help with radiator problem

[Kratos4age]

mga paps i just need help with my radiator problem.almost 1 week na nito pinapasakit ulo ko

last week kasi i noticed na nauubos yung water sa reservoir ko,so upon checking,i saw na may leak yung bottom part ng radiator which means may butas,so i had it repaired,ok na wala na leak,kaso 2 days ago,while driving from makati to paranaque with ac on,wala naman overheat pero nung naisipan ko ihataw nung lumuwag ang daan with the ac off, i noticed that umangat yung temp like 2 lines above the middle/normal part,so what i did was i turned back on the ac,and bumalik sa normal,when i got home, i turned off the ac and revved the engine up to 4k rpm twice,bigla na naman umangat yung temp pero once i opened the ac,bumalik sa normal,so i figured it maybe the rad fan, i checked the switched,ok naman,and then yesterday,tinesting ko,with ac off,traffic,from paranaque to mckinley hills taguig paikot ikot,wala over heat , then bumiyahe pa ko from sucat to trinoma and back wala pag angat ng temp, tand rad fan works ok nag aautomatic siya,then today i opened the rad cap, i noticed nabawasan yung tubig sa rad,so nag add ako ng mga isat kalahating baso,pero yung reserve na lalagyan,hindi nabawasan,i cant see any leaks from the rad,from the hoses to the bottom part,as in wala,i replaced the rad cap na pala and the hose clamps and visually checked everything pero wala talaga ako makita leak,chaka bakit hindi nababawasan yung reservoir ko di ba dapat pag naubos ang tubig sa rad sa reserve siya hihigop para puno parati yung sa rad,?bakit nababawasan pa din yung radiator ko?

sorry kung mahaba ,all inputs will be appreciated,thanks

[1D4LV]

check your auxilliary fan bro.
they might not be working properly.

[Kratos4age]

sir i already checked the aux fan and the rad fan,both are working properly,both fans switch on when ac is turned on and with the ac switched off,the rad fan is turning on pag mainit then switched back off pag lumamig na,so im ruling it out,nagtataka lang ako bakit yung coolant sa rad mismo nababawasan pero hindi sa reserve,di ba dapat yung reserve ang mababawasan muna?bakit parang hindi hinihigop yung coolant sa reserve,wala naman ako makita leaks talaga,san tumatagas yung nawawalang water sa rad?sakit sa ulo hehe

[jvnj]

Chief,

Check your radiator cap (might be defective already) as well as the hose connecting the radiator and the reservoir (check for loose connections on fittings).

Other things you might wan't to consider checking:
1. Water Pump, check for signs of leak
2. Fittings, hose, plugs, look for signs of leak
3. Thermostat - Might be defective already causing flow restriction, thus abnormal temp and water evap.

[Kratos4age]

*jvnj

sir the radiator cap is already new,it has a 0.9 rating sa cap,i dont know the rating nung dati na cap kasi dilapidated na,i also doublechecked the hoses and fittings,wala tlga leak and bago din yung mga clamps,i doubt its the water pump kasi wala naman ako nakikita leak dun and walang grinding sound,thermostat na lang di ko na check,pero bakit di naman ako nag ooverheat,like ngayon went from paranaque to mandaluyong,no prob and i can hear the fan na nag aautomatic,will check and find out tomorrow if nabawasan na naman yung coolant sa rad,

[jvnj]

Chief,

I forgot to ask you. What model, make and year of your car? When was the last time you overhauled your radiator? Do you use tap water for your radiator? How about a coolant? Other than a faulty thermostat, a clogged radiator restricts water flow thus creates inefficiency.

[raine]

kung hindi na humihigop pabalik sa radiator and tubig merong butas yan. check sa mga hose kung merong maputi na sign na natuyong tubig, check mo rin ang water pump baka sira na ang seal at may tagas na ng tubig, or radiator mismo. kung mag check ka masmaganda kung tumatakbo ang makina at mainit na ito. check mo rin kung saan ka nakapark baka doon sa floor makikita mo na kung saan ang basa.

[EVO-V]

mga paps i just need help with my radiator problem.almost 1 week na nito pinapasakit ulo ko

last week kasi i noticed na nauubos yung water sa reservoir ko,so upon checking,i saw na may leak yung bottom part ng radiator which means may butas,so i had it repaired,ok na wala na leak,kaso 2 days ago,while driving from makati to paranaque with ac on,wala naman overheat pero nung naisipan ko ihataw nung lumuwag ang daan with the ac off, i noticed that umangat yung temp like 2 lines above the middle/normal part,so what i did was i turned back on the ac,and bumalik sa normal,when i got home, i turned off the ac and revved the engine up to 4k rpm twice,bigla na naman umangat yung temp pero once i opened the ac,bumalik sa normal,so i figured it maybe the rad fan, i checked the switched,ok naman,and then yesterday,tinesting ko,with ac off,traffic,from paranaque to mckinley hills taguig paikot ikot,wala over heat , then bumiyahe pa ko from sucat to trinoma and back wala pag angat ng temp, tand rad fan works ok nag aautomatic siya,then today i opened the rad cap, i noticed nabawasan yung tubig sa rad,so nag add ako ng mga isat kalahating baso,pero yung reserve na lalagyan,hindi nabawasan,i cant see any leaks from the rad,from the hoses to the bottom part,as in wala,i replaced the rad cap na pala and the hose clamps and visually checked everything pero wala talaga ako makita leak,chaka bakit hindi nababawasan yung reservoir ko di ba dapat pag naubos ang tubig sa rad sa reserve siya hihigop para puno parati yung sa rad,?bakit nababawasan pa din yung radiator ko?

sorry kung mahaba ,all inputs will be appreciated,thanks

Pare use paragraphs naman, nakakadokleng. :P

Normally the reservoir is attached to the overflow outlet of the radiator to act as a surge tank in instances wherein overpressure situations occur. Given your cooling system is a closed loop and is pressurize by your radiator cap by 1 atmosphere, when the temperature goes down the coolant is drawn back into the radiator.

Now, since you're losing coolant, with no visible leaks or drips, and the reservoir levels aren't going down, it may well be a situation that your system isn't sealed and adequately pressurized, ie. your radiator cap, is no longer sealing properly. Check this and see, there's a chance your coolant is leaking out of the cap on the road during high temp/pressure situations. There should be residue from the coolant present on surfaces.

Secondly, check your oil, there's a good chance that cavitation has occurred well enough that your cooling channels have been corroded and is leaking into the engine's internals. This normally explains any mysterious coolant disappearances. I hope though that this isn't the case for you, as it normally means you need a new cylinder head.

Now overheating. When cruising, ram air going through your grill will provide you roughly the equivalent air volume of your grill at a slightly higher velocity depending on your grill configuration. Personally, I'd prefer more volume after 32kph.

But I digress.

Your A/C is normally dependent on an auxiliary fan, in situations where you're not moving The radiator fan alone is normally designed just to work for the radiator. The thing is, if the auxiliary fan isn't on, it will end up blocking airflow to you radiator. That is why you experienced a temperature drop when you activated your A/C.

Radiators work on fluid heat transfers. Liquid to solid to air. If any of these are blocked, then heat transfer is impeded.

But given your initial experience, I'm assuming your car is at least 8 years old, and you do drive quite a bit it seems. I suspect that your radiator is already corroded internally and that your fins are blocked. Given the number of times you've lost coolant, I have a feeling its only been water used for topping up.

Now if budget allows, I recommend just getting a new one. That way you get an excuse to flush your engine and refill it with a proper coolant mixture.

I mean think of the math.

You use your car for work. If you stall because your radiator blows out on you, you have to pay for towing. You can lose a day of productivity. Get bummed on a date and miss out on ***y time.

Worse, a top overhaul at the very least if this keeps going. All these -way more expensive than a new rad.

[EVO-V]

*jvnj

sir the radiator cap is already new,it has a 0.9 rating sa cap,i dont know the rating nung dati na cap kasi dilapidated na,i also doublechecked the hoses and fittings,wala tlga leak and bago din yung mga clamps,i doubt its the water pump kasi wala naman ako nakikita leak dun and walang grinding sound,thermostat na lang di ko na check,pero bakit di naman ako nag ooverheat,like ngayon went from paranaque to mandaluyong,no prob and i can hear the fan na nag aautomatic,will check and find out tomorrow if nabawasan na naman yung coolant sa rad,

The filler neck may have been compromised that a seal between its opening and that of the cap is no longer viable.

[Kratos4age]

Pare use paragraphs naman, nakakadokleng. :P

Normally the reservoir is attached to the overflow outlet of the radiator to act as a surge tank in instances wherein overpressure situations occur. Given your cooling system is a closed loop and is pressurize by your radiator cap by 1 atmosphere, when the temperature goes down the coolant is drawn back into the radiator.

Now, since you're losing coolant, with no visible leaks or drips, and the reservoir levels aren't going down, it may well be a situation that your system isn't sealed and adequately pressurized, ie. your radiator cap, is no longer sealing properly. Check this and see, there's a chance your coolant is leaking out of the cap on the road during high temp/pressure situations. There should be residue from the coolant present on surfaces.

Secondly, check your oil, there's a good chance that cavitation has occurred well enough that your cooling channels have been corroded and is leaking into the engine's internals. This normally explains any mysterious coolant disappearances. I hope though that this isn't the case for you, as it normally means you need a new cylinder head.

Now overheating. When cruising, ram air going through your grill will provide you roughly the equivalent air volume of your grill at a slightly higher velocity depending on your grill configuration. Personally, I'd prefer more volume after 32kph.

But I digress.

Your A/C is normally dependent on an auxiliary fan, in situations where you're not moving The radiator fan alone is normally designed just to work for the radiator. The thing is, if the auxiliary fan isn't on, it will end up blocking airflow to you radiator. That is why you experienced a temperature drop when you activated your A/C.

Radiators work on fluid heat transfers. Liquid to solid to air. If any of these are blocked, then heat transfer is impeded.

But given your initial experience, I'm assuming your car is at least 8 years old, and you do drive quite a bit it seems. I suspect that your radiator is already corroded internally and that your fins are blocked. Given the number of times you've lost coolant, I have a feeling its only been water used for topping up.

Now if budget allows, I recommend just getting a new one. That way you get an excuse to flush your engine and refill it with a proper coolant mixture.

I mean think of the math.

You use your car for work. If you stall because your radiator blows out on you, you have to pay for towing. You can lose a day of productivity. Get bummed on a date and miss out on ***y time.

Worse, a top overhaul at the very least if this keeps going. All these -way more expensive than a new rad.

^^haha ang haba!pero thanks anyway

car is a 1994 corolla gli with a 4efte engine swap,
i use coolant,radiator is religiously overhauled every year,new clamps,no leaks on hoses,water pump is fine,and definitely no coolant mixed with oil,i think the problem has been solved,the rad cap wasnt locked in tight,hahaha,now i will just need to observe it for a few days, thanks sa mga inputs

[EVO-V]

^^haha ang haba!pero thanks anyway

car is a 1994 corolla gli with a 4efte engine swap,
i use coolant,radiator is religiously overhauled every year,new clamps,no leaks on hoses,water pump is fine,and definitely no coolant mixed with oil,i think the problem has been solved,the rad cap wasnt locked in tight,hahaha,now i will just need to observe it for a few days, thanks sa mga inputs

:P

You don't need to overhaul your radiator every year. By overhaul do you mean they open it up and poke through the tubes? This is not a good practice.

As long as its the right mixture/formula for your coolant, you'd be fine.

re: loose radiator cap -DOH! :D

[dest]

mga paps i just need help with my radiator problem.almost 1 week na nito pinapasakit ulo ko

last week kasi i noticed na nauubos yung water sa reservoir ko,so upon checking,i saw na may leak yung bottom part ng radiator which means may butas,so i had it repaired,ok na wala na leak,kaso 2 days ago,while driving from makati to paranaque with ac on,wala naman overheat pero nung naisipan ko ihataw nung lumuwag ang daan with the ac off, i noticed that umangat yung temp like 2 lines above the middle/normal part,so what i did was i turned back on the ac,and bumalik sa normal,when i got home, i turned off the ac and revved the engine up to 4k rpm twice,bigla na naman umangat yung temp pero once i opened the ac,bumalik sa normal,so i figured it maybe the rad fan, i checked the switched,ok naman,and then yesterday,tinesting ko,with ac off,traffic,from paranaque to mckinley hills taguig paikot ikot,wala over heat , then bumiyahe pa ko from sucat to trinoma and back wala pag angat ng temp, tand rad fan works ok nag aautomatic siya,then today i opened the rad cap, i noticed nabawasan yung tubig sa rad,so nag add ako ng mga isat kalahating baso,pero yung reserve na lalagyan,hindi nabawasan,i cant see any leaks from the rad,from the hoses to the bottom part,as in wala,i replaced the rad cap na pala and the hose clamps and visually checked everything pero wala talaga ako makita leak,chaka bakit hindi nababawasan yung reservoir ko di ba dapat pag naubos ang tubig sa rad sa reserve siya hihigop para puno parati yung sa rad,?bakit nababawasan pa din yung radiator ko?

sorry kung mahaba ,all inputs will be appreciated,thanks

Sir, Kailangan ng ipaoverahaul yong radiator niyo. Kasi may mga barado na yong mga tubo ng radiator. Sinabi niyo noong hinataw niyo nag overheat at nagbabawas ang tubig, Hindi masyado nag cicisrculate ang tubig, Kaya yong coolant water naiipon sa top cover at hindi makababa agad sa bottom ng radiator. kaya lumalabas ang tubig sa filler cap, Nagkakapressure sa taas. Kung plastic top yong radiator niyo. yon po yong cause na magcracked yong top cover.

Kung taga Paranaque kayo Sir, dalhin niyo na lang sa shop namin.




FERMIN RADIATOR SHOP (infront Metrobank Sucat)
80-82 Dr. A. Santos Ave., San Dionisio, Paranaque City
Tel: (02) 829-3771 / 775-2293 / 400-5005 / Globe- 0915-5413610 / Smart 0928-2144214 / 0918-4314519

Please like us on Facebook *Fermin Auto Care Services * Fermin Radiator Shop (Jofremar Enterprises) | Facebook

[EVO-V]

Sir, Kailangan ng ipaoverahaul yong radiator niyo. Kasi may mga barado na yong mga tubo ng radiator. Sinabi niyo noong hinataw niyo nag overheat at nagbabawas ang tubig, Hindi masyado nag cicisrculate ang tubig, Kaya yong coolant water naiipon sa top cover at hindi makababa agad sa bottom ng radiator. kaya lumalabas ang tubig sa filler cap, Nagkakapressure sa taas. Kung plastic top yong radiator niyo. yon po yong cause na magcracked yong top cover.

Kung taga Paranaque kayo Sir, dalhin niyo na lang sa shop namin.




FERMIN RADIATOR SHOP (infront Metrobank Sucat)
80-82 Dr. A. Santos Ave., San Dionisio, Paranaque City
Tel: (02) 829-3771 / 775-2293 / 400-5005 / Globe- 0915-5413610 / Smart 0928-2144214 / 0918-4314519

Please like us on Facebook *Fermin Auto Care Services * Fermin Radiator Shop (Jofremar Enterprises) | Facebook

Kratos4age already solved his problem, it was the radiator cap.

Radiator "overhauling" is like playing any game in a casino -you'd eventually lose. Replacing plastic tanks on aluminum cores with brass tanks is asking for trouble, its called galvanic corrosion. It is also a very environmentally unsound practice given the amount of lead solder you're introducing into a practically unrecyclable scenario.

We've tackled this in previous threads.

[Kratos4age]

mga paps buhayin ko lang ulit yung thread ko, kakainis di ko mahanap ang culprit,so ang nangyari siguro mga 2 weeks ago nag drain ako ng coolant and pinalitan ng bago then all is well,
hindi nag bawas at hindi umangat ang temp,chineck ko siya cguro twice 2 days after ma drain and refill yung coolant,
then kanina umaga nag check ako,pag bukas ko radiator cap,nabawasan ang coolant! pero ang reservoir puno pa din, hindi hinihigop yung tubig sa reserba,
di ba dapat hihigupin nya yun pag nauubos na yung sa rad mismo, so nag dagdag ako coolant mix mga 2 baso suguro then biyahe paranaque to megamall and back,traffic na grabehan then pag check ko ng tubig sa rad kanina,puno naman!hindi nabawasan!
nakakaloko eh, bakit ganon? ok naman siya the whole day no overheat no unusual ek ek,bakit nabawasan siya at bakit hindi hinihigop yung tubig sa reserve?? im suspecting it could be the rad cap pero bago na siya eh,
im thinking yung nabili ko hindi lumalapat ng maayos dun sa bibig ng rad, yung kasing radiator ko pag lock position siya sa cap parang hindi pa naka lock so medyo may technique sa pagsara hindi siya naka lock position,naka position lang siya na feeling ko eh masikip at lapat na, labo!hehe sana may makasagot,ang sakit sa ulo eh

note: wala leak talaga as in,

[Kratos4age]

The filler neck may have been compromised that a seal between its opening and that of the cap is no longer viable.

this is exactly what im thinking,baka nga may hindi na masyado nag seseal pero bakit kanina hindi naman nagbawas ng coolant when i opened the rad cap and checked it??!!! haha nakakabuang!

[EVO-V]

this is exactly what im thinking,baka nga may hindi na masyado nag seseal pero bakit kanina hindi naman nagbawas ng coolant when i opened the rad cap and checked it??!!! haha nakakabuang!

It worries me how often you open that cap or inspect your cooling system. You may well end up wearing the seals out prematurely or deforming your filler orifice.

OT Itong "overhaul it" culture is really getting annoying. Nauuna yung profit motive lagi imbes nang tumulong. Pffffffft.

[dr. d]

It worries me how often you open that cap or inspect your cooling system. You may well end up wearing the seals out prematurely or deforming your filler orifice.

OT Itong "overhaul it" culture is really getting annoying. Nauuna yung profit motive lagi imbes nang tumulong. Pffffffft.

but what do you suggest? how do we keep tabs on our coolant level? and in case of a bad leak, it takes only one trip to dry up your radiator.

[EVO-V]

but what do you suggest? how do we keep tabs on our coolant level? and in case of a bad leak, it takes only one trip to dry up your radiator.

You can check the coolant levels without opening the radiator cap, right?

If there is an inherent leak present then you really should have that inspected. Otherwise you're going to end up with a mental disorder worrying about it.

These sub-systems are built to be reliable. If they lose their reliability, then there is something wrong. If there's something wrong -fix it the right way.

[dr. d]

You can check the coolant levels without opening the radiator cap, right?
.

how?
i have had experience wherein the radiator coolant had already gone down so low that the metal top of the core was already visible, and yet the overflow cannister still contained significant amount of coolant...
in my example here, it seems i had a leak.. in the short rubber hose hiding under my intake manifold. it was completely invisible.. the only clue was when i opened my radiator cap, my coolant was gone, even as my overflow still had liquid in it..
and i would never have suspected a leak, had i not opened the cap..

[EVO-V]

how?
i have had experience wherein the radiator coolant had already gone down so low that the metal top of the core was already visible, and yet the overflow cannister still contained significant amount of coolant...
in my example here, it seems i had a leak.. in the short rubber hose hiding under my intake manifold. it was completely invisible.. the only clue was when i opened my radiator cap, my coolant was gone, even as my overflow still had liquid in it..
and i would never have suspected a leak, had i not opened the cap..

I don't understand. In normal situations you really don't have to check that regularly. Those caps and filler necks aren't cycle tested for repeated removal.and sealing. Those are made from stamped sheet metal. You can check on it from time to time but not on a daily basis.

That is one of the reasons why jeepneys don't bother with replacing their caps.

Unless you're the type that confirms if a door is locked by unlocking it at least three times every time, a leak is the least of your problems.