Heating problem in carina 2

Could be that the thermostat has packed up...

Check all your coolant levels are correct and then take her for a good run out....keep your eyes on the temperature gauge,,if your temp gauge hardly moves then your thermostat is at fault....replace it.

If temp gauge works fine, you may be airlocked in your heater matrix... Try setting heater to full heat with fan on full power,, whilst car is ticking over, remove radiator / expansion bottle cap carefully and start squeezing your coolant pipes. This should force any air out through your rad/bottle top..

Please be aware that as your temperature rises in the engine. Your coolant will expand and start to flow out of the rad/expansion bottle..at this stage quickly replace the cap....check your heater...leave engine to cool....unscrew rad/bottle cap, check coolant levels, top up if necessary and squeeze pipes again..start car with heater/fan on full and repeat above.....

Hope this helps..

I agree with your logic. Attached vid addresses bleeding. Sounds like at low rpms, not enough flow to transfer the heat. So bubble or maybe a partially obstructed core. There are a couple of vids on clearing a core... GOod luck, let us know if you figure it out.

Is both heater hoses hot? Could need radiator and heater core flush. Water pump propellers could be detoriated. I have seen this on vehicles before. Just some ideas to look at.

put a radiator flush in your expansion bottle .run it for about 20 miles. then drain and refill with 50/50 mix of anti freeze that will clean both core of your radiator and the heater core of dirt and rust. then bleed the air out. by turning the heater on full .run the engine with the expansion bottle cap off till you start to feel hot water at the hoses .then refit the cap.

put a radiator flush in your expansion bottle run it for about 20 miles to clean out both the core of the radiator and your heater core .then drain it. refill with 50/50 mix of anti freeze. leave off the cap the now as you need to bleed it first. to do so .put your heating on full with the engine ticking over .the water starting to heat up put on your cap.

put a radiator flush in the expansion bottle.run it for about 20 miles.that will clear any rust or dirt..then drain and refill with a 50/50 mix of anti freeze.bleed the air out .do that by heating on full .with the expansion bottle cap off .replace when you start to feel water getting hot.

You could have an airlock still in the system. Run the vehicle at idle and squeeze the top and bottom radiator hoses with the expansion bottle cap removed. Add fluid gradually to it keeping it under the full marker. The bubbling is super hot air caused by air trapped either in the engine block, or top of radiator. A little tip while doing this, have the heaters on in the car and on high heat with the fans running at high speed. If you notice the engine getting warm and the heating in the car stays cold, the airlock is going to need a bit more work. Eventually if you have replaced the head gasket correctly the air lock with come out. Hope this helped...

Seems like the thermostat is OK if you are now not experiencing overheating.

Does it show signs of over heating at all? When cool, take off rad cap & check level in rad & top it up. If down a lot, start engine, turn on heat & let run until you hear rad fan come on & check temperature gauge to see if normal operating temperature. Let it come on a couple of times, and top up rad an inch or so from top, then put rad cap back on. Top up bottle to proper level & try it. If it spits back into return bottle, try replacing rad cap.

Do this when cool. Take radiator cap off, start the engine, turn on heat (not defrost) and now top up coolant to about an inch or 2 from top of radiator, as level drops down, and let vehicle run until the radiator fan comes on, then off, about 3 times, and add coolant as needed while it's running. After that, put radiator cap back on tight & make sure return bottle is filled to proper level. Now try that & see how heat is, temperature gauge etc, and keep an eye on return bottle level for a while. Let me know how it is.