The thermostat you installed was either bad or is installed upside down. Possibly a clogged heater core. Possibly the system needs bleeding.AnswerCould be your control cable is broken. Not familiar with your particular model but look for a cable on or near the firewall near the heater core. You may be able to move it by hand and get the haet you need. AnswerRemove DEX coolant the manufacturer recommends. DEX clogs the heater core. Put regular coolant in it then drive, drive, drive. It will break loose. Mine took nearly 4 months to get the sludge out of the radiator even after flush. But it worked. Manufacturer will never comment about that DEX crap.
I have a 98 and I had the same problem..it was my heater core, they arent hard to replace and I dont think they are that expensive
Instantly. If someone is telling you otherwise, they're blowing smoke.
a new heater core
i think that it is determined by the position of the sun. cheers-rhys stannard 10DL
Purg The Air Out of the Cooling system
you have an airlock
Thermostat messed up, Oil needs to be changed, no antifreeze in the radiator, radiator fan is not working properly
I suspect that either your thermostat is plugged with debris from the radiator change or that the thermostat was replaced backwards. The spring side should be towards the block.
If it is leaking coolant. And you changed the thermostat. I would then move to this section. Flush the radiator and the heater core. This can be done at a certified shop with a reliable mechanic.
the ac stoped working and so did the heat . I changed the thermostat added freant
Mine used to used up at idle. I changed the coolant but it kept doing it. I am pretty sure it was the thermostat. The best internet advice is that it is probably your thermostat. You can roll the dice and change it out youself or go to a good mechanic and he'll tell you for sure what is wrong.
by your blowing
If you didn't get it warm after the work and then refill the tank - the system was probably closed when you filled it. It's possible once the thermostat opened (or just as the coolant leaked past), the fill you gave was used as it filled the system past that point.
Simple answer...yes. Not much changed between the years until 81.
have you changed the battery in the thermostat?
your heater core might be plugged(probable), or thermostat may not be opening all the way
You might have bad actuator that opens and closes airways.
Check the blend door system. The door controls the air flow under the dash, and can cause cold air to come out.
You may have the thermostat in backwards. The spring side of the thermostat faces into the engine.
Standard antifreeze should be changed every two years. Long life antifreeze needs changing every five years.
I would check the hoses leading into your radiator, and also the overflow for antifreeze. If that is not the problem, it could be your heater core. Your heater core might be leaking, you might have a hose leaking
No. Just goto a shop have the coolant (antifreeze) changed every 2 years. Have it "REVERSE FLUSHED" and have the thermostat replaced at the same time (should only cost 80 bucks or so) A shop will know which stuff to put in. You will not be able to flush the system like a shop can. Its worth the money.
that's the complete oposite to mine! mine just keeps blowing hot air out! changed the thermostat and still nothing changed, in the end i just unhooked so it constantly blows cool air gonna be a problem in the summer!
It depend's on what type and year vehicle you are driving. some of the gm model's have a lifetime antifreeze that is orange in color.
If it heated up on you, chances are that you warped the cylinder head and now have a blown gasket. You don't give very much information, here.
Sounds like the heater core may be plugged or the heat control valve may not be fully opening.