If the heat and defrost in your 2008 Chevy Impala aren't working, it could be due to several issues. Common causes include low coolant levels, a malfunctioning thermostat, or a faulty heater core. Additionally, problems with the HVAC controls or blower motor can prevent warm air from circulating in the cabin. It's best to have a mechanic diagnose the issue to ensure proper repairs.
how do you fix the heat in a 2002 Chevy impala
You need to check the vacuum lines for the a/c system for leaks, breaks and loose ones first.......
everything, it's from 2001!
should still be under warranty, could be a bad thermostat.
my 1998 gmc jimmy has no floor heat but i have defrost and ven heat
I had a Chevy van of this vintage and I found a vacum hose leak in the controls that would make the heater/defrost door default too defrost open. lisining carefully under dash or under hood may pinpoint leak. I had a Chevy van of this vintage and I found a vacum hose leak in the controls that would make the heater/defrost door default too defrost open. lisining carefully under dash or under hood may pinpoint leak.
Check under hood for a broken or disconnected vacuum supply line.
Check heat shield on catalytic converterTry going to a higher octane fuel
Low on coolant, Stuck open thermostat, Plugged heater core, Faulty blend door actuator,
no heat to front window went defrost is on
It can, but for safety call or check with the banned that you have
Check the 96 Blazer for any vacuum leaks in the system. A vacuum leak can cause the air flow to only come out of the heat vent.