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The engine probably has a bad head gasket or a cracked head.

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Q: What does it mean when radiator overflow is bubbling?
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Related questions

How do you fix a cracked radiator reservoir?

If you mean the plastic overflow tank, replace it. If you mean the plastic tanks on either side of the radiator core, replace the radiator.


What does it mean when the overflow tank is bubbling when you start the car?

Might mean you have internal engine damage like a blown head gasket. You need to get this professionally checked.


Coolant fluid bubbling in overflow tank?

thermostat or blown head gasket....


Why radiator overflow bottle melted?

Bad radiator fluid.


How do you ck the water level of radiator of jeep liberty when the radiator cap is on the overflow bottle on the firewall?

Filling the overflow to the correct level will suffice as the radiator will draw out what it needs.


Where is the radiator cap on a 1997 Cavalier not referring to the overflow reservoir cap?

the overflow res. cap is the radiator cap on the 97 cavalier


What is the hose that goes from the overflow to the bottom of the rad on a 2002 windstar?

The hose that goes from the overflow to the bottom of the radiator on a 2002 Windstar is the bypass hose. It allows coolant from the overflow to return to the radiator as it cools.


Does it damage radiator to have to much antifreeze in overflow?

No


Why is there no coolant in the overflow bottle but in the radiator?

no antifreese


Should your radiator overflow have coolant in it?

yes


Did the 1965 impala have a radiator overflow tank?

No.


How do you add coolant to Honda Accord?

Coolant is added to the overflow bottle instead of the radiator. The overflow bottle will allow fluid to fill over into the radiator.