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?

70,305

Or faulty pressure switch,or relay.

72,515

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 733 nationwide Century listings starting at $2,395.

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

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    1,000
  • #2
    Tom Demyan
    Reputation
    830
  • #3
    John Pate
    Reputation
    580
View All

Related Models For Sale

Used Buick LeSabre
5 Great Deals out of 1,670 listings starting at $899
Used Buick Regal
161 Great Deals out of 7,454 listings starting at $3,995
Used Chevrolet Impala
578 Great Deals out of 34,503 listings starting at $1,100
Used Buick Park Avenue
372 listings starting at $1,495
Used Chevrolet Malibu
1,128 Great Deals out of 62,899 listings starting at $880
Used Toyota Camry
1,129 Great Deals out of 87,385 listings starting at $995
Used Honda Accord
1,118 Great Deals out of 74,858 listings starting at $1,100
Used Toyota Corolla
1,006 Great Deals out of 67,328 listings starting at $1,699
Used Honda Civic
843 Great Deals out of 61,317 listings starting at $950
Used Chevrolet Monte Carlo
13 Great Deals out of 1,241 listings starting at $999
Used Ford Taurus
243 Great Deals out of 15,310 listings starting at $1,800
Used Ford F-150
3,301 Great Deals out of 224,490 listings starting at $1,200
Used Pontiac Bonneville
473 listings starting at $2,995

Used Cars For Sale

2004 Buick Century Sedan FWD For Sale
16 listings starting at $2,395

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.