civic 98: rising temperature on high speed

**rapido** · June 17th, 2009 11:19 PM

hi guys,

I'm a newbie here, also a newbie with cars. I got my 2nd hand honda civic 98 for more than a year now. Here is my problem:
- At high speed (120 - 140) tumaataas yung temperature ko, pero pag bibitawan ko gas para bumagal, bababa naman cya. Pinacheck ko cya sa talyer, sabi is try ko muna daw ipalinis yung radiator ko. So pinalinis ko cya (water pressure lang ginawa) and same parin problem. So What I did is pina overhaul ang radiator. Habang inaayos yung radiator, sabi ng gumagawa is dapat daw tanggaling ang thermostat kc ganun din ang problem nung client nya dati. Di naman "daw" need ang thermostat sa pinas, so as his advice pinatanggal ko na.

I tried to have a quick 120 - 140 speed run and mukhang di na nag occur yung problem (pero i still need to test it in a long drive run with high speed).

Heto po questions ko:
1. di po kaya thermostat lang yung problema nya, kaya nung tinanggal ang thermostat e mukhang ok na?
2. pano po ba malalaman na sira ang thermostat?
3. ok lang po ba na walang thermostat? Or I need to buy a new one at palagay ko?

Thanks po ng madami, hopefully matulungan nyo ko.

**rapido** · June 17th, 2009 11:27 PM

hi guys,

I'm a newbie here, also a newbie with cars. I got my 2nd hand honda civic 98 for more than a year now. Here is my problem:
- At high speed (120 - 140) tumaataas yung temperature ko, pero pag bibitawan ko gas para bumagal, bababa naman cya. Pinacheck ko cya sa talyer, sabi is try ko muna daw ipalinis yung radiator ko. So pinalinis ko cya (water pressure lang ginawa) and same parin problem. So What I did is pina overhaul ang radiator. Habang inaayos yung radiator, sabi ng gumagawa is dapat daw tanggaling ang thermostat kc ganun din ang problem nung client nya dati. Di naman "daw" need ang thermostat sa pinas, so as his advice pinatanggal ko na.

I tried to have a quick 120 - 140 speed run and mukhang di na nag occur yung problem (pero i still need to test it in a long drive run with high speed).

Heto po questions ko:
1. di po kaya thermostat lang yung problema nya, kaya nung tinanggal ang thermostat e mukhang ok na?
2. pano po ba malalaman na sira ang thermostat?
3. ok lang po ba na walang thermostat? Or I need to buy a new one at palagay ko?

Thanks po ng madami, hopefully matulungan nyo ko.

**Pol-pol** · June 18th, 2009 02:52 AM

Had the same problem with my Accord. Had the radiator hose replaced. At higher revs, the hose constricts and cuts off coolant circulation. This also affected the thermostat which had to be replaced too.

Sir, better have a the thermostat re-installed or better yet install a new one and replace all coolant hoses. Also, I am not sure if the same applies to a civic engine, but for the Accord there were other coolant hoses to be replaced other than the upper and lower radiator hoses.

Its a 10-year old car, parts wear out.

**jick.cejoco** · June 18th, 2009 04:14 AM

Originally Posted by rapido

hi guys,

I'm a newbie here, also a newbie with cars. I got my 2nd hand honda civic 98 for more than a year now. Here is my problem:
- At high speed (120 - 140) tumaataas yung temperature ko, pero pag bibitawan ko gas para bumagal, bababa naman cya. Pinacheck ko cya sa talyer, sabi is try ko muna daw ipalinis yung radiator ko. So pinalinis ko cya (water pressure lang ginawa) and same parin problem. So What I did is pina overhaul ang radiator. Habang inaayos yung radiator, sabi ng gumagawa is dapat daw tanggaling ang thermostat kc ganun din ang problem nung client nya dati. Di naman "daw" need ang thermostat sa pinas, so as his advice pinatanggal ko na.

I tried to have a quick 120 - 140 speed run and mukhang di na nag occur yung problem (pero i still need to test it in a long drive run with high speed).

Heto po questions ko:
1. di po kaya thermostat lang yung problema nya, kaya nung tinanggal ang thermostat e mukhang ok na?
2. pano po ba malalaman na sira ang thermostat?
3. ok lang po ba na walang thermostat? Or I need to buy a new one at palagay ko?

Thanks po ng madami, hopefully matulungan nyo ko.

rapido,
there had been posts about the disadvantages of removing the thermostat. please ask the moderator for a repost.
jick
instructor
guam community college

**v6dreamer** · June 18th, 2009 06:58 AM

Maaring yong thermostat ang isa sa mga problema. Ten years wow!, long overdue na at dapat ng palitan ang thermostat ng kotse mo. Ibalik mo yong thermostat ng kotse (bago ah! hindi yong luma) dahil importanting parts ng cooling system yan ng iyong kotse.

Sa sinabi nilang hindi kailangan ang thermsotat diyan sa Pinas.... thats a BALONEY.

**n5110** · June 18th, 2009 07:36 AM

Originally Posted by v6dreamer

Maaring yong thermostat ang isa sa mga problema. Ten years wow!, long overdue na at dapat ng palitan ang thermostat ng kotse mo. Ibalik mo yong thermostat ng kotse (bago ah! hindi yong luma) dahil importanting parts ng cooling system yan ng iyong kotse.

Sa sinabi nilang hindi kailangan ang thermsotat diyan sa Pinas.... thats a BALONEY.

+1.

napansin niyo ba kung meron natangal na dumi sa radiator niyo nung pina overhaul niyo?

bilhan niyo ng bagong thermostat yan para maging normal ang working temperature ng engine niyo at hinde naka bypass.

EK din po itong sasakyan ko, stock na stock at walang naka bypass.

**rapido** · June 18th, 2009 10:37 AM

thanks po mga sir.

Madami po natanggal na dumi sa radiator ko nung pina-overhaul ko sya.

So bale need ko gawin are to buy a new thermostat (sa casa para sure na orig noh?), ipalagay ko sya para di naka by pass, then replace all radiator hose ( civic 98 vtec vti po ang car, dalawa po yun noh? isa sa taas at isa sa baba?). Balitaan ko po kayo. Thanks po ulit.

**OldSchoolHack** · June 20th, 2009 07:58 AM

I think tama yung move mo. And while you are at it, the water pump (or radiator pump) to circulate the water pa check mo din. Worst case scenario need mo na palitan.

Kung tumataas ang thermostat mo it could still be working pero it's a good move to have it checked.

Good luck.

**raine** · June 20th, 2009 05:15 PM

dagdag din ako,
kabibili ko lang ng thermostat sa piyeza las pinas perepereho lang naman daw ang gamit na thermostat ng civic, orig 1,200pesos replacement 800pesos, kaya alang ang raplacement walang oring kaya kung sira na ang nasa luma wala kang mabibiling oring lang, kaya ako binili ko orig na, ang replacement na rad fan 1,300pesos

**rapido** · June 23rd, 2009 11:55 AM

Mga bossing, heto po updates, Sa Casa (Honda pamapanga) ko na dinala at heto findings:
1. Put thermostat
2. Radiator overhaul (may dumi parin daw kasi)
3. Ok pa daw radiator cap and hose
4. Computer test
5. Road test

With the above, nagbayad ako almost P2000. Same parin po ang problema with the new thermostat and radiator overhauled, tumaataas parin ang temp on high speed. Nagpupush parin ng tubig sa reservoir the eventually, nababawasan cya (below level pag malamig na makina). Kaya pinatanggal ko na muna ulit ang thermostat to prevent the rising temperature on high speed.

Need daw cya i top overhaul (gasket). P25000 daw po ang minimum estimate nila (sakit sa bulsa nito, iipon muna). May mga iaadvice po ba kayu? Thanks po.