Thank you for your advise;
I was thinking abot this valve but I couldn't find it. Is it inside the hose that goes to the heater core? Can I just buy a new one from an online store? Searching the internet did not help (for part, position or schematic). I would just replace part if I would now how to find it or how it looks.
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heater control valve...check hoses going into heater core..both must be hot if heater control valve is good ..check flapper valve that closes off ac from heat..this is a door inside the duct work....thermostat replaced and radiator cap too.let me know just fixed my own
It sounds like the heater control valve may be stuck. This valve
allows heated water from the engine to pass through the heater core
which in turn heats the inside of your car. If this valve is stuck,
only a small portion of heated water will pass through. If this is the
case, you should have the control valve replace.
You should be able to find it by following the heater hoses coming
from the radiator leading back to the firewall. These hoses will about
1/2 - 3/4 of an inch in diameter so you shouldn't get them confused with
the normal radiator hoses.
You can probably purchase a new valve at an auto parts store but I'm sure the dealer will have one.
If that's not the problem, it could be that the core itself is
clogged up. That's a little more expensive and more of a pain to
replace. if this is helpful please dont forget to give rateing thank you
If you can cut the heater hoses off from the heater core at the fire-wall, and then use a piece of pipe or a hose adapter and hose clamps to join or connect the two heater hoses together, then you can actually drive the vehicle until you require heat from the heater core inside the passenger compartment of the vehicle.
normaly bleeds itselfs.
fill up coolantreservoir to the max and start engine.
open heating max.
now hoses going inside must get real warm. and heat must go inside.
temp gauge must go to middle
if stays cold, check thermostatic valve.
The cardboard in front of the radiator is only good if the problem is an open thermostat. If the problem is a bad heater control valve, then blocking the radiator could over heat the engine. I suggest comparing how hot the radiator hose feels, as compared to the heater hose. Watch the heater valve when you operate the control knob, to see if it is opening and closing properly.
you might have a clogged oil line(s) to the turbo not allowing sufficient oil flow to the turbo remove the lines clean with carb cleaner clean the inside of the turbo be sure to scrape off burnt oil....change your oil and see if that works
there is a valvve that lets the coolant thru the heater core when heat is selcted then when it is off it goes thru thur the return instead of the heater core i bet your car is running a little off if it is the vavle works of a vacuum line and the vavle has a crack in it