I am a Police officer and i drive a Crown Vic. I just recently got my air conditioning fixed in my cruiser. Sometimes it blows air but no air comes out of the vents. Also, it doesn't seem to be blowing as much air as it should through the vents when it does blow air. Anyone have any idea of why this is happening? I got the compressor replaced and the A/C line.

10

Asked by Apr 23, 2017 at 02:26 PM about the 2007 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

2 Answers

10

Thanks! Like it blows air then occasionally it will stop blowing through the vents but i can hear the blower motor working. When the air does blow through the vents it just doesn't seem to be pushing as much as air it should out.

1 people found this helpful.
81,495

ATM is correct. This is called "mode shifting". Intake manifold vacuum, where the main vacuum hose for the system is connected, is strongest at idle. During acceleration the vacuum drops considerably. To prevent mode shift there's a check valve, usually inline on the vacuum hose coming from the engine through the firewall, to the heat/air conditioning control panel on the dash. There's also a vacuum reserve tank in the system as well. If the check valve is now missing or the vacuum hoses misrouted to bypass the vacuum tank this can happen. For safety reasons, the system will normally default to defrost when vacuum to the system is lost. HTH. -Jim

2 people found this helpful.

Your Answer:

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 19 nationwide Crown Victoria listings and the tools to find you a great deal.

Postal Code:

Ford Crown Victoria Experts

  • #1
    Tracy Hooks
    Reputation
    2,040
  • #2
    Bob Beaman
    Reputation
    940
  • #3
    tennisshoes
    Reputation
    870
View All

Related Models For Sale

Used Dodge Charger
38 Great Deals out of 923 listings starting at $2,939
Used Ford Taurus
17 Great Deals out of 362 listings starting at $3,900
Used Lincoln Town Car
9 listings starting at $6,495
Used Ford Mustang
35 Great Deals out of 1,236 listings starting at $3,995
Used Chevrolet Impala
21 Great Deals out of 868 listings starting at $2,894
Used Ford Explorer
22 Great Deals out of 1,756 listings starting at $2,700
Used Ford F-150
130 Great Deals out of 11,421 listings starting at $399
Used Chevrolet Tahoe
10 Great Deals out of 778 listings starting at $5,900
Used Honda Accord
39 Great Deals out of 1,646 listings starting at $2,495
Used Dodge Challenger
24 Great Deals out of 980 listings starting at $10,000
Used Chrysler 300
39 Great Deals out of 1,029 listings starting at $4,888

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.