Corolla 1997 high temperature/overheating issues

[bail]

Been experiencing high temperature or almost overheating of engine and the water in radiator gets emptied fast if I use my car in the morning and especially if its very traffic and hot weather. But when I use it at night I dont seem to have these problems at all. Can anyone explain this issue and help me out on what to do?

[joey_ed27]

Irregardless of day & night might be a good idea to have the radiator checked for possible leaks. I once had a problem with my 98 corolla dami na kasing tagas. Had it repaired but after a few months ganun na naman. After I bought a surplus, have not had problems eversince.

[bail]

Can you recommend any good shop in fixing radiators? Im in the pasig area

[screws]

check your radiator or ac fan if its working. if both is working, then as joey suggested get your radiator check. if its not a radiator issue, you are looking on an expensive repair (engine overhual).

[DiliKoAmericano]

can you determine if the thermo fans (located on the radiator) are functioning at all when hot?
You should hear them turning on and off, and if you switch the air-conditioner on, they should both be on! If not then this is the issue and its a simple electrical fault.
Also, is there any cream coloured sludge being deposited on the inside of you oil filler cap? If so, this means you have a head gasket issue.
finally, do you get any white smoke out the exhaust when idling, if so then even more certain of head gasket issue.
Let me know how you go with these few checks.

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can you determine if the thermo fans (located on the radiator) are functioning at all when hot?
You should hear them turning on and off, and if you switch the air-conditioner on, they should both be on! If not then this is the issue and its a simple electrical fault.
Also, is there any cream coloured sludge being deposited on the inside of you oil filler cap? If so, this means you have a head gasket issue.
finally, do you get any white smoke out the exhaust when idling, if so then even more certain of head gasket issue.
Let me know how you go with these few checks.

[dr. d]

Been experiencing high temperature or almost overheating of engine and the water in radiator gets emptied fast if I use my car in the morning and especially if its very traffic and hot weather. But when I use it at night I dont seem to have these problems at all. Can anyone explain this issue and help me out on what to do?

possibilities:
1. you have a leak. it may be hard to find, as there are many thingees around the engine that the leak can hide behind.. check also your overflow cannister for leak; it may be the cause of it all.
2. your auxiliary fans are sub-optimal. they may spin, but not fast enough... the air sucked in is not enough. or they may not spin at all.
3. your radiator is clogged, making cooling sub-optimal.
4. you have a crack in your engine block, or a blown head gasket.
5. etc.

have fun troubleshooting.

[1D4LV]

Been experiencing high temperature or almost overheating of engine and the water in radiator gets emptied fast if I use my car in the morning and especially if its very traffic and hot weather. But when I use it at night I dont seem to have these problems at all. Can anyone explain this issue and help me out on what to do?

does your reservoir empty fast too? dr.d's correct, there are several reasons why a car overheats, but start from the basics.

a. radiator leak
b. thermostat malfunction
c. waterpump malfunction
d. too slow radiator fan
e. leaks from the hoses..

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Been experiencing high temperature or almost overheating of engine and the water in radiator gets emptied fast if I use my car in the morning and especially if its very traffic and hot weather. But when I use it at night I dont seem to have these problems at all. Can anyone explain this issue and help me out on what to do?

does your reservoir empty fast too? dr.d's correct, there are several reasons why a car overheats, but start from the basics.

a. radiator leak
b. thermostat malfunction
c. waterpump malfunction
d. too slow radiator fan
e. leaks from the hoses..

[bail]

the aircon is superlamig kahit naka low lang siya, but is it still possible there will be a radiator or fan problem?

[bail]

check your radiator or ac fan if its working. if both is working, then as joey suggested get your radiator check. if its not a radiator issue, you are looking on an expensive repair (engine overhual).

i dont think it needs an engine overhaul, pinacheck ko lang lately engine ko and it its still in good condition and running very well.

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check your radiator or ac fan if its working. if both is working, then as joey suggested get your radiator check. if its not a radiator issue, you are looking on an expensive repair (engine overhual).

i dont think it needs an engine overhaul, pinacheck ko lang lately engine ko and it its still in good condition and running very well.

[enzo6k]

also, check for some pin hole or hairline cracks on radiator hoses & rubber plugs

[rodetor]

Been experiencing high temperature or almost overheating of engine and the water in radiator gets emptied fast if I use my car in the morning and especially if its very traffic and hot weather. But when I use it at night I dont seem to have these problems at all. Can anyone explain this issue and help me out on what to do?

Meaning, you open your radiator cap at once when it overheats? How did you determined the water in your radiator be emptied fast? Hot steam might burst scald on you. Once you lift open your radiator cap when it gets overheats.

You have a leaked in your cooling system. If you find your temp rises more often when driving, and water/coolant level drops in your radiator and its reservoir. Insufficient coolant or water in your radiator because of a leak, will always make your engine temp rises above normal working engine temperatures.

Sent from my Starmobile UP+ using Tapatalk

[DiliKoAmericano]

the aircon is superlamig kahit naka low lang siya, but is it still possible there will be a radiator or fan problem?

Yes it is possible.
If the aircon is cold then chances are the AC fan is working, but there should be 2 fans side by side, one which turns on and off with the air-conditioner and one which turns on and off with the thermostat in the coolant cooling the engine. The airconditioner heat exchanger is actually located in front of the radiator, so that the compfort of the occupants of the vehicle are looked after more than the temperature of the engine!!
I just wanted to know if your fans are working at all! If they are, then its time to take a look at the condition of the air-conditioner heat exchanger, which may be blocking the flow of air over the radiator.
I suspect this is the case as airflow over the radiator has twice the effect as a liquid flow issue, and this corresponds to your description of the problem being non existent at night time.
Clean it out with a good hose to get rid of all the bugs and ensure all the fins aren't all mashed together blocking the flow of air to the actual radiator.

I highly doubt this is a problem inside the engine, if it was a flow problem, (thermostat stuck, rusted/worn impeller on water pump, or clogged radiator) you would be experiencing overheating every time you drive after say... 5 minutes.

Please do yourself a favour and flush the system again and use 50/50 coolant/distilled water form now on, it will be less problematic and any overheating will likely just result in the top 200 mls overflowing into the reservoir, and then get sucked back into the radiator on cool-down! Plain water will just boil as soon as there is an issue and you will have NOTHING cooling the engine!

Let us know how you go with this!

[bail]

Yes it is possible.
If the aircon is cold then chances are the AC fan is working, but there should be 2 fans side by side, one which turns on and off with the air-conditioner and one which turns on and off with the thermostat in the coolant cooling the engine. The airconditioner heat exchanger is actually located in front of the radiator, so that the compfort of the occupants of the vehicle are looked after more than the temperature of the engine!!
I just wanted to know if your fans are working at all! If they are, then its time to take a look at the condition of the air-conditioner heat exchanger, which may be blocking the flow of air over the radiator.
I suspect this is the case as airflow over the radiator has twice the effect as a liquid flow issue, and this corresponds to your description of the problem being non existent at night time.
Clean it out with a good hose to get rid of all the bugs and ensure all the fins aren't all mashed together blocking the flow of air to the actual radiator.

I highly doubt this is a problem inside the engine, if it was a flow problem, (thermostat stuck, rusted/worn impeller on water pump, or clogged radiator) you would be experiencing overheating every time you drive after say... 5 minutes.

Please do yourself a favour and flush the system again and use 50/50 coolant/distilled water form now on, it will be less problematic and any overheating will likely just result in the top 200 mls overflowing into the reservoir, and then get sucked back into the radiator on cool-down! Plain water will just boil as soon as there is an issue and you will have NOTHING cooling the engine!

Let us know how you go with this!
-----------------------------------------------------
can you determine if the thermo fans (located on the radiator) are functioning at all when hot?
You should hear them turning on and off, and if you switch the air-conditioner on, they should both be on! If not then this is the issue and its a simple electrical fault.
Also, is there any cream coloured sludge being deposited on the inside of you oil filler cap? If so, this means you have a head gasket issue.
finally, do you get any white smoke out the exhaust when idling, if so then even more certain of head gasket issue.
Let me know how you go with these few checks.

Thanks for your inputs. Ive checked both fans and so far both are working well. The one in front is working normally which turns on and off from time to time and the other fan located at the back is in the normal speed. I also checked the hoses and all are smooth and looked fine and no evident leakage. But theres one I noticed with hairline crack which is somewhat connected to the engine. I also saw an out of shape rubber like thing in the suspension Im not sure what it is.







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Yes it is possible.
If the aircon is cold then chances are the AC fan is working, but there should be 2 fans side by side, one which turns on and off with the air-conditioner and one which turns on and off with the thermostat in the coolant cooling the engine. The airconditioner heat exchanger is actually located in front of the radiator, so that the compfort of the occupants of the vehicle are looked after more than the temperature of the engine!!
I just wanted to know if your fans are working at all! If they are, then its time to take a look at the condition of the air-conditioner heat exchanger, which may be blocking the flow of air over the radiator.
I suspect this is the case as airflow over the radiator has twice the effect as a liquid flow issue, and this corresponds to your description of the problem being non existent at night time.
Clean it out with a good hose to get rid of all the bugs and ensure all the fins aren't all mashed together blocking the flow of air to the actual radiator.

I highly doubt this is a problem inside the engine, if it was a flow problem, (thermostat stuck, rusted/worn impeller on water pump, or clogged radiator) you would be experiencing overheating every time you drive after say... 5 minutes.

Please do yourself a favour and flush the system again and use 50/50 coolant/distilled water form now on, it will be less problematic and any overheating will likely just result in the top 200 mls overflowing into the reservoir, and then get sucked back into the radiator on cool-down! Plain water will just boil as soon as there is an issue and you will have NOTHING cooling the engine!

Let us know how you go with this!
-----------------------------------------------------
can you determine if the thermo fans (located on the radiator) are functioning at all when hot?
You should hear them turning on and off, and if you switch the air-conditioner on, they should both be on! If not then this is the issue and its a simple electrical fault.
Also, is there any cream coloured sludge being deposited on the inside of you oil filler cap? If so, this means you have a head gasket issue.
finally, do you get any white smoke out the exhaust when idling, if so then even more certain of head gasket issue.
Let me know how you go with these few checks.

Thanks for your inputs. Ive checked both fans and so far both are working well. The one in front is working normally which turns on and off from time to time and the other fan located at the back is in the normal speed. I also checked the hoses and all are smooth and looked fine and no evident leakage. But theres one I noticed with hairline crack which is somewhat connected to the engine. I also saw an out of shape rubber like thing in the suspension Im not sure what it is. There were no white smoke or cream colored sludge either.

[jick.cejoco]

The first picture shows cracked air intake hose that causes "false air" or unmetered air leading to extra lean air fuel mixture. The overly lean air fuel mixture causes abnormal high temperature combustion temperature characterized by overheating and smelly tail pipe emissions

[bail]

The first picture shows cracked air intake hose that causes "false air" or unmetered air leading to extra lean air fuel mixture. The overly lean air fuel mixture causes abnormal high temperature combustion temperature characterized by overheating and smelly tail pipe emissions

So its the cause of the overheating?

- - - - - - - - - - - - - - - - - - - - - -

The first picture shows cracked air intake hose that causes "false air" or unmetered air leading to extra lean air fuel mixture. The overly lean air fuel mixture causes abnormal high temperature combustion temperature characterized by overheating and smelly tail pipe emissions

So its the cause of the overheating?

[bail]

By the way, how will you know if the overheating has damaged your engine? So far my engine still running smoothly despite of the overheating issues. Im just not sure if its really an overheat since the gauge was still in the middle when then engine suddenly stops and when I opened radiator cap I can only see the hot steam but no smoke or whatsoever.

[1D4LV]

By the way, how will you know if the overheating has damaged your engine? So far my engine still running smoothly despite of the overheating issues. Im just not sure if its really an overheat since the gauge was still in the middle when then engine suddenly stops and when I opened radiator cap I can only see the hot steam but no smoke or whatsoever.

imho, you cannot really tell unless there are symptoms of engine damage.

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By the way, how will you know if the overheating has damaged your engine? So far my engine still running smoothly despite of the overheating issues. Im just not sure if its really an overheat since the gauge was still in the middle when then engine suddenly stops and when I opened radiator cap I can only see the hot steam but no smoke or whatsoever.

imho, you cannot really tell unless there are symptoms of engine damage.

[bail]

By the way, I just noticed that my coolant reservoir is always empty. I never use any coolant. although i always fill up my radiator with water. Is this normal?

[1D4LV]

By the way, I just noticed that my coolant reservoir is always empty. I never use any coolant. although i always fill up my radiator with water. Is this normal?

nope... it means that the water is not circulating, or is lost somewhere.
check for leaks, and check the condition of your thermostat.

[bail]

By the way, I just noticed that my coolant reservoir is always empty. I never use any coolant. although i always fill up my radiator with water. Is this normal?