Overheating Help Po! CRV Gen1 Nagawa na yata lahat

[Carnoob]

Mga kapatid, patulong naman sa problema ko. I have a honda 2001 Gen1 CRV (Gas, Automatic) na nag overheat lately. Ito ang storya:
Day 1
- Nag ooverheat, dinala sa subok na mekaniko ko. Medyo competent naman from past issues at inde namemera
- Bumubulwak yun tubig sa radiator, may pressure sa ilalim mukhang may tama yun head gasket
- Top overhaul, palit ng orig honda headgasket at na machine shop yun head.
- Pinapalitan ko na rin water pump
- Ni replace yun coolant. Binaklas radiator medyo nilinis onte
- Ikinabit, nilagyan fluid, pinatakbo umaandar. Maya maya nag overheat pa rin pag uwi umabot 3/4 g gauge

Day2
- Inde gumagana thermo switch, pag naka on lang aircon tsaka iikot yun fan
- Nag ooverheat pa rin, pansin ko pag naka on yun aircon tsaka sya umiinit
- nagdesisyon ako na ipa overheal yun Radiator. Wala pang 2 years yun nung pinalitan pero pinalinis ko na rin. May nakitang mga bara at nalinis naman
- Pina daluyan ng tubig yun mga hose na nakakabit sa block para malinisan
- Ikinabit, nilagyan ng tubig at pinaandar. Tinest drive inde naman uminit.
- Pag uwi, ayun tumataas ulit lagpas normal temp, nasa may gitna na

At this point inde na rin alam ng mekaniko kasi lahat na yata nagawa namin:
- Pinalitan head gasket at machine shop cylinder head para siguradong lapat. Pag nabuksan yun radiator inde na bumubula/bumubulwak yun tubig
- I dont see oil sa radiator water or water sa oil
- Bago water pump. So far wala ako makitang tagas. Wala din makitang leak sa mga hose/tubes
- Na overhaul na yun radiator, pero top lang inde binuksan yung baba kasi daw sa ATF yun kaya inde ko alam kung may issue yun o wala
- Bago yung thermo-switch
- Gumagana both fans (automatic on at pag switch AC). Normal naman daw yun lakas nila sabi ng mechanic at electrician
- Sabi ng mekaniko wala na daw thermostat ito tinaggal na daw dati
- Sabi din ayus pa naman yun radiator cap - paano ko ba malalaman kung kelangan na palitan? Wala naman tunog o steam o tubig na lumalabas dun

Ano po kaya problema nito at umiinit pa rin. Pansin ko pag naka on yung A/C dun tumataas yun temp, pero di ko lam kung dahil ba mahina yun cooling system ng kotse at di na nya kaya palamigin kasama yun condenser o may nangyayari sa aircon na nag papainit ng sasakyan. 3 weeks ago wala naman problema ngayun lang. Malamig naman AC pag naka on :|

Meron po bang mapagkakatiwalaang shop na pwede mapuntahan para matignan ito? Next steps ko sana eh ipa LavRaMon para malinis yun engine block o siguro palitan radiator but i dont want to proceed hanggat inde pa na clarify kung ano talag ang issue. POssible kayang may hangin sa loob at inde maalis?

Salamat po in advance. Si misis na kasi gumagamit nitong sasakyan and gusto ko sana maayos na ito para sa kanya. Thanks ulit at Godbless.

[jick.cejoco]

Mga kapatid, patulong naman sa problema ko. I have a honda 2001 Gen1 CRV (Gas, Automatic) na nag overheat lately. Ito ang storya:
Day 1
- Nag ooverheat, dinala sa subok na mekaniko ko. Medyo competent naman from past issues at inde namemera
- Bumubulwak yun tubig sa radiator, may pressure sa ilalim mukhang may tama yun head gasket
- Top overhaul, palit ng orig honda headgasket at na machine shop yun head.
- Pinapalitan ko na rin water pump
- Ni replace yun coolant. Binaklas radiator medyo nilinis onte
- Ikinabit, nilagyan fluid, pinatakbo umaandar. Maya maya nag overheat pa rin pag uwi umabot 3/4 g gauge

Day2
- Inde gumagana thermo switch, pag naka on lang aircon tsaka iikot yun fan
- Nag ooverheat pa rin, pansin ko pag naka on yun aircon tsaka sya umiinit
- nagdesisyon ako na ipa overheal yun Radiator. Wala pang 2 years yun nung pinalitan pero pinalinis ko na rin. May nakitang mga bara at nalinis naman
- Pina daluyan ng tubig yun mga hose na nakakabit sa block para malinisan
- Ikinabit, nilagyan ng tubig at pinaandar. Tinest drive inde naman uminit.
- Pag uwi, ayun tumataas ulit lagpas normal temp, nasa may gitna na

At this point inde na rin alam ng mekaniko kasi lahat na yata nagawa namin:
- Pinalitan head gasket at machine shop cylinder head para siguradong lapat. Pag nabuksan yun radiator inde na bumubula/bumubulwak yun tubig
- I dont see oil sa radiator water or water sa oil
- Bago water pump. So far wala ako makitang tagas. Wala din makitang leak sa mga hose/tubes
- Na overhaul na yun radiator, pero top lang inde binuksan yung baba kasi daw sa ATF yun kaya inde ko alam kung may issue yun o wala
- Bago yung thermo-switch
- Gumagana both fans (automatic on at pag switch AC). Normal naman daw yun lakas nila sabi ng mechanic at electrician
- Sabi ng mekaniko wala na daw thermostat ito tinaggal na daw dati
- Sabi din ayus pa naman yun radiator cap - paano ko ba malalaman kung kelangan na palitan? Wala naman tunog o steam o tubig na lumalabas dun

Ano po kaya problema nito at umiinit pa rin. Pansin ko pag naka on yung A/C dun tumataas yun temp, pero di ko lam kung dahil ba mahina yun cooling system ng kotse at di na nya kaya palamigin kasama yun condenser o may nangyayari sa aircon na nag papainit ng sasakyan. 3 weeks ago wala naman problema ngayun lang. Malamig naman AC pag naka on :|

Meron po bang mapagkakatiwalaang shop na pwede mapuntahan para matignan ito? Next steps ko sana eh ipa LavRaMon para malinis yun engine block o siguro palitan radiator but i dont want to proceed hanggat inde pa na clarify kung ano talag ang issue. POssible kayang may hangin sa loob at inde maalis?

Salamat po in advance. Si misis na kasi gumagamit nitong sasakyan and gusto ko sana maayos na ito para sa kanya. Thanks ulit at Godbless.

Sabi ng mekaniko wala na daw thermostat ito tinaggal na daw dati




install a new thermostat and bleed the system

[glenn manikis]

check your aux fan... baka po namamatay... or mahina na... and also kung tama ang buga ng hangin... dapat ang wind direction going towards the engine....

[OTEP]

Sakin dati, sira ac compressor mismo. Ang lakas pala ng drag kaya pag naka on ac nag ooverheat, palit ako surplus compressor, ok na.

[Carnoob]

Salamat po for your inputs!
Sir Jick: Sige po sir will try to get an OEM thermostat. Curious nga ako dun kasi paano tumakbo ng ganun katagal yun ng walang thermostat? May overheadting issues ako dati pero dahil sa busted rad/hose. About the bleed, are you referring to Air bleeding? Actually inde ko alam kung paano. Tried researching about it and didnt go far. Nabasa ko na teh engine bleeds itself and burps air to the reserve tank. Baka may pwede pa ako gawin to purge the air?

Sir Glen: Sir okay naman po yun fan. Namamamtay sya dahil automatic sa thermo switch, pero okay naman yun buga. Yes direction is towards the engine

Sir Otep: So nag overheat yun oto nyo dati sir due to a busted compressor? Parang ganun yata case ko sir ipatingin ko din muna. Bakit po ganun kung sira compressor head pero malakas naman AC and malamig pa rin?

[Chinoi]

Check mo kung mabilis ang ikot ng Radiator Fan. Off muna engine at try mo ikutin yun blade ng Radiator Fan. Dapat iikot ito ng few rotation bago tumigil. Compare mo sa Air Condenser Fan ang gaan ng ikot ng blade.
Baka ngayun mo lang experience ng overheat problem ay dahil sa summer na ngayun. Magdagdag ka kaya ng 3rd fan at tapat mo sa harap ng radiator. On mo lang ito kung nasa traffic ka.

Ganyan ginawa ko sa Lancer Itlog ko. For peace of mind sa traffic.

[OTEP]

Yes, malamig naman aircon ko nun. Pero nung tinanggal yung belt and try pihitin compressor, parang stuck up siya. Hirap na yung makina na paandarin compressor pero napapaandar pa din naman kahit papano. Yun lang nag ooverheat na dahil sa lakas ng drag resistance.

[jick.cejoco]

Salamat po for your inputs!
Sir Jick: Sige po sir will try to get an OEM thermostat. Curious nga ako dun kasi paano tumakbo ng ganun katagal yun ng walang thermostat? May overheadting issues ako dati pero dahil sa busted rad/hose. About the bleed, are you referring to Air bleeding? Actually inde ko alam kung paano. Tried researching about it and didnt go far. Nabasa ko na teh engine bleeds itself and burps air to the reserve tank. Baka may pwede pa ako gawin to purge the air?

Sir Glen: Sir okay naman po yun fan. Namamamtay sya dahil automatic sa thermo switch, pero okay naman yun buga. Yes direction is towards the engine

Sir Otep: So nag overheat yun oto nyo dati sir due to a busted compressor? Parang ganun yata case ko sir ipatingin ko din muna. Bakit po ganun kung sira compressor head pero malakas naman AC and malamig pa rin?

am not sure which engine you have, but you can bleed the air out through the highest point where coolant passes and bleed the heater core by leaving the valve open (max heat) while the engine is running to completely fill the heater. let the engine cool down and check/top off the radiator and the reservoir

[EVO-V]

- Inde gumagana thermo switch, pag naka on lang aircon tsaka iikot yun fan

Its likely an electrical issue.

Overhauling your radiator is just asking for trouble. You will do more damage and put operational reliability at risk by having someone open your radiator, poke into its tubes, then reseal the tanks with contaminated solder (or epoxy) without the necessary post-treatment to clean the weld joints let alone the proper equipment to test for leaks.

If your radiator is clogged then you have several things you need to take care of. First is you have heavy sedimentation in your coolant/water mixture. Depending on your location, the water may have a high level of dissolved solids. So you need better water sources.

Also a possibility, the water in your coolant has already evaporated leaving coolant residue that will clump together in your cooling system. You will need to flush your engine thoroughly and filter sediments.

Using bottled is extreme, but its a good placebo for most people who do not understand the chemistry or possess the commonsense to know that once that water touches the metal and the residues in your loop, it becomes no better than clean tap water.

Second, keep your thermostat on.

Third, I would check your fans' flow rates and your radiator/condenser fins if they are obstructed with debris.

Most waterpumps are mechanical. Only when they start leaking or stop spinning (bearings), or the vanes of the impeller heavily corroded will they need replacement.

Once you have cleared issues on both the water and air side of the radiator, your trouble shooting can focus elsewhere.

It is important to do things properly the first time with a competent service provider.

[Carnoob]

Thanks everyone for your help!

Had the radiator de-scaled(or discaled hehe). Maluwag yun fan connector after ikabit ulit yun rad. So when we tested the AC fan was running fine but came loose somehow kaya umiinit. Okay na po sya sa ngayun.

Thanks again!