How do I know if it is the AC compressor or fan causing AC/Heater to intermittently stop working?

Asked by May 20, 2015 at 10:38 PM about the 2003 Buick Century Sedan FWD

Question type: Shopping & Pricing

The air conditioner/heater of my 2003 Buick Century (156,000 miles) periodically stops
working for no obvious reason and can begin working again, also without any obvious
cause. I took the car to my local Firestone and was told it is the ac compressor and the
charge for fixing it is $1100. I don't think my car is even worth that much. Also, would
the compressor affect the heater too? My husband thinks it is a problem with the fan,
possibly a short. What do you think?

3 Answers

25

I recommend calling 3 garages for estimates near you to hear what each says. Because its going off when heating , thats not the cool air conditioning system. Possible loose wire under dash or fan wearing or something hitting its blades. Call another firestone?

72,045

Or faulty pressure switch,or relay.

75,685

If the fan is coming on and off it's going to be the blower motor, resistor block for the blower motor (a GM trouble spot), the blower motor relay, or the blower motor speed switch on the dash. I'd suspect the resistor block, or fan switch. In that order. HTH. -Jim

Your Answer

Century

Looking for a Used Century in your area?

CarGurus has 700 nationwide Century listings starting at $2,500.

ZIP:
Get More Money for Your Car
Be seen by 20 million shoppers. Create Your Free Listing

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    1,030
  • #2
    Tom Demyan
    Reputation
    870
  • #3
    John Pate
    Reputation
    630
View All

Related Models For Sale

Used Buick Regal
137 Great Deals out of 5,215 listings starting at $2,495
Used Buick LeSabre
5 Great Deals out of 1,490 listings starting at $1,299
Used Chevrolet Impala
506 Great Deals out of 32,201 listings starting at $1,000
Used Buick Park Avenue
352 listings
Used Chevrolet Malibu
1,006 Great Deals out of 53,953 listings starting at $1,599
Used Toyota Camry
1,093 Great Deals out of 76,390 listings starting at $1,100
Used Honda Accord
795 Great Deals out of 88,963 listings starting at $1,444
Used Cadillac DeVille
1,414 listings starting at $1,899
Used Chevrolet Monte Carlo
5 Great Deals out of 1,187 listings starting at $1,125
Used Ford Taurus
181 Great Deals out of 16,161 listings starting at $1,900

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.