right i have a mk4 escort 1.4 gl 4 door, the heaters will never blow hot they will only blow luke warm but not that well, but before people say matrix the temperature gauge in the car barely rises at all i travelled 25 miles to reddicth by me the other night doing 95mph on the motorway at 1 point (to try and warm engine up) but to no success? sticking thermostat perhaps?? any help?? cheers