I own a 1995 Mustang
GT. I started having an issue with my engine coolant temperature gauge pegging out past the 'H' and the gas needle going from F to E. It was clearly not running hot, I had the A/C on but shut it off once I saw the temp needle pegged out. My radiator apparantly had a small leak that was undetected until driving to work in heavy stop and go traffic in the heat of the day. Once I saw the steam from the driviers side of the engine I immediately pulled over and that is when I discovered the radiator was blown. I have since replace the radiator with an aluminum radiator, thermostat, Blue high temp hoses, fresh coolant and Hy-Per Lube Super Coolant. I have removed all of the air from the system and checked the engine block temp and radiator temp, none of which indicate a high temp as to where the temp needle reads. In fact after changing everything out. The needle pegged out when I crancked the car up a second time after pressuring out any air through the screw type vent on the thermostat housing. I also changed out the ECT on the lower intake. Any help as to how to solve this issue would be greatly appreciated.