Radiator fans not running

Asked by Sep 15, 2016 at 10:04 PM about the 2005 Buick LeSabre

Question type: Maintenance & Repair

Yesterday, I changed my radiator fluid in my 2005 Buick Lasabre. I drove the
car about ten miles today, and noticed that the engine was getting a bit hotter
than normal. I've been monitoring the temperature all day. Tipically running
185-200, but later this afternoon, it spiked to 220ies.

So I let it cool down, and as I was sitting there, I realized that I put the wrong
coolant in it(greenish/yellow). So I ran to auto store and got some Dex-Cool.
Let it cool down again, drained and replaced coolant with the Dex-Cool.

Turned the engine on and poured more coolant into the radiator. I let it run for
5-10 mins and the engine started to get hot, but the fans never turned on and
the hoses to the radiator and engine block seemed empty of fluid.

I'm stuck. Help.

3 Answers

36,865

You should get it flushed, those two coolants are not compatible. Afterwards, if you were low then the coolant temperature sensor probably was left dry and couldn't function, it needs to be in contact with coolant not air, so the fan control never turned on fans. I'd get it up to a radiator shop and get it flushed and new coolant. They should be able to explain to you what else needs to be done. Also, if you do you're own coolant flush or change fluid you have to take your time to get all trapped air out of the system.

1 people found this helpful.

Took it to a repair guy. Thermostat was sticking. Thanks for the help, car gurus and Ken.

2,480

You may have unplugged a connector for the fans when you were changing the coolant.

Your Answer:

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 1,348 nationwide LeSabre listings and the tools to find you a great deal.

ZIP:

Buick LeSabre Experts

  • #1
    Tom Demyan
    Reputation
    2,540
  • #2
    John Saffrahn
    Reputation
    2,220
  • #3
    Austin Gaboda
    Reputation
    1,510
View All

Related Models For Sale

Used Buick LaCrosse
211 Great Deals out of 11,466 listings starting at $1,175
Used Buick Park Avenue
3 Great Deals out of 283 listings starting at $2,000
Used Buick Regal
88 Great Deals out of 3,659 listings starting at $1,995
Used Chevrolet Impala
513 Great Deals out of 25,945 listings starting at $995
Used Buick Century
530 listings starting at $1,995
Used Buick Lucerne
69 Great Deals out of 1,932 listings starting at $1,250
Used Honda Accord
682 Great Deals out of 101,645 listings starting at $999
Used Dodge Charger
327 Great Deals out of 31,991 listings starting at $1,500
Used Toyota Camry
858 Great Deals out of 70,625 listings starting at $1,300
Used Chevrolet Malibu
604 Great Deals out of 50,816 listings starting at $600
Used Cadillac DeVille
1,272 listings starting at $999
Used Mercury Grand Marquis
20 Great Deals out of 1,270 listings starting at $1,196
Used Ford Mustang
310 Great Deals out of 39,695 listings starting at $1,312
Used Chevrolet Monte Carlo
962 listings starting at $1,125

Used Cars For Sale

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.