Honda civic 2005 reducing coolant

[Salman922]

your throttle body heating pipes are missing their clamps, buy a couple and tighten them up. As you have been running tap water to cool down your engine there is a very high chance of those little pipe nipples being corroded and leaking from the head.

Xulfiqar bhai, the previous owner was using tap water. Upon reading ur comments I had instantly shifted to zic coolant. Got the radiator serviced and poured zic coolant

Xulfiqar bhai doing the citric acid cleaning and getting the radiator service from radiator wala is the same thing or different ? which one is better ? i believe radiator service wala does not cleans the rust inside the engine while it can be cleaned with citric acid solution ?

[Xulfiqar]

citric acid is better than the radiator vendors who pour in sulphuric acid.

[hassaaniqbal92]

Help. I am now facing an alarming situation. My coolant reserve bottle becomes empty each week. Whenever I check the reserve bottle each sunday, it is empty, however the radiator is always full. Please help. I cannot locate any drop or burn of the coolant. And please direct me to a competant and expert person to solve this problem

[ahmed2396]

Help. I am now facing an alarming situation. My coolant reserve bottle becomes empty each week. Whenever I check the reserve bottle each sunday, it is empty, however the radiator is always full. Please help. I cannot locate any drop or burn of the coolant. And please direct me to a competant and expert person to solve this problem

Radiator has leaks, because when radiator level lowers it sucks from reservoir bottle.

[hassaaniqbal92]

Radiator has leaks, because when radiator level lowers it sucks from reservoir bottle.

Then I am not refilling the reserve bottle. Want to check if the coolant level reduces in the radiator or not. right now, the reserve bottle is empty but the radiator is full

[Salman922]

Then I am not refilling the reserve bottle. Want to check if the coolant level reduces in the radiator or not. right now, the reserve bottle is empty but the radiator is full

That's obvious bro, now if there is no coolant in reserve bottle gradually coolant level will decrease in radiator too.

[ajall]

Aoa. I am facing strange problem with my Honds reborn 2007 auto. Whenever I travel hilly area like murree etc, the coolant in radiator reduces, almost it reduce one third. However, when I drive my car on motorway, even in hot summer, at continuous drive from Islamabad to Lahore and back, not a single drop of coolant is reduced. Please some expert comment. I am using honda blue coolant.
Regards.

[NiGhTShAdE]

Looks like your radiater cap is malfunctioning.
As the water in cooling system expands, some of it goes to the expansion bottle normal refered as reserve bottle. As the coolant cools, vaccum is created in the system that helps in sucking back the coolant from expansion bottles due to higher atmospheric pressure. Seems like when in hilly areas as the atm pressure is low, it is not being able to push water back to radiater due to cap malfunction. There can't be any other explanation of this.
If this happens all the time then it is an indicication of leakage in the system.

[pwuser151186549178]

It is normal during summer season with use of A/C that some coolant becomes less after one month. But if coolant drop is high and reservoir bottle water make up is increased within few days then it can be due to minor leakage in the cooling system. I use pyro red coolant in my Honda civic CF4 2006 automatic and in summer once a month I make up coolant reservoir bottle with distill water/battery water. Only use distill water for radiator for clean radiator inside for maximum performance.

[Mun33b]

For future reference, PKDM civic 2001-2006 7th gen had brass (so called copper) radiators from factory. These radiators performed good with coolant but got corroded and damaged easily when tap water was used (retarded pakistani mentality). The leaks are hard to find without pressure test. To resolve it, perform citric acid flush, replace radiator hoses with new oems and replace radiator (I got a good genuine aluminum one out of half cut). Use coolant (i used havoline concentrated and 60 40 mix with distilled water-ac condensation water in my case). Be ready to find leaks (usually the flange leaks from hose outlets). Some pictures of parts i used for this fix.