Hi, I got some question about my wira (1.6A) temperature. "Know about car things little only, need some recommend from the expert."

In this few days, i noticed that my temperature is pointing at the middle of the gauge.


Then my question is:
1. Does the temperature pointed at middle is consider normal? or hot?
2. when i run high speed around 120km/h at highway, the temperature start climbing above middle slowly. Will it be dangerous?
3. What kind of issue cause this kind of problem?

I checked the water level is full. 2 fans work together. water pump just change last 2 years.


P/S : if u say removing the thermostat solved the prob. that's not the answer i want. cause i heard ppl say thermostat is needed. So do avoid this answer for me.

As the picture below shown, the red circle is my current car temperature operate.(Q1)
Then the yellow circle is appear when i run high speed in highway. (Q2)

This post has been edited by alex458: Feb 14 2012, 12:53 AM


Attached thumbnail(s)

ur engine is healthy or not?

linear
more kmh = more engine rpm = more heat...so the engine in yellow circle is running hotter than the red one...cooling agent like coolant/water drain as well? or is it remain the same...it could be the gauge itself...

any leakage signs?

ideally the pointer must be pointed between level 3 and 4..
my experience is that sometimes the needle can climb till level 5 but eventually will settle itself within level 3 and 4..

i think ur thermostat is slip out of level already..might need to recalibrate of replace..

How bizzare.

I've opposite situation as yours.

My car water temp will raise when I'm in traffic Jamming, it will raise up until level4.5.
It immediately falls back to level 3.5 when I leave the Jam zone and speed up to 75kmph, and never ever raise temp beyond that speed. ):

Thinking that your problem might be the thermostat being not healthy?

This post has been edited by kentchow75: Feb 14 2012, 01:15 AM

more kmh = more engine rpm = more heat. true about that.
I not sure my water is draining or not since the temperature is high. So i will check later morning and see wherever is working fine or not.

I'm sure the gauge should not have prob since before i use this car 3 years ago, the whole set gauge,(temp, tachometer, etc etc) has change to new set 1 and my ODO meter is reset to 0.

So i thikn should not be the gauge prob.

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Added on February 14, 2012, 1:27 amcould be. or could not be. haiz... i have to let my dad check and see what he say. he do told me before when car move and stop or hv a long run, the temperature will operate at red point. hmm~

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Added on February 14, 2012, 1:30 amHahaha.... actually ur situation also happen in my car.
When coming jam, the temperature sure will climb since we hit accelerate and brake, the engine sure will get hot 1.

when avoid jam area, the temperature will fall back lo~

Thermostat not healthy? hmm~ could be...... not sure that time service got change the thermostat or not. ><||

This post has been edited by alex458: Feb 14 2012, 01:30 AM

If middle still can accept, if over the middle line.. I think you need to check your car...

Sometime brake jamed, thermostat rosak, engine & gearbox issue (Got check & service your engine/gearbox oil level or not?!?), water pump jam/or fin broken, radiator rusty & not enough coolent (1:1 ratio) also can coz engine heat... Just sent to a nearby mechanic shop to check it out...

This post has been edited by littlefire: Feb 14 2012, 09:38 AM

TS,
Assuming ur water pump, thermostat n fan r working perfectly wit no leakage, I'm suspecting a couple of blocked water lines in d radiator. U might wanna send ur radiator for flushing n servicing.

Just went down and check the radiator water is draining or not. I found my water didn't drain well like last time. look like my radiator has some rust stuck inside.
soon going to flush the radiator.

How much will it be cost to flush radiator? @@
less than 100?

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Added on February 14, 2012, 10:26 amGoing to send to shop flush my radiator and see 1st. last time i serviced the people help me change the coolant alrdy and my dad accidentally add water into it.
haiz... "cant blame my dad since he didnt know i use coolant on my car"

anyway, i got a question:
How long a radiator should be flushed?
2-5 years? without coolant?
3-5 years? with coolant?

This post has been edited by alex458: Feb 14 2012, 10:26 AM

This should not happen when everything is normal. Please check your radiator fan. Its either not running or running too slow.

This post has been edited by tiganasfx: Feb 14 2012, 10:59 AM

I think you better check your radiator and coolant. My 1995 wira 1.6A go up genting also, the temp gauge nvr exceed middle line.

Unless your coolant is premix coolant, you ARE suppose to add water to mix with your coolant. Coolant alone will not be able to cool your radiator down fast enough.

This post has been edited by SnoWFisH: Feb 14 2012, 11:03 AM

Depending on your radiator condition, if the radiator is totally rusty and beyond service.. Better buy a new 1...

If with coolent ( I only support genuine Toyota long life Coolent!), i think almost 10 years the radiator & water wont rusty also.. But is better to change the coolent & service it every 100,000km or 5 years..

Without coolant? I think almost yearly (Maybe months only!) must service... few days only the radiator will sure got rust de..

Ur question too much for me to ans ~ =.=||
I only answer the related part. yala~ that's y i nvr accept that solution. removing thermostat? hell no way.
I'm using castrol lubricant and sometimes i use pennzoil lubricant. depend on my dad order which 1.
now i pump BHP 95. Normal engine only, no modification.

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Added on February 14, 2012, 11:12 amWow
Wira can climb up to genting?

ur wira are strong ~
i'm sure my car is 50/50 coolant and water. somehow i think maybe is the rust causing the prob.


This post has been edited by alex458: Feb 14 2012, 11:12 AM

Can ler why not....use 2nd Gear . Oh, i'm using Petronas R95 btw, so far that's the best petrol for me.
Im using Rm40 Sharlu mineral oil sommore haha...go up without problem...at least dint get smoked by those unker in nissan taxi's .
Yeap check the rust, i have a feeling there must be a small crack or leak somewhere in your radiator...

This post has been edited by SnoWFisH: Feb 14 2012, 11:18 AM

buy a new radiator ka? maybe i gonna save that money for other purpose. my wira alrdy 17 years old liao.
scare after change radiator, other thing rosak and service service again and again.

well previously my car havent run coolant before, it alrdy run with water ==||

and i was told by my dad: once water decrease or what, add water to fill it max. i think the condition for my radiator is full of rust gua.

There is a question i'm wondering.
Does the engine timing will cause the engine more hot? "i mean the RPM, sorry poor english."
and also i heard people say nissan coolant also not bad. hmm~

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Added on February 14, 2012, 11:20 amHahahhaha
so far i use BHP because it more quite and my engine more smooth abit. xD
if say leaking, i check my floor just now and there is no sign on leaking. except i open the radiator cap and water flow out only ~

This post has been edited by alex458: Feb 14 2012, 11:21 AM

Bro, if your radiator got stuck inside & too rusty even the radiator shop will ask you to buy new 1.. Why waste so many time servicing it, if a new local radiator cost around RM200?!?

Cause what can i say, that's not my car. i get it from my uncle side there and use only. well i dun wan spend too much money on it. but minor service wherever needed.

Assuming i change radiator, my dad sure will bla bla on me waste money fr bla bla ==||
so i wan avoid it from my dad again ~

I phobia kena overheat...happened to my Benz...then my Vios...once car kena overheat it will never be the same again....always asking for money to repair this and that in the engine bay.

For your case, if you are wondering if its overheat or not....just send it to the SC for checking...it might be expensive, but outside shop also cut-throat. Most (not all) outside shop always say they are expert changing this and that, but eventually, you have to go there again to solve the issues and then some. So its better to send it to the SC.

For overheat issue, better treat it fast before its too late.

Sometime saving it from not fixing it, only will cause the problem still happen... If ur car suddenly overheat again and stall somewhere in the middle road.. Later ur father will scole u why no fix it that time.. That time u sure kau lat loo... Need to skim the head & overhaul everything... Better go check in a reputable mechanic shop and c..

every time i drive, i will check temperature wherever operate at normal temperature or not."ensuring myself it all way fine" Just now go out buy thing and check the temperature whole way go and back. it stick at middle point. i guess still allrite. i guess the moment i go back hometown i let my dad go service lo

2 fans work fine. check the floor only air-cond water only. no water leak from radiator.

Car temp up is not your fault, i'm sure your dad understand.

But if car temperature overheat until breakdown the car, than that is your fault! And the damage will be so bad that you will eventually sell the car due to problematic.