Corolla temperature problems

[LevinBZ]

Hello mga bossing,

First time posting. Hingi lang sana ko advice re Corolla (AE101?) ung bilog,
133k+ mileage .Yung temperature kasi niya tumataas, kapag stop & go
traffic (rush hour EDSA). Pero pag typical driving around lang regular (approx 1/2 sa gauge).

So far eto na ang ginawa:

- Jumpered radiator fan
- Thermostat removed
- Radiator cleaning

Chineck ko wala namang leaks, full naman ang coolant kahit mataas na ang temp (3/4 of gauge). OK naman ang auxillary fan, A/C malamig.

Pinatingin ko na sa iba't-ibang shop, medyo iba ang mga opinyion nila, yung isa sa sabi thermoswitch/thermostat daw kelangn ibalik then irewire sa original yung fan, yung isa naman sabi baka daw gasket no need daw ibalik thermostat. Help naman po.

Thanks

[senna]

Hello mga bossing,

First time posting. Hingi lang sana ko advice re Corolla (AE101?) ung bilog,
133k+ mileage .Yung temperature kasi niya tumataas, kapag stop & go
traffic (rush hour EDSA). Pero pag typical driving around lang regular (approx 1/2 sa gauge).

So far eto na ang ginawa:

- Jumpered radiator fan
- Thermostat removed
- Radiator cleaning

Chineck ko wala namang leaks, full naman ang coolant kahit mataas na ang temp (3/4 of gauge). OK naman ang auxillary fan, A/C malamig.

Pinatingin ko na sa iba't-ibang shop, medyo iba ang mga opinyion nila, yung isa sa sabi thermoswitch/thermostat daw kelangn ibalik then irewire sa original yung fan, yung isa naman sabi baka daw gasket no need daw ibalik thermostat. Help naman po.

Thanks

Na experience ko na yan...candidate na yan for top overhaul...palit ng cylinder gasket yan...palit ka na din ng rubber pluggers malapit dun sa thermostat baka kasi mabutas yun dahil erratic na yung temp ng kotse mo...palinis ka na din ng radiator (isa isang susundutin yung outlets sa loob ng radiator)...yung coolant nakakabara yan sa radiator...dapat di ka nagpa jumpered ng radiator fan, sisirain nya yung fan kasi derecho ang takbo nun...

[jick.cejoco]

Hello mga bossing,

First time posting. Hingi lang sana ko advice re Corolla (AE101?) ung bilog,
133k+ mileage .Yung temperature kasi niya tumataas, kapag stop & go
traffic (rush hour EDSA). Pero pag typical driving around lang regular (approx 1/2 sa gauge).

So far eto na ang ginawa:

- Jumpered radiator fan
- Thermostat removed
- Radiator cleaning

Chineck ko wala namang leaks, full naman ang coolant kahit mataas na ang temp (3/4 of gauge). OK naman ang auxillary fan, A/C malamig.

Pinatingin ko na sa iba't-ibang shop, medyo iba ang mga opinyion nila, yung isa sa sabi thermoswitch/thermostat daw kelangn ibalik then irewire sa original yung fan, yung isa naman sabi baka daw gasket no need daw ibalik thermostat. Help naman po.

Thanks

levinbz,
you definitely need the thermostat. you can go back to previous threads on thremostats. if the gauge displays 75%, it does not mean it is overheating as long as the gauge needle does not reach the red line. your fan thermoswitch might not be enabling the fan relay at the right temperature (sean paul) because it might be worn out or the sensing tip is coated with calcium/lime buildup if you have not serviced your antifreeze/coolant or you have been using plain water. have the ignition timing checked and check for engine vacuum leaks. if the exhaust gases smells like rotten eggs at times, suspect a vacuum leak that's causing too high of combustion and the sulfur in the gasoline is reacting to combustion.
jick

[LevinBZ]

Thanks sa mga reply.

Kaya po tinanggal dati yung thermostat & nirekta ang fan before is dahil sa erratic temp. If mapalitan kaya ng bago thermostat and maibalik sa dati wiring ng rad fan may difference ba? or dapat na ibaba makina and ipacheck .

May alam po ba kayong okay na autoshops na hindi casa price?

Thanks

[jick.cejoco]

Thanks sa mga reply.

Kaya po tinanggal dati yung thermostat & nirekta ang fan before is dahil sa erratic temp. If mapalitan kaya ng bago thermostat and maibalik sa dati wiring ng rad fan may difference ba? or dapat na ibaba makina and ipacheck .

May alam po ba kayong okay na autoshops na hindi casa price?

Thanks

levinbz,
what you had them do by removing the thermostat and jumpering the radiator fan circuit is inject two new problems. you do not fix a problem with another one or more. check engine vacuum at idle. it will tell you if the intake has a leak. it is similar to an oxy-acetylene torch; to get the flame hotter you add oxygen. in this case, more air for the same amount of fuel which makes it too lean and hot. or check your engine temperature using an infrared thermometer, who knows it is your gauge that is faulty.
jick

[LevinBZ]

Thanks a lot. Akala ko di ganun importante thermostat sa mga maiinit na klima tulad ng Pilipinas. Currently reading "The Great Thermostat Debate", very informative.

[gremz]

Hello,

Same ride here AE101, ganyan din dati sa akin masyado mainit ang makina, walang thermostat nung nabili ko yung sasakyan.

Pa check mo muna yung aux fan, baka mahina na ang ikot (umiikot pero mahina ang suction) or baka sira na, kaya pag stock ka sa trafic eh nagiinit.

first thing first, lagyan mo ng thermostat, chk mo yung thermostat mo kung mag open siya kung maninit/malapit na kumulo yung tubig ( in short pakuluan mo yung thermostat mo, bubukas yun kapag na reach nya yung temp/ which is 82deg.

next chek mo yung thermoswitch, mas maganda siguro palitan mo na.

next is palinis/overhaul mo yung radiator. Mas maganda bago mo palinis eh paulit ulit mo i drain (drain/refill drain refill) ka para pati yung nasa engine eh malinis.

Pag naibalik na yan, lagyan mo ng coolant 50/50 mixture.

Check mo na rin yung condenser fan, nakakatulong yan.

[nickel68]

Guys, we have the same ride pero hanggang 1/2 lang yung temp. nia. May mga suggestions ako maybe this will help.
1. Mag flushing ka sa engine and radiator, may nabibili na flushing fluid sa Handyman, DIY lang just follow the instruction on the bottle. Sa flushing this will remove the scales present inside the engine water jacket, lalo na kung di ka gumagamit ng coolant. Note, scales in the wall will reduced the heat transfer from the combustion chamber to cooling water and will increase the engine temp.
2. Check the main fan RPM, kung mabagal na then it will suck lesser air passing the core of the radiator, ang effect nito tataas yung engine temp. lalo na kung nasa traffic situation ka kasi yung suction effect ng fan gaay mahina na. Note may pagbabago kung moving na yung car mo, kasi may suction na from fan plus the air stream from the movement of the car.
3. Try mo rin fix some foam sa mga gaps between the condenser & radiator, para almost 100% ng air stream dadaan sa radiator core.
Yun lang po.

[rusem]

Hello mga bossing,

First time posting. Hingi lang sana ko advice re Corolla (AE101?) ung bilog,
133k+ mileage .Yung temperature kasi niya tumataas, kapag stop & go
traffic (rush hour EDSA). Pero pag typical driving around lang regular (approx 1/2 sa gauge).

So far eto na ang ginawa:

- Jumpered radiator fan
- Thermostat removed
- Radiator cleaning

Chineck ko wala namang leaks, full naman ang coolant kahit mataas na ang temp (3/4 of gauge). OK naman ang auxillary fan, A/C malamig.

Pinatingin ko na sa iba't-ibang shop, medyo iba ang mga opinyion nila, yung isa sa sabi thermoswitch/thermostat daw kelangn ibalik then irewire sa original yung fan, yung isa naman sabi baka daw gasket no need daw ibalik thermostat. Help naman po.

Thanks

dirty / clogged radiator...

during start / stop driving. water is circulating inside the radiator but due to dirt and its starting to clog. heat transfer is suffering. rememeber coolant is cooled through heat transfer between air and coolant sa radiator, kahit ok ang fan... the moment you drive at cruising speed and temperature reverts to normal it is because of the increased amount of air forced into the rad fins during cruising speeds thus offsetting the poor heat transfer inside the radiator during start / stop driving where only the fan is inducing air through the radiator. hope this helps...

[max-o]

same problem bro. check everything except the water pump.after installing the new water pump back to normal temperature. car is honda civic 95.