Coolant reducing in radiator

[devilcena2]

Ye kis thra check hosakta hai, pressure kis thra day kar?
Apparently koe visible leak nahi mujhy milli
@krieger

[msabbasi]

W.salaam
Checked it but apparently it was just coolant kind of smell. @msabbasi

This is good. As you do not have water mixing in the oil (no chocolate milk shake on the dip stick or in the oil filler cap) also you do not have oil in the cooling system (oil on the radiator cap or in the expansion bottle) and you do not have exhaust gasses in the cooling circuit, we can rule out head gasket failure. So that leaves a physical leak in the cooling system.

Possible areas could be the water pump seal. This might only leak when the engine is running and may be evaporating as the engine area is hot so you cant actually see the leak. Or from one of the hoses but you should be able to see it. Another illusive leak could be from the heater matrix under the dash. But if that was so, you should have been able to smell the coolant inside the car. That is all I can think off the top of my head at this time.

[devilcena2]

Thanks for helping. I just want to rule out any leakage then last resort would be head gaskit. Heater core was leaking maybe a year ago so disconnected coolant going inside heater core, is there any sort of coolant pressure testing in Pakistan, if so that would rule out any micro leakage. If there is any availability in twin cities do you know any? @msabbasi

[msabbasi]

is there any sort of coolant pressure testing in Pakistan, if so that would rule out any micro leakage. If there is any availability in twin cities do you know any? @msabbasi

Yes there is a tool to pressurize the cooling system. It looks like this:

But this is Pakistan and I am not sure who has one. However one can make a tool like it. We need a bicycle pump, a hose or tube like people use to connect gas cylinder to cooker, a radiator cap that is correct for your car and a short steel tube that is good for the gas hose. Get a radiator walla to solder the steel tube to the radiator cap taking care not to burn the rubber gasket in the cap. and you will have pressurizing tool for around a thousand rupees. You can watch a few utube videos to understand. In this original tool there is a Shrader valve to hold the pressure within the system after you have stopped pumping. In this home made tool, a valve will have to be added in the plastic gas tube that can be closed after pumping up the system to hold the air in the colling system while you search for the leak. We can add another Rs 500 to the cost of the tool for the valve.

something like this

This tool does not have a pressure gauge attached. I cant think of a cheap way to attach a pressure gauge. But if you pressurize the system and squeeze the radiator hose to feel the pressure you can feel the amount of pressure added like we check a bicycle tire.

[devilcena2]

Thanks for detailed help brother, will look into it @msabbasi

[fusion.alive11]

If the coolant is not sucked back in the radiator then this sure hints there is a leakage somewhere. Also there is a thing called external headgasket leak where you would have no problem or symptoms of actual gasket leak and doesn't affect performance either, but it leaks coolant/water externally where head and block meet. I did face external leaks of headgasket and simply used silicone externally to fix it ( it was small leak) also engine tikki/freeze plugs can corrode and leak too..