Radiator's Unusual Loss of Coolant

[1D4LV]

Ganito kasi nangyari, i consult ko na din dito.

Two months ago, nagpalit ako ng radiator (Hyundai Getz 1.1, 07 Model), dahil sa overheat. Everything was checked from the water pump, to the thermostat to the radiator fans so the cause of overheat was determined to be na nasa radiator nga.

So far, nawala ang overheating concerns. Kaya lang napapasin ko na yung radiator losses significant amount of coolant wherein kailangan ko mag top up ng around 1/4 liter every week.

Tried looking for leaks, wala naman. Tried checking kung may nagmimix na coolant sa oil, wala naman. Wala ring smoke.
Walang kulo yung reservoir and hindi nababawasan yung coolant sa reservoir.
Nagpalit na din ako ng radiator cap two weeks ago.

Ano kaya reason neto? Is this normal? I don't think so dahil dun sa luma kong radiator and dun sa other cars ko, i seldom top up. Saan napupunta yung coolant?

Wala naman akong issue, kaya lang, dito sa oto kong ito, eto yung parati kong chinecheck ang radiator coolant level.

[ParticleX]

Check the connections of the rad hoses, probably nung binalik eh hindi na maganda yung pagka fit.
Or there's a pinhole leak in the new radiator, ask someone to rev and look at the radiator and its hoses

[vinj]

Di tumataas yung level sa reservoir?

Try checking your bypass hoses also to see if there are any leaks that might be hitting hot parts of the engine (thus evaporating the coolant). Magpa-compression test ka rin to remove any possibility of engine problems.

[JohnM]

On my old Lancer the culprit was the hose that bypasses the engine block to cabin heater route. This is usually located between the engine and the firewall so a pinhole there is kinda hard to see. Buti na lang puro kalawang radiator ko non kaya the rust trail led me to it

Check the hoses going to the TB also.

[1D4LV]

Di tumataas yung level sa reservoir?

Try checking your bypass hoses also to see if there are any leaks that might be hitting hot parts of the engine (thus evaporating the coolant). Magpa-compression test ka rin to remove any possibility of engine problems.

vinj, hindi tumataas yung level ng reservoir....
pwede nga sa hose.... have not checked this properly.
particlex's opinion could also be a possibility.
vinj, nagpa compression test na din ako.... wala namang problem.

[jodski]

nilagyan ba sir ng silicone gasket maker yung hose nung binalik nila or plain hose and clip lang?

[1D4LV]

nilagyan ba sir ng silicone gasket maker yung hose nung binalik nila or plain hose and clip lang?

ayun ang di ko alam.... iniwan ko kasi yung oto nung pinaayos ko.
binalikan ko na lang nung matapos.....

[jodski]

ayun ang di ko alam.... iniwan ko kasi yung oto nung pinaayos ko.
binalikan ko na lang nung matapos.....

Meron kasi gumagawa ng radiator hindi naglalagay nun at dinadaan na lang sa ipit ng clips... nasa around 150 pesos ata yung kuha ko dati na Hardex. Isa lang nun sobra sobra pa

[madduck]

On my old Lancer the culprit was the hose that bypasses the engine block to cabin heater route. This is usually located between the engine and the firewall so a pinhole there is kinda hard to see. Buti na lang puro kalawang radiator ko non kaya the rust trail led me to it

Check the hoses going to the TB also.

sorry 1D4LV, i don't want to hi jack your thread, may question lang kay sir JohnM

sir JohnM, I observed something similar sa sentra ko. may maliit na hole sa fire wall, engine side, na nagdidrip yung water kaya nauubos yung coolant reserve ko. Anong naging solution sa Lancer nyo sir? thanks.

[vinj]

vinj, hindi tumataas yung level ng reservoir....
pwede nga sa hose.... have not checked this properly.
particlex's opinion could also be a possibility.
vinj, nagpa compression test na din ako.... wala namang problem.

That's good. At least eliminated yung cracked cylinder head block (minsan kasi matagal mag manifest ang oil/water mixing). Thus, mukhang hoses yung titignan mo pards.

I'm facing the same issue with our Sentra right now. Sa Saturday ko pa matitignan.

[JohnM]

sorry 1D4LV, i don't want to hi jack your thread, may question lang kay sir JohnM

sir JohnM, I observed something similar sa sentra ko. may maliit na hole sa fire wall, engine side, na nagdidrip yung water kaya nauubos yung coolant reserve ko. Anong naging solution sa Lancer nyo sir? thanks.

Confirm mo kung coolant nga yon. Baka drain lang ng aircon.

If coolant nga trace mo ang hoses sa likod ng engine bandang firewall. Kung may butas palitan mo lang ang hose or lagyan mo ng rubber na takip ang inlet at outlet.

[ezrydre]

I am not really sure if this car has EGR system. If it does, try to bypass (if possible) the coolant hose going in and out of the EGR cooler. So that the coolant is not anymore passing thru the EGR cooler. This will eliminate the possibility of leak in the coolant line inside the EGR cooler.

[1D4LV]

That's good. At least eliminated yung cracked cylinder head block (minsan kasi matagal mag manifest ang oil/water mixing). Thus, mukhang hoses yung titignan mo pards.

I'm facing the same issue with our Sentra right now. Sa Saturday ko pa matitignan.

yup baka nga...... bro, favor naman, pa update din dito kung ano findings sa sentra mo.

[EVO-V]

Here's what.

Assuming you can't see any leaks, you may want to check any fitting used by sensor probes.

Granted that is secured, your cylinder head might be the next point to check, especially if you've overheated previously.

[1D4LV]

an added observation.
hard starting during cold mornings.

i am assuming its the thermostat. possible kaya ito? loss of coolant and hard starting?
sumabog kasi yung thermostat housing ko before. napalitan yung housing, pero hindi napalitan yung thermostat.

[crazy_boy]

i dont know if same ba sa diesel and sa gas. pero sa diesel ko dati, nagbabawas ng tubig, then nag hard starting, then came the thick white smoke. loose cylinder head bolt and culprit.

nagbubulwak ba yung tubig from the rad?

[1D4LV]

i dont know if same ba sa diesel and sa gas. pero sa diesel ko dati, nagbabawas ng tubig, then nag hard starting, then came the thick white smoke. loose cylinder head bolt and culprit.

nagbubulwak ba yung tubig from the rad?

hindi pre.

[wezz_zzew]

an added observation.
hard starting during cold mornings.

i am assuming its the thermostat. possible kaya ito? loss of coolant and hard starting?
sumabog kasi yung thermostat housing ko before. napalitan yung housing, pero hindi napalitan yung thermostat.

OT: According to my source, pwede ng hindi lagyan ng thermostat yung mga auto dito sa Pilipinas. Is it true?
Lagi kasi lumalabas yung warning light ko na "H" and sabi nung siraniko na kakilala ko, palitan ko na daw thermostat, sabi naman nung auto supply, pwede na kahit wala. Please advise.

[Ry_Tower]

an added observation.
hard starting during cold mornings.

i am assuming its the thermostat. possible kaya ito? loss of coolant and hard starting?
sumabog kasi yung thermostat housing ko before. napalitan yung housing, pero hindi napalitan yung thermostat.

Puwede na busted na thermostat kaya nagbabawas ka tubig kasi nag-eevaporate na lang siya from the reservoir galing sa radiator. Hindi na nagcicirculate ang coolant/water eh.

[vinj]

yup baka nga...... bro, favor naman, pa update din dito kung ano findings sa sentra mo.

Update: Couldnt find any leaks and it turns out the radiator cap was warped. Got an OEM Nissan cap from Yen.

Did you change water pumps already? On our Sentra, Corolla and Space Wagon before, we busted the water pump and it would drip water only when the engine was running.

OT: According to my source, pwede ng hindi lagyan ng thermostat yung mga auto dito sa Pilipinas. Is it true?
Lagi kasi lumalabas yung warning light ko na "H" and sabi nung siraniko na kakilala ko, palitan ko na daw thermostat, sabi naman nung auto supply, pwede na kahit wala. Please advise.

You need the thermostat. It regulates coolant flow and allows your engine to maintain the optimal operating temperature.