what causes the heat to go out in a 2008 ford mustang. At first it was blowing warm to hot air now it just went out completely

Asked by Dec 23, 2013 at 02:17 PM about the 2008 Ford Mustang V6 Premium Convertible

Question type: Maintenance & Repair

1 Answer

7,365

Check to see if vacuum operator behind the dash control knobs is still working. When the car is hot, set the air flow direction to "dash/windshield", then turn the temperature to full cold (listen for the A'C compressor to turn on and the temperature to get cold coming from the dash vent). Once you have felt the cold, turn the temperature knob slowly to full heat and listen for the A/C pump to shut off, while listening for the vent "doors" in the dash board to open and close as they go from cold to hot orientation. You can also see if under hood vacuum valve for switching from cold to hot while operating correctly as well (look for the heater hose coming from the water pump headed towards the firewall). If everything operates and still no heat , then you need to change the vacuum operated temperature controller, located behind the dash board (it is connected to the knobs which control A/C-Heat, Air Direction (floor, dash, windshield) and Fan Speed).

1 of 1 people found this helpful.

Your Answer

Ford Mustang Experts

  • #1
    Tom Demyan
    Reputation
    4,710
  • #2
    Bob Beaman
    Reputation
    1,340
  • #3
    F_O_R
    Reputation
    1,170
View All

Related Models For Sale

Used Dodge Challenger
238 Great Deals out of 25,118 listings starting at $7,750
Used Dodge Charger
453 Great Deals out of 33,639 listings starting at $1,999
Used Chevrolet Corvette
166 Great Deals out of 17,456 listings starting at $3,000
Used Ford Shelby GT500
569 listings starting at $26,900
Used Ford F-150
3,273 Great Deals out of 221,674 listings starting at $1,200
Used BMW 3 Series
1,119 Great Deals out of 32,914 listings starting at $1,200
Used Chevrolet Silverado 1500
2,652 Great Deals out of 174,439 listings starting at $955
Used Nissan 370Z
72 Great Deals out of 2,788 listings starting at $8,495
Used Jeep Wrangler
491 Great Deals out of 19,399 listings starting at $2,500
Used Nissan GT-R
3 Great Deals out of 506 listings starting at $47,995
Used BMW M3
38 Great Deals out of 2,080 listings starting at $5,495
Used Subaru Impreza WRX STI
23 Great Deals out of 622 listings starting at $9,490

Used Cars For Sale

2014 Ford Mustang V6 Premium Convertible For Sale
10 Great Deals out of 207 listings starting at $9,500

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.