Radiator Overflow Boiling
#1
Radiator Overflow Boiling
I have an 89 Camaro Z28 I-ROCZ and my radiator overflow tank was boiling after driving about 10 miles of normal speed driving (following speed limit). The radiator cap is holding the correct amount of pressure and there should be enough coolant in there, yet not too much. What is causing the extra heat?
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Join Date: Mar 2000
Location: Queensland AUSTRALIA
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Car: 89 IROCZ vert
Engine: 305TPI
Transmission: T5
Re: Radiator Overflow Boiling
Check the basics first.
1st thing I'd do is clear the air out of your system by running the car with raidator cap off.
Check that your hoses aren't collapsed
Check thermostat opens is your top hose hot?
Check primary fan is running when car is up to temp
Replace your radiator cap (how do you know it is ok?)
Has the raidator fluid been changed recently, with the correct mix?
If all that is ok, it may be a more serious problem.
1st thing I'd do is clear the air out of your system by running the car with raidator cap off.
Check that your hoses aren't collapsed
Check thermostat opens is your top hose hot?
Check primary fan is running when car is up to temp
Replace your radiator cap (how do you know it is ok?)
Has the raidator fluid been changed recently, with the correct mix?
If all that is ok, it may be a more serious problem.
#5
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Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: Radiator Overflow Boiling
8 times out of 10, bubbling (or boiling, since the cap not holding pressure relieved into the overflow is associated with boiling) is usually the result of a old, shitty radiator cap.
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