JuiceeCamaro

Hey everyone, a few days ago my heater has been acting up. The heater just keeps blowing cool air. It’s a 15 minute drive so the car has plenty of time to heat up in my opinion to get the hot air going. It usually takes no longer than 5 minutes. Any ideas as to what could be wrong with my car? Any help would greatly be appreciated, because it's cold when I drive to work at 3 in the morning freezing to work and it would really sucks not having my heater at that time =(
Thanks in advance.

94'BLKBRD

iTrader: (76)

Heater core might be clogged. A flush might fix your problem.

cntrmnt02ss

iTrader: (2)

check coolant level... most common thing is low coolant level or air bubbles.

twarner22

Flush your system is the best way to deal with all of that

check this out - https://ls1tech.com/forums/general-m...8-no-heat.html

there also - http://shbox.com/1/4th_gen_tech2.html#heaterflush

check to see if your leaking coolant and also check under your glovebox inside the cab to make sure your heater core hasn't failed and is leaking onto the carpet (happened to me)

#flush system, change thermostat, check heater hoses for clogging, ensure your coolant is full

twarner22

if you have #13 in this diagram check it for clogging - http://shbox.com/1/heater_hoses.jpg