Low Coolant light keeps flashing but radiator and reservoir are full

Asked by Oct 04, 2014 at 03:27 AM about the 2001 Buick Century

Question type: Maintenance & Repair

Repair shop flushed dexcool out then 7 months later the low coolant light flashes. I have
to keep the fans running all the time or it overheats. The radiator was flushed again same
results.The radiator is full as is the reservoir.

2 Answers

115

Try a new cap if you haven't if it doesn't hold pressure it will run hot . also look for a bleeder valve near thermostat or on a pipe near valve cover and bleed all the air out of the lines . some have two valves look close .

30

If it is a recent model car it should be filled under vacuum otherwise air in system affects the sensor and it thinks the system is empty. Most recent GM vehicles are filled under vacuum now, I presume other makes are similar.

Your Answer

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    970
  • #2
    Tom Demyan
    Reputation
    800
  • #3
    John Pate
    Reputation
    560
View All

Related Models For Sale

Used Buick LeSabre
18 Great Deals out of 1,771 listings starting at $1,000
Used Buick Regal
172 Great Deals out of 8,822 listings starting at $4,800
Used Chevrolet Impala
541 Great Deals out of 35,254 listings starting at $900
Used Honda Accord
1,011 Great Deals out of 60,152 listings starting at $1,099
Used Toyota Camry
932 Great Deals out of 82,509 listings starting at $999
Used Chevrolet Malibu
977 Great Deals out of 65,600 listings starting at $1,000
Used Buick Park Avenue
3 Great Deals out of 397 listings starting at $1,295
Used Ford Focus
806 Great Deals out of 55,788 listings starting at $800
Used Honda Civic
784 Great Deals out of 70,025 listings starting at $1,500
Used Cadillac DeVille
1,548 listings starting at $2,995
Used Chevrolet Camaro
444 Great Deals out of 30,829 listings starting at $1,450

Used Cars For Sale

2004 Buick Century For Sale
63 listings starting at $1,600

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.