my heat was working fine but know for the last three days it has only been pushing out cool air why is that?

Question

it is a 2002 caravan 3.8 l havent done nothing yet where should i start

well i took a long trip in the car from wisconsin to kentucky it worked well all the way there and home but the day after it started acting up the heat wasnt one but mabey 2 hours top on the way there and home so could this be another reason what could have happened . where is the thermostat located i dont mind doing stuff myself infact i like to do it myself but i just dont know alot about cars

now i added antifreeze and drove it and now it is overheating why is that?

Answer 1

And the thermostat!The thermostat is stuck.

Answer 2

There a few reasons why the heater isnt working properly

#1 Low antifreeze coolant ------ check the level of the coolant and if it is low ensure you use the proper type coolant when you replace the lost coolant. Try to find out why the coolant was lost eg leaking radiator hose / loose connection at coolant lines or worse case ----- bad head gasket

#2 thermostat is stuck in the open position ----- this always seems to happen at the worse time of year ( winter ) Talk to your mechanic or a good friend to check this

#3 Heater core could be plugged and needs to be flushed, drained and checked

Good luck

Answer 3

Check to see if the engine warms up at all if it does and it still blows cold air check engine coolant. Second if the engine doesn't warm up even after running for awhile theirs a good chance thermostat is stuck open i recommend checking coolant first.

Answer 4

First check your coolant level in your radiator..... the if it is full and your heat is still cool... then change your thermostat.

Answer 5

if the engine has warmed up it should put out heat try starting 10 min before you leave

Answer 6

first make sure a/c button is off, then check your coolant level then check your heater core.