 302 in but would like to drive it for the time being. But to go over again it's bone stock. New water pump. Radiator. 180 thermostat. Nothing fishy with the old spark plugs that were in it. Doesn't run HOT just a little over middle after a while and has crazy pressure built up (did this when it had no thermostat too). No leaks. No clogs. Flushed it and burped her. Oil looked good. Coolant looked fine. (Prior to tune up. And it sat for a while) any and all advice is greatly appreciated. I considered a new radiator cap but dadgum I can't imagine that would cause it to build up that bad. I'm not ruling out headgasket just saying I didn't really see any signs of it being bad. But then again it's not always easily diagnosed. Thanks.