The blend door motors have been changed. The thermostats have been changed. The coolant sytem has been flushed. Shows no signs of headgasket problems. there are no overheating issues. When you step on the gas it immediately starts blowing hot air but when you let off the gas it goes cold.
It is possible your heater core is blocked need to remove the two heater core lines one should be coming from the front of the block the outher from the cooler .take a water hose and run water into one of the hoses in tell water runs out the outher hose if not passing through ezely with out restriction it is ok if it don't and just a small amount comes out and it trys to come back out the way it is going in it is plug up. what happens when your at idle and it is blocked not allowing coolent to pass through in tell your rpm goes up to were it starts to forcing the coolent through giving you a little bit of heat as soon as it goes back to idle pressure goes down can you lose heat again
Has anybody checked for the proper coolant level when hot? MAKE sure u CHECK THE WATER PUMP OPERATION!
SOURCE: AC is blowing out HOT air... How to get to the Blend Door to check it?
No, you just need to fill freon gas.
SOURCE: radiator overheating
hey im having a problem with my 96 cirrus overheating. i think its the fans. they dont seem to turn on unless i let the hood drop, then they suddenly kick on. the fuse is good.. any ideas??
SOURCE: coolant loss with no signs of overheating
check the bottom of you coolant bottle to see if you have a crack and check all of you hoses as well try this website to see if the have your car listed its www.alldatadiy.com hope this help you Michigan Man.
SOURCE: 1996 vw vr6 engine coolant leak in front of engine
A blown head gasket doesn't necessarily mean there is water in the oil. Check for bubbles coming into the coolant tank. Take car for a short drive to build up coolant pressure and you should be able to see where it is leaking from a bit easier. It is possibly coming from a heater pipe or core plug.
SOURCE: engine overheating
The coolant flush on radiator doesn't do any good. Since you have changed all the key components and still gotten overheated, then the root cause of the problem is the radiator. It got clogged up in small tubes blocking coolant flow. No matter how good the water pump is working but the radiator got clogged up, coolant is not circulating therefore the heat from the engine can't be dissipated to the radiator. Replace your radiator, don't even think about rebuild it. It has been used for 11 years. Make sure to have the correct coolant/water ratio to keep radiator life for years. Good luck.
Testimonial: "Thanks, it was the radiator afterall. They claim hose was attached too tight; caused it to chip. I think I was taken for a ride by AAMCO & Valvoline."
Air
Temperature Control Blend Door Failure No Heat or no AC (dependes on
where door sticks)
In
all modern cars there is a tiny DC electric motor driven gear drive
that moves a plastic door that blends heated and cooled air from the
AC and the heater core, this is called (interestedly enough) the air
temperature control blend door actuator. The motor that moves this
door fails because the door starts sticking from warping, most common
complaint is no heat but it can be no AC as well. To replace these
parts (blend door and blend door actuator) you must remove the entire
dash from the car. Always have this problem confirmed by a dealer or
qualified repair shop as it is a very expensive repair.
Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.
Air
Temperature Control Blend Door Failure No Heat or no AC (dependes on
where door sticks)
In
all modern cars there is a tiny DC electric motor driven gear drive
that moves a plastic door that blends heated and cooled air from the
AC and the heater core, this is called (interestedly enough) the air
temperature control blend door actuator. The motor that moves this
door fails because the door starts sticking from warping, most common
complaint is no heat but it can be no AC as well. To replace these
parts (blend door and blend door actuator) you must remove the entire
dash from the car. Always have this problem confirmed by a dealer or
qualified repair shop as it is a very expensive repair.
Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.
Air
Temperature Control Blend Door Failure No Heat or no AC (dependes on
where door sticks)
In
all modern cars there is a tiny DC electric motor driven gear drive
that moves a plastic door that blends heated and cooled air from the
AC and the heater core, this is called (interestedly enough) the air
temperature control blend door actuator. The motor that moves this
door fails because the door starts sticking from warping, most common
complaint is no heat but it can be no AC as well. To replace these
parts (blend door and blend door actuator) you must remove the entire
dash from the car. Always have this problem confirmed by a dealer or
qualified repair shop as it is a very expensive repair.
Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.
Air
Temperature Control Blend Door Failure No Heat
In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.
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