what to do when temp gauge wont go down when over heating on 1999 Chevrolet 1500 Pickup

my truck over heated and i turned the heater on high but the temp gauge did not go down

by in Potwin, KS on January 24, 2013
1 answer
ANSWER by , January 24, 2013
you have a poss low coolant issue or poss stuck thermostat. seek diag and est