My car 03 Buick Lesabre is overheating

Asked by Nov 12, 2016 at 12:55 AM about the 2003 Buick LeSabre Limited

Question type: Maintenance & Repair

Hey guys I recently had a new radiator put in
along with a new thermostat and my car is
still overheating,  my temp Gage moves
back and forth til tonight and got all the way
to the red where the light came on and my
heater is blowing cold air (was working fine
before my repairs)  it cooled off enough for
me to make it home but as I was pulling in it
made it's way back to the red and I noticed
smoke from under my Hood, I have no clue
what could be wrong now

2 Answers

1,120

Are you sure it is overheating or is the temp sensor bad. A bad sensor will tell the ECM the engine is hot and the ECM will retard the timing and richen the mixture along with other thing like turning on the warning light....make sure it is actually overheating

1 of 1 people found this helpful.
66,115

Sounds like you have air in the cooling system. There's a bleeder screw on top of the thermostat housing that must be opened up while filling the radiator. It's also helpful, if possible, to fill the cooling system with the front of the car on an upward angle. Like halfway in the driveway for example. HTH. -Jim

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • My 2000 Buick LeSabre is running hot, no smoke from overheating, but felt as iff it was going to break down when I was parking. 2 answers

    my 2000 Buick LeSabre has been running hot for about 6 days now, never in the red. Friday it went to the red, but did not overheat. My husband replaced the thermostat, but that is not the problem....

    2000 Buick LeSabre Limited

    -

    Maintenance & Repair

  • My 2003 LeSabre over heated 1 answer

    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...

    2003 Buick LeSabre Limited

    -

    Maintenance & Repair

  • 2001 buick LeSabre Limited blower resistor 1 answer

    I have a lot of hours on the net and in this car and I'm losing it. I cannot see where the blower resistor is or how to remove it. Every figure I find does not match what I have and the directions var...

    2001 Buick LeSabre Limited

    -

    Maintenance & Repair

  • 1995 LeSabre Custom Engine Coolant Leak 5 answers

    Engine coolant resevoir is going empty every couple of days. Opened the radiator and found oil; there was no coolant when I opened the oil cap however. Car is not overheating, misfiring, or blowing ...

    1995 Buick LeSabre

    -

    Maintenance & Repair

  • Overheating 2 answers

    Sister has a 02 Buick century its overheating but the radiator cap doesn't get hot... Replaced the thermostat last yr I believe. There's cooliant in the overflow an all that good stuff. Jus don't k...

    2002 Buick Century

    -

    Maintenance & Repair

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,090
#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
114 Great Deals out of 10,863 listings starting at $3,995
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Toyota Camry
1,001 Great Deals out of 90,918 listings starting at $650
Used Cadillac DeVille
7 Great Deals out of 1,640 listings starting at $1,999
Used Ford Taurus
248 Great Deals out of 20,434 listings starting at $699
Used Chevrolet Malibu
948 Great Deals out of 79,656 listings starting at $1,500
Used Mercury Grand Marquis
31 Great Deals out of 1,804 listings starting at $2,250
Used Chevrolet Monte Carlo
21 Great Deals out of 1,408 listings starting at $1,995
Used Ford Crown Victoria
12 Great Deals out of 1,069 listings starting at $2,995

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.