no heat , blowing cold air hoses going in and out the fire wall are hot on 1997 Mercury Mountaineer

heat will come out on either setting before it started blowing cold air

by in Chaska, MN on March 27, 2013
1 answer
ANSWER by , March 28, 2013
poss plugged heater core,if both heater hoses are hot. also ck vac to a/c heater controller