Heater not working

Hi there,

If you haven't fixed the problem already, here are a few suggestions:
-Make sure your coolant is at proper level in your radiator (ENGINE COLD) and inside your overflow tank.
-If coolant is at proper level, let's look at your thermostat: Is your engine long to warm up? If so this would be a sign of a thermostat that is stuck open. Another tip: when you start your car in the morning, or whenever the engine is cold, grab the upper radiator hose with your hand; if you can feel coolant flowing thru it, you know for sure your thermostat is bad. Replace it (a new one runs around $5 + coolant).
-Ok, let's say your thermostat is okay. Let's look at your heater core: Turn your car on and let it reach normal operating temperature. Then turn the heat on high. Now feel both heater hoses in the engine compartment (they are small rubber hoses hooked to the firewall behind the engine). Both hoses should feel very hot. If one hose is cold or lukewarm, your heater core is probably clogged. You need to flush your cooling system. If flushing doesn't fix your problem, a new heater core will be necessary.

This guide will help fix it

https://www.2carpros.com/articles/car-heater-not-working

Hope this helps

Check the thermostat, heater core and air blend door-

Try replacing the thermostat.

Before the car wash was working after the car wash u went to store came out from store and it didn’t work +
its very cold where you live
is it cold enough for water to freeze up and prevent the motor from turning since you had a leak around that area

See if your coolant level is low. Make sure your thermostat is operating properly. You should see a temp around 180-210 degrees.

Check your antifreeze level first, low coolant will cause this as the heater core is the first to lose the volume.

Check your level of coolant and add some if necessary.
Make sure there's no leak.
Replace thermostat.
If you never serviced your cooling system, I strongly suggest you do it now. GM dexcool coolant lasts up to 5 years/150,000 miles, so it would be overdue.

Replace the thermostat that don't cut it-get it block and pressure tested-sounds like its overheating due to a stuck closed thermostat that probably blew the headgasket or cracked head or block