Car overheating within 20 mins of drive

[asharshahab7]

I m sure it aint the thermostat fault because the one i replaced i checked it by putting it in water on stove and at near the boiling the valve opened it was fine but it was also not working in the car..
The water flows out from the neck after 2-3 mins but the hoses no it has the same upper hot lower normal.
It is the upper hose directly connected to the metal fitting where the hose towards throttle is going and one hose towards the heater core and air bleeder housing.

[asharshahab7]

@xzap042 bhai it doesnt loose any coolant instead my reservoir bottle gets overflowed.
Can we check that the radiator is blocked by any means?

[asharshahab7]

But every mechanic even a chotisi dukaan wala kehta hai gasket change krdoon like halwa lgta hai inko tw kya krna chahte hain y log?
The mechanics are suggesting to remove the t.valve first they say it will be fine after valve is removed and fan is direct should i remove it then just to see that it works?

[asharshahab7]

I m gone bhai

[mehran]

Try all options before changing gasket. First check if water is circulating. Start car when engine is cold and open radiator cap. Water should be slowly moving. Even if it is not moving in the start it should start moving once the engine warms up. If it moving then your water pump is OK and t valve is ok. If water is not moving then probably your t valve is stuck in closed position or your water pump is not working (fins corroded or pump bearing hard). Reconfirm by removing t valve and checking if it's stuck. If t valve is OK then water pump is most probably gone. I experienced water pump failure but unfortunately due wrong diagnosis by mechanic, he changed a perfectly good gasket and later found water pump defective.

[dani_kk]

Sir jee, use coolant. Coolant will help you to identify the leaking spot easily... Paying for coolant price is more expensive or replacing the assembly is??? Choose yourself

[pwuser151695687894]

Thanks for reply I m from Bahawalpur

[xzap042]

Remove t valve, start car with radiator cap removed. You should see water flow. If not your water pump is faulty. Check the temp at which t valve opens, sometimes they open at wrong temp due to incorrect spring tension. Now when car begins to warmup, as i mentioned earlier check each tube of radiator, you would feel gradual temp decrease from top to bottom. A cold tube as compared to others means it's blocked.
Also as I mentioned once car is warmed up you cannot tell the temp difference between upper and lower radiator hose by touching with hand, both will be hot enough that you cannot touch either of them. In this state if your lower hose is cold then definitely it's your radiator issue.
While you're at it, replace the radiator cap as well with a Japanese one. Sometimes new ones are also faulty.

[asharshahab7]

update: so guys after so many days i m back done some experiments i hope any one of you guys understand the issue.
* coolant as not added instead distilled water was used.
* t.valve was removed by mechanic the rubber seal was placed on housing and a rtv sealant.
* fan was kept automatic. it turns on when AC is on.
* i checked both the t.valve by putting both of them in a pot and they opened when water was near boiling.
the condition so far i have observed is
* car not over heating according to the temperature gauge.
* pressure built up a few kms on the upper hose which my radiotor man said is very dangerous as it cracks the bottom so the pressure was again and again removed by opening the cap to prevent radiator failure, but after a few kms the hose was normal both hoses were same in temp and no pressure was seen in the upper hose.
*the car runs perfect on the runs where there are no signals and traffic jams even travelled to karachi and back to hyderabad without any issue.
*in karachi where there were road jams or traffic signals on short distances the car's AC stops cooling, after 1 hour of rukti rukati drive the Fan was on for the first time the car was not heating according to the temp gauge but i felt it was heated when i opened the hood the car's carpet was heated as well from where the exhaust piping were passing. but after 4-5 mins on ACC switch the fan was shutted off.
* bubbles still coming out of the radiator when cap is removed.

[asharshahab7]

when t valve is removed the water goes up and down when i start the engine, bubbles appears and water also flows out of the radiator.

[asharshahab7]

im afraid it would cut the rust again and would cause something to leak again

[asharshahab7]

water flows out of the radiator.
the t.valves opened at 85 degrees centigrade approximately.

[Xulfiqar]

Firstly, your radiator champion is a moron, the pipes will get hard in normal condition.

Do not judge heat by feeling it, use an obd scanner to see if its overheating or not.

Thirdly flush system and fill with correct coolant mix and bleed properly.

Tip: when filling an empty system open the bleeder valve so air can escape as its filled. Then start engine and let it bleed air as it warms up, add coolant as required.

Once settled, its done.

To make life easier, make a bleed apparatus with a junked radiator cap, all you need to do is chop the pressure head of the cap off, drill a hole in it, solder a tube to it so its raised about 5 inches, stick a funnel in that so its tight.

This elevates liquid level and forces air out.

You can achieve this with a tight fitting funnel directly in the radiator cap opening.

[dani_kk]

Not a good sign

[dani_kk]

Yes exactly a liana came to me, which I've posted in Suzuki liana thread about m13 to m15 conversion.
I fixed the leaks first then the guy ran with obd2 hooked up, and fan was direct. While idling car was good. But once it used to go up 1500rpm mark it used to overheat alot.temp used to touch 116 to 118 degrees.

Compression test pointed at third cylinder
And my analysis was dead accurate.
Pulled the head off too, and it was coolant to compression breach.

[asharshahab7]

Zulifiqar bhai i have self fixed the issue every mechanic in earth digged my cash and nothing works except the removal of t.valve
but i wanted to keep the valve so the car operates at an optimal temperature and plus my heater works which was not working when t.valve is out i searched alot and found a diy guide for this issue
which is
https://agradetools.com/tip-2/
i drilled a hole the same way and now the car's doing great without any issue plugs are fine pickup is good coolant stays where it is heater worked all winter long Ac is working fine temperature remains optimal hence everything is back to normal i thanked the article for saving my swift engine
while thank you to you too @Xulfiqar bhai
and thank you @dani_kk bhai

[Xulfiqar]

The factory thermostat on liana already has a jiggle valve and is clocked to 12 o clock when installing.

Was your thermostat not original?

[mirwan]

Going off topic so what you guys recommend a person should go for kabul engine or head gasket change if there is a issue with his head gasket.

[capsat]

change the head gaskit. use thermostat valve, fans connected to run automatic, correct engine oil grade and coolant in system ...

ONLY Rebuild ENGINE if required

Never opt for scrapyard engine., stay away

[mirwan]

Muja ak bat samaj nhi ati without Torque wrench Engine rebuild kesa karta hai yaha log ?