Radiator fan sensor

[hakkinen]

good evening mga master & gurus. i got my ride from the second hand car market almost a year na rin. tanong ko lang sana yung tungkol sa radiator fan ko, i just learned recently na naka-rekta pala sya (naka-disconnect ang wiring ng sensor). meaning the moment i start the car, umiikot na agad yung radiator fan. alam ko kasi, meron syang fan sensor (sorry for the word, newbie po kasi) that detects certain temperature before that sensor activates the fan when it's only needed to cool the engine. so yung kaso ko po is, palaging umiikot ang radiator fan all throughout gamit ko yung kotse ko. ang worry ko po kasi kung ganito, baka mapadali ang pagsira ng rad fan ko due to over work. last weekend, napalitan na po yung suspetsa kong sirang sensor nito ang naka konekta na po ang wiring nito pero this time kahit mataas na yung temperature sa metro -ayaw pa rin umikot ng fan.

mga sirs, my question po is ano po kaya ang probable cause or any other problem kaya ayaw umikot ng rad fan ko kahit napalitan na po ang sensor nito. all throughout na gamit ko yung oto dati, wala nman pong naging problema, no overheating nor loss of water/coolant and it just works perfectly.
as of now, binalik ko muna sa pagka disconnect para magamit ko yung oto.

maraming salamat po sa tulong nyo.

[v6dreamer]

Have you change the engine coolant temp sensor? Or just the same sensor that came up w/ the car. (Most are mounted on the thermostat housing) (or on the side of the Eng. head )..that sends signal to the ( ECM ) Electronic Control Module that tells the cooling fan relay to start the fan... You might as well check if your car have thernostat.

[afrasay]

baka mataas yun temp rating ng thermoswitch kaya di siya mag turn on.

[hakkinen]

* v6dreamer: bale yung thermo switch lang po sir yung pinalitan ko.

* afrasay: you mean, bka magkaiba yung klase ng nabili kong thermo switch? actually sir, i brought the car itself sa isang tindahan sa banawe (99 civic vti, btw) and they gave me this japan-made thermo switch na compatible nga daw sa ride ko.

which made me wonder noong hindi nga gumana yung rad fan ko, if there's more reason ba other than thermo switch kaya ayaw umikot ng rad fan.
sa ngayon, balik disconnect ko muna ulit yung wiring ng fan sensor. wala nman pong problema tulad ng dati sa overheating or whatsoever sa temperature.
i'm going to have it checked sa isang dependable shop sana that deals with this kind of problem. guys, can you recommend a shop? bale sa mandaluyong po ang location ko.

TIA

[afrasay]

its possible na mataas yun temp rating na binigay sa iyo. pero it works naman and it maintains the engine operating temp kaya ok na yan. magugulat ka nga pag tag ulan or in cool weather like baguio almost di umaandar ang engine fan and even the aux fan even with the aircon on.

[afrasay]

check mo na rin yun thermostat. just recently pina check ko sa mechanic ko yun thermostat ko, nagulat ako wala siyang thermostat kaya pala from my house in marikina eh nasa libis c5 na ako malamig pa ang engine ko. ayun pinalagyan ko ng 71 degs na thermo, mag 1km nasa 80degs na siya. yun stock thermostat niya is around 85 to 90 degs pero i find this too high for our tropical climate. then tomorrow yun thermoswitch naman na 85 degs ang palitan ko. Again, I find the 100 degs thermoswitch too high for the aux fan to kick in for our weather. hirap ng ibaba at pag nag 100 to 110 deg. HTH

[afrasay]

btw, my aux fan has two speed, low and high. yun low speed is switched from the pressure sensor of the receiver/dryer of the aircon system. yun high is controlled from the thermoswitch that takes the temperature from the water in the engine.

[afrasay]

Speedy Fix along Shaw blvd. Tamang tama Honda ang ride mo...hehehe

[hakkinen]

maraming salamat sir afrasay sa mga insight mo.

i checked speedyfix's website, dito lang pala to sa shaw. mabisita nga as soon as i can. TY ulit!

[afrasay]

Update ko lang...nag palit na ako ng 81-85 degs thermoswitch. my engine now has a temp a hairline above 80 degs even in stop and go traffic yesterday noontime. dati nasa 90 and it even reaches 100 degs or more. I can now hear the fan on high speed which i seldom hear before this modification.

[Newbie1]

Update ko lang...nag palit na ako ng 81-85 degs thermoswitch. my engine now has a temp a hairline above 80 degs even in stop and go traffic yesterday noontime. dati nasa 90 and it even reaches 100 degs or more. I can now hear the fan on high speed which i seldom hear before this modification.

Sir,
Ano po yung car nyo? Pansin ko kasi yung radiator fan ko bubukas lang pag lumampas sa kalahati yung gauge ko (about 93 degs). Bagong palit na yung thermoswitch ko. Tanong ko lang san mo nabili yung 81-85 degs thermoswitch? Ano po brand at magkano. Sorry po sa dami ng tanong.
TIA.

[s_quilicot]

Update ko lang...nag palit na ako ng 81-85 degs thermoswitch. my engine now has a temp a hairline above 80 degs even in stop and go traffic yesterday noontime. dati nasa 90 and it even reaches 100 degs or more. I can now hear the fan on high speed which i seldom hear before this modification.

boss afrasay

are you reffering to your patrol?

in my case kasi (trooper) nagdagdag ako ng isang aux fan katabi ng stock aux with thermoswitch pero,m yung additional aux ko naka direct sa AC meaning pag on ko AC on din yung isang fan pero yung stock fan may thermo switch, pansin ko di na nag kikick-in yun stock fan ko.

does it have cons?


TIA

[benyaki]

boss afrasay

are you reffering to your patrol?

in my case kasi (trooper) nagdagdag ako ng isang aux fan katabi ng stock aux with thermoswitch pero,m yung additional aux ko naka direct sa AC meaning pag on ko AC on din yung isang fan pero yung stock fan may thermo switch, pansin ko di na nag kikick-in yun stock fan ko.

does it have cons?


TIA

comment ko lang po sa ginawa nyong additional na fan.. did you upgrade your wire for the additional aux fan?? or may separate na wire sya and relay?? kasi additional current will be subjected dun sa stock wire mo kung sakali.. pero kung hindi umaandar yung stock fan mo, ok na siguro yun.. hehehe.. in addition naman dun sa stock fan mo, kasi kung may separate na thermoswitch yung stock fan mo, baka mataas set point ng thermoswitch ng stock fan mo kaya once na umandar na yung additional fan mo dahil sa AC, di na umaabot sa set temperature ng thermoswitch mo kaya di na umaandar yung stock fan mo.. magulo ba?? hehehe..

[s_quilicot]

comment ko lang po sa ginawa nyong additional na fan.. did you upgrade your wire for the additional aux fan?? or may separate na wire sya and relay?? kasi additional current will be subjected dun sa stock wire mo kung sakali.. pero kung hindi umaandar yung stock fan mo, ok na siguro yun.. hehehe.. in addition naman dun sa stock fan mo, kasi kung may separate na thermoswitch yung stock fan mo, baka mataas set point ng thermoswitch ng stock fan mo kaya once na umandar na yung additional fan mo dahil sa AC, di na umaabot sa set temperature ng thermoswitch mo kaya di na umaandar yung stock fan mo.. magulo ba?? hehehe..

nope, gets ko naman


how much would it cost to replace a thermoswitch with a lower temp calibration?

TIA

[afrasay]

Sir,
Ano po yung car nyo? Pansin ko kasi yung radiator fan ko bubukas lang pag lumampas sa kalahati yung gauge ko (about 93 degs). Bagong palit na yung thermoswitch ko. Tanong ko lang san mo nabili yung 81-85 degs thermoswitch? Ano po brand at magkano. Sorry po sa dami ng tanong.
TIA.

Its a Mercedes-Benz 220E W124. I think you have a Benz too. Sa Delodur Libis po. 650php, Behr brand. Pero you need a little modification kasi the existing has two terminal while the new one has only one.

[afrasay]

boss afrasay

are you reffering to your patrol?

in my case kasi (trooper) nagdagdag ako ng isang aux fan katabi ng stock aux with thermoswitch pero,m yung additional aux ko naka direct sa AC meaning pag on ko AC on din yung isang fan pero yung stock fan may thermo switch, pansin ko di na nag kikick-in yun stock fan ko.

does it have cons?


TIA

Baka nag kick in din yun but you probably didn't notice it because your extra additional fan prevents or rather delays the water to reach the temperature where the stock fan is intended to kick in. I'm referring to my Mercedes-Benz 220E.

[s_quilicot]

Baka nag kick in din yun but you probably didn't notice it because your extra additional fan prevents or rather delays the water to reach the temperature where the stock fan is intended to kick in. I'm referring to my Mercedes-Benz 220E.

]
Nope, las friday kunuha ko trooper ko from casa (radiator replacement) then palabas na ako biglang 3/4 yung temp then to find out wala ng silicon oil sa clutch fan so dinagdagan pero while nasa 3/4 yung temp, yung aux fan with thermoswitch isnt kicking. now san pwede makabili nito?

saan banda nakalagay?

hindi kasi alam ng mekaniko na pinagtanungan ko.

[afrasay]

look for it near the water pump or where the upper hose is connected. naka screw yun with one or two terminals na may wire. yun sa akin you need to pull the terminal out then the high fan would kick in. on other makes with the aux fan on, pulling the wire would turn it off.