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Thread: Bubbles in car radiator

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    Default Bubbles in car radiator

    Dear fellows, i need your expert advice.
    A few days ago i got my Suzuki cultus model 2004 head gasket replaced as car was overheating and bubbles were observed in radiator.
    Now after gasket replacement, there are still large bubbles occasionaly coming out in radiator. Although car is not overheating but after half an hour drive with AC on, the radiator water starts spilling in water bottle. Temp needle stays at normal position.

    What can the problem be now?

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    ok ...
    check your radiator condition as well as fan speed ..
    -

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    First of all get your car's heat sensors checked. I don't think needle should remain at normal position if radiator is spilling water. Secondly, get the radiator cleaned thoroughly & check fan speed as well as mentioned by "scorpion80". You may need to install a relay if fan speed is slow.

    After cleaning the radiator, carefully watch that the mechanic is properly connecting the pipes & no pipe is un-duely pressed from somewhere... Mechanics often do such blunders to get rid of the task...

    I am sure these steps will either solve the problem or you will atleast identify the point of failure.

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    I yesterday cleaned the radiator with radiator flush but radiator condition is bad. Most of its fins are deshaped.

    My question is why bubbles are still appearing?

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    i still think you have compression loss through head gaskit
    its all about power to weight ratio...

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    Quote Originally Posted by rashed View Post
    I yesterday cleaned the radiator with radiator flush but radiator condition is bad. Most of its fins are deshaped.

    My question is why bubbles are still appearing?
    Radiator flush is useless... Go to workshop & get it cleaned properly. I think this will solve ur problem

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    coz their is no thermostat valve in your car! it has been removed

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    Quote Originally Posted by haroon_1 View Post
    coz their is no thermostat valve in your car! it has been removed
    sorry i could not get you? Do u mean that due to absence of thermostat valve, the bubbles are coming?

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    Leave the engine running @ roughly around 1500 RPM and keep it there for 30 to 40 seconds with the radiator cap removed, Then check if there are still bubbles coming out. If yes then there is a probability that there is corrosion in the engine head or engine block around the piston rings.

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    usually mechanic removes the thermostat valve after replacing head gaskit e.t.c! this is done to keep temperature colder! if dere is no overheating and reduction of water then all is normal. your problem is not a problem this all is due to the removed thermostat. if water is not reducing and car is not overheating then it is normal dun worry!
    when the valve is removed the water circulates the whole water body freely due to this the bubbles are produced.
    i think this will help u!
    regards!

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    Quote Originally Posted by haroon_1 View Post
    usually mechanic removes the thermostat valve after replacing head gaskit e.t.c! this is done to keep temperature colder! if dere is no overheating and reduction of water then all is normal. your problem is not a problem this all is due to the removed thermostat. if water is not reducing and car is not overheating then it is normal dun worry!
    when the valve is removed the water circulates the whole water body freely due to this the bubbles are produced.
    i think this will help u!
    regards!
    sounds good, thanks

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    Today evening, i am going to my mechanic for a thorough check. I shall update tomorrow morning.

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    Yesterday, i got my car checked from Khan Autos(Faisal Khan). First its temp sensor was checked which was ok. Although it was assured that gasket was not leak, even then head bolts tightened a bit. Bubbles are still present in radiator but no overheating issue.
    Let's hope for the best.

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    Bubbles in Radiator is always an indication of head Gas Kit failure. I believe that your mechanic has not done it right. Recently I have experience slight bubbles in Radiator of Honda City 2007, I took the car to multiple mechanics and all of them said that it does not matter as intensity is low. I had this thought in mind that are they really qualified enough as they are providing such a careless verdict and not trying to point out the reason for these bubbles. Eventually a mechanic agreed with me that it’s a headgaskit failure but I can still drive my car but problem is bound to increase and will put you in trouble very soon and will eventually can damage the engine. In simple words their diagnostic skills are very week because they have never read a book and all they have learnt is through their USTADS. They know how to open the Headgaskit and replace this but in simple words they wont be able to diagnose well.
    Eventually I went for a headgastkit replacement immediately and later mechanic showed me the burnt headgaskit and it was in miserable condition and he appreciated the fact that I took the action on time.

    Brother let me narrate you a second incident that I went to Lahore on Corolla 2007 whose Radiator busted in Liberty market. I would not go into detail but this it all happened because of my mistake of using Acids on the radiator for cleaning. The wise thing I did once the temperature went to red was that I parked the car on road side as this happened instantly and waited for the engine to cool down and then once it was cold again I started the car and poured the water into the radiator and took the car to the Radiator guy to correct the leakage. Once leakage was corrected then he poured the water inside the radiator and I started the car. Bubbles were coming out from the radiator. I was afraid in the start but later it stopped. This was because of a vacuum in the engine area not a problem with headgaskit. So vacume is suppose to disappear within 2-3 minutes and any thing after that is an indication of Headgaskit failure.

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    im guessing you are using plain water in the radiator. flush it out and pour in two bottles of radiator coolant eg. osaka green coloured coolant.
    Don't vote for those who have experience of consistently wrong priorities. WE NEED CHANGE. insaf.pk

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    ideally there should be no bubble.
    wow
    do replying ,encouraging/discoraging me

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    swap the radiator from Bilal gunj if the fins are deshaped and engine corrosion has clogged the tubes, use coolant when you replace the radiator. It is just like Lungs for the car faster & cooler the circulating water better the performance.
    - www.crackwheels.com - A skilled Dictator is much more beneficial to Country......than a Democracy of Ignorant people

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    yesterday put DK coolent in radiator and bled it thoroughly. Apparently there are no bubbles now but keeping it under observation. Tomorrow i will be on long tour and if there is any problem it will be probably highlighted.

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    rashed
    so is it ok now
    wow
    do replying ,encouraging/discoraging me

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    Gaskit problem nothing else!!!
    The Bug.. that never gets thirsty...

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