My 2003 LeSabre over heated

Asked by Jan 16, 2015 at 11:53 PM about the 2003 Buick LeSabre Limited

Question type: Maintenance & Repair

My 2003 LeSabre over heated Friday, I had it towed to my mechanic and he replaced
a plastic connector for the cooling system, he replaced it with a metal one. He was
concerned about the color of the coolant=Brown and very mucky. He changed
thermostat and told me to come back in a week to check coolant color. He was
worried that the transmission cooler he said was inside the radiator was leaking. I
didn't get 3 miles away from his shop when the car was overheating so I returned.
When we popped the hood the engine was very hot. The coolant over flow reservoir
was boiling coolant in it and it was brown again.
I left it there for the weekend as they were getting ready to close. I showed up Monday
morning and he did a test by putting a clear cylinder with blue liquid in it where the
radiator cap goes and said we will start the engine and if it stays blue were good if it
changes color were screwed. It changed color. He said it meant that exhaust was
getting into the coolant. It’s probably head gaskets.
His take on it is that the transmission cooler inside the radiator leaked and the higher
pressure transmission fluid caused the overheating and the plastic coupling to brake
and ultimately to cause the head gaskets to give way.
He doesn't recommend I repair it. He recommended that I just sell the care to
someone who does this kind of work. And I have also been told by some others that
replacing the motor and radiator is a better way to go.

1 Answer

92,695

He maybe right about the pressures but not about the tranny fluid causing it, when a head gasket blows compression leaks into the cooling system, that is where the pressure comes from, I have seen pressures so high with the engine running that it fractured heater cores, broke radiators, cracked plastic fittings. So judging from what you have said you might be better off unloading the car, unless you are really in love with it. To do this job right is going to be rather expensive.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,080
#2 John Saffrahn
John Saffrahn
Reputation 1,760
#3 Austin Gaboda
Austin Gaboda
Reputation 1,410
View All

Related Models For Sale

Used Buick Park Avenue
440 listings starting at $4,991
Used Chevrolet Impala
521 Great Deals out of 31,726 listings starting at $1,450
Used Buick Century
825 listings starting at $1,800
Used Buick Regal
116 Great Deals out of 10,863 listings starting at $3,995
Used Honda Accord
812 Great Deals out of 84,287 listings starting at $1,050
Used Toyota Camry
1,002 Great Deals out of 90,919 listings starting at $650
Used Cadillac DeVille
7 Great Deals out of 1,640 listings starting at $1,999
Used Ford Taurus
249 Great Deals out of 20,434 listings starting at $699
Used Mercury Grand Marquis
31 Great Deals out of 1,804 listings starting at $2,250
Used Chevrolet Malibu
950 Great Deals out of 79,668 listings starting at $1,500

Used Cars For Sale

2005 Buick LeSabre Limited For Sale
84 listings starting at $2,495
2004 Buick LeSabre Limited For Sale
4 Great Deals out of 91 listings starting at $1,588

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.