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I am losing antifreeze from the right rear of the trailblazer above the muffler, and the rear heat doesn't work properly it only blows cold air and smells like antifreeze
sound like you have a bad heater core is it leaking out of the a/c drain tube?sound like you have a bad heater core is it leaking out of the a/c drain tube?
There is a rear heater core along with hoses behind the right rear inside panel.. I suggest you look there.There is a rear heater core along with hoses behind the right rear inside panel.. I suggest you look there.
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Check control switches, power and grounds, and the 'blend door' operation. If you have a 'no heat' condition throughout the vehicle you should look to make sure the heater core is not plugged, and that the thermostat is operating properly, and that the coolant/antifreeze level is within spec.
Fill the tank with the CORRECT antifreeze up to the fill line (There should be two lines - a "Hot" and a "Cold"). Find out where you are losing your antifreeze - look for a puddle under the vehicle after you fill it. If no puddle, run until the vehicle is warm, shut it down, and look for a puddle.
If your cooling system was empty, you may have to bleed the system after filling the tank. A shop manual for the vehicle should tell you whether you have to bleed the system.
Just got an answer from Chevy Dealer. When you replaced the battery it loses its memory as to where the door actuators were (the flaps that control the heat and A/C).
The fix: Turn everything off and let the car sit overnight. The computer should reset itself during its learnings process. In the morning turn on the ignition and let the car run for a few minutes before turning on the climate control.
If this doesn't work, plan on 1-1.5hours of labor for a technician to reset the actuators at the dealership.
check you antifreeze level, if its low you may not get any heat. other then that it can be vapor locked (not great if it hasn't been emptied and refilled recently , could be a bad head gasket) or it can be the control in the dash...if so you may hear what sounds like an air leak(losing vacuum) or the air doors may be stuck towards the cold.......I hope your antifreeze is low, the other things are a pain to fix usually
sounds to be a faulty thermostat did your car over heat my vehicle does the same thing its the thermostat when its cold out your vehicle loses all its engine temperature and blows cold air make sure you use 50/50 antifreeze
Check the antifreeze usually if the heater is blowing only cold air you are low on antifreeze and the heater coil is not being heated by the flow of antifreeze
Sounds like you may be able to fix it by flushing your antifreeze and back flushing the heater core. Some car owners cheep out and put stop leak into the antifreeze, others dont change there antifreeze at all. Both are mistakes.
sound like you have a bad heater core is it leaking out of the a/c drain tube?
There is a rear heater core along with hoses behind the right rear inside panel.. I suggest you look there.
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