Radiator overflow
 

The radiator keeps overflowing into the tank at the side of the radiator, is this normal? if i fill the radiator to the top and the fill the tank to the maximum mark i end up with nearly a full tank after i have finished my journey! and the radiator needs topping up!

so i just take the water from the from the tank and just pour it back into the radiator,

Is this normal???

Matt

Re:Radiator overflow
 

Sorry to tell you, but it sounds like a blown head gasket. I ------- hate those. >:( Check the radiator cap first, but it sounds like a head gasket. :-\
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Re:Radiator overflow
 

no water is disapearing it is just going from the radiator into the tank, if i take the water from the tank and put it back into the radiator there is exactly the same amount of water as when i started!

Its just a pain in the ass to keep putting it back into the radiator!

What makes you say it is the Headgasket Dr.Boost?

And i had the standard radiator cap and it did it and then i bought a spoon sports radiator cap and i did the same with that one as well.

Matt

Re:Radiator overflow
 

Hmmm...check the oil. That sounds like a head gasket for sure if the cap is good. Any oil in the water that you can see?
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Re:Radiator overflow
 

Mine does that whenever the car is off the overflow tank gets lower. When the car is on and has warmed up a bit it fills up to the same level it always is. Isnt that just water heating up and expanding?

Re:Radiator overflow
 

Oh ----, I missed that. That is normal just as Blind said. I thought you were losing fluid. Haha, you have been taking the fluid from your overflow and putting it back into the radiator! ;D I've done dumber things. ::) Just look at this post. I was trying to tell you to replace your head gasket for no reason. :'(
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Re:Radiator overflow
 

hehe.. Yeah just fill up coolant whenever the car is warmed and has been driven a bit. Otherwise it goes over the line.

Re:Radiator overflow
 

I thikn i have the same problem. I feel my radiator up all the way up. And fill the reservoir tank up with water. The reservoir tank will overflow and eventually the tank will be gone. Is this a sign of blown headgasket?

Re:Radiator overflow
 

i don't think your head gasket is bad. i think your waiter temp. sensor is bad. possibel the sensor has a short or an open circuit.

Re:Radiator overflow
 

but what does that suppose to do with water overflowing?

Re:Radiator overflow
 

It is your radiator cap. Mine was doing the exact same thing for a while and I went and bought a new cap. Stopped it instantly. $6 dollar fix.

Re:Radiator overflow
 

ive just got a brand new cap! a spoon sports 1.35bar one.

so i need to get the car to running tempreture and fill the radiator to the top? and what level do i fill the tank to?

when i start the car from cold i fill the radiator to the top and when i finish the journey i had a half empty radiator because all the water is going into the tank at the side which is nearly full!!! will all the water go back into the radiator when the engine cools down?

please help as i am worried about the car overheating if there is no water in the radiator.

This has only done this since i am boosted and never ever did it when i was N/a!

Matt

Re:Radiator overflow
 

It should suck the water back up. Keep an eye on the gauge. Your motor didn't run as hot as it does now that it's boosted so the fluid is getting hotter which is causing it to overflow. If it doesn't suck back up or if it actually overflows out of the overflow and drains the radiator, you have problems. Just keep and eye on the gauge.
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Re:Radiator overflow
 

It does overflow out of the radiator and fills the expansion tank and does not suck back up into the radiator!


Maybe i got a air blockage or something? gonna drain the system and put new coolant in at the weekend, will let you know how i go on.

Any other ideas?

Re:Radiator overflow
 

also i am getting a check engine light since i am boosted, how do i check the code? and where do i get the codes list from?

Re:Radiator overflow
 

http://hondata.com/techecucodes.html
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Re:Radiator overflow
 

what kind of car do you have? if it's obd o (pre 92), then you can just see how many times the light blinks, if it's obd1, there is a plug you have to bridge, but I forget which one... start a CEL thread.. or search....

Re:Radiator overflow
 

well i have the exact same probably you having man. Same motor and same car? So basically were in the same boat. . let me know what your finds so far... ;D