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2005 Buick LeSabre Custom 4dr Sedan

2005 Buick LeSabre
Trim Info:
Front Wheel Drive, 4 Dr Sedan Custom, Large Car
20 mpg city / 29 mpg hwy
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December 10, 2013, 2:40 pm

Louis I

Question: Coolant loss.

My 2005 Buick LeSabre is losing coolant. There is no visible leak, there is none on the ground where I park and yet I'm using more than one quart per week. The engine oil is clear. Any idea where it's going?

December 16, 2013, 6:13 pm

Ron W
Expert Mechanic

To find the leak you’ll need to perform a coolant system pressure test. You need a special pressure tester that fits on your coolant cap to do this test. Even a small leak usually will show very quickly. Most shops have one and shouldn’t charge very much to do it for you.

As a side note, NEVER open the cooling system when it's hot, as hot coolant can cause severe burns.

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December 19, 2013, 6:21 pm

Louis I

They did pressure test it but did not find any leaks.
Thank you.

0/0 users found this helpful.

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