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Old 04 Oct 2010, 12:45 pm
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Default Coolant Boiling Over

Hello
Has anyone had coolant boiling over in the reservoir tank

I have a 06 Pt Cruiser Non Turbo. It started boiling coolant after I turn the car off. I replaced radiator cap and T-stat, and the boiling decresed, but It still do it after a drive of 20 minutes. I flush the old coolant and replaced with new one, bleed through the valve below the t-stat but it still do it.

Any ideas?

Thanks
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Old 04 Oct 2010, 02:07 pm
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Default Re: Coolant Boiling Over

Can the type of coolant be the problem?

The car had Prestone 50/50 (green one) for 6 months and everything worked OK.
Now I put Chevron Dex-Cool (orange one) , is this OK?

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Old 04 Oct 2010, 03:34 pm
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Default Re: Coolant Boiling Over

Dex Cool will clog the radiator and engine passages.
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Old 05 Oct 2010, 08:36 am
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Default Re: Coolant Boiling Over

There is a Xerex antifreeze that is okay (Napa has it and will look up the right #).
Check that the engine fan comes on - start car and turn on A/C - fan should come on.
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Old 05 Oct 2010, 09:33 am
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Default Re: Coolant Boiling Over

If like me you have trouble finding it than you can order from these guys with free shipping

Approved Vendor ZXGO5RU1 Antifreeze/Coolant
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Old 06 Oct 2010, 07:48 pm
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Default Re: Coolant Boiling Over

Is there anyway to clean the system??
How do I know if its clog?

When I changed the t-stat, i ran water trought the upper side of the radiator, and it came out from the t-stat hole in the engine?

Thanks
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Old 10 Oct 2010, 10:15 pm
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Default Re: Coolant Boiling Over

Quote:
Originally Posted by jorgesag View Post
Is there anyway to clean the system??
How do I know if its clog?

When I changed the t-stat, i ran water trought the upper side of the radiator, and it came out from the t-stat hole in the engine?

Thanks
If the Dex-cool or the Green stuff were in the system for any length of time, the radiator is clogged and that is probably causing your problem. (The green stuff -may- be less cloggy.) It does not take long for the wrong coolant to ruin a radiator. If you bought the car used, you should assume that it had the wrong stuff in it.
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