No ac

Asked by Apr 03, 2015 at 12:32 PM about the 2000 Ford F-150 XLT Extended Cab LB

Question type: Maintenance & Repair

No Ac, I get 12v @ the compressor when ac is commanded, freon full, thinking bad
compressor, any other ideas?

3 Answers

20,860

Make sure the voltage to the compressor switches on and off via the switch inside the vehicle. If you do, have someone turn on the a/c with the engine at idle. The clutch on the front of the compressor, inside the pulley which turns, should engage, or try to, there is normally a click. Does it click and engage or rattle then stop? A rattle to the clutch indicates the clutch has had it and can be replaced. If nothing happens there could be a problem with the electro magnet just behind the clutch which engages it. It could be a ground problem within the magnet or the magnet itself. The clutch and electromagnet can be replaced, usually, without removing the compressor if it is located in an easily accessible location. Determine what the problem is, clutch, magnet, or seized compressor then price out the parts vs a replacement compressor.

1 of 1 people found this helpful.

Thanks

the areal answer i this , if you don't know what is wrong the internet is going to confuse you much more . The way it was designed was the front unit is run in a daisy chain style hose configuration from factory for the front and rear units to use only one compressor. The front unit only will pump the refrigerant in the proper cycle . as soon as you engage the rear ac evap system there is a electro valve in the rear of the truck the open and now allows the refrigerant to also be pu,[ed from the front to the rear unit . They do this to take some extra strain off the compressor from pumping the extra refrigerant for years and wearing out the compressor . The rear Valve is a sticky monster and always has been . To replace it you will need to dump the system and change the valve after verifying it is receiving power and if it is opening but not cooling the truck could simply need a topping off , since the size of the system has more than doubled when you engage the second unit . There are a few different situations that can roll the non ac guy so sometimes its the best idea to find an honest ac person , use common sense and trust them . Go have a coffee while they work, no-one like the customer hovering over their shoulder asking questions . If we wanted to teach HVAC we would have went that direction and made the big money (hahaha). Ford systems have provided my family food on the table since 1985 , they work good for a while and always break , thanks Ford !! All the techs remember Black death ? What a retirement plan that was . Good luck and take internet info with a grain of salt .

Your Answer

F-150

Looking for a Used F-150 in your area?

CarGurus has 239,109 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,280
  • #2
    dandyoun
    Reputation
    4,630
  • #3
    tennisshoes
    Reputation
    3,260
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,706 Great Deals out of 196,455 listings starting at $699
Used GMC Sierra 1500
1,238 Great Deals out of 71,135 listings starting at $1,750
Used Ford F-250 Super Duty
389 Great Deals out of 53,720 listings starting at $1,899
Used Toyota Tundra
684 Great Deals out of 38,136 listings starting at $2,900
Used Dodge Ram 1500
414 Great Deals out of 11,104 listings starting at $1,499
Used Toyota Tacoma
731 Great Deals out of 50,701 listings starting at $1
Used Ford F-350 Super Duty
369 Great Deals out of 28,573 listings starting at $3,300
Used Ford Mustang
607 Great Deals out of 39,015 listings starting at $1,500
Used Ford F-250
425 listings starting at $2,995
Used Chevrolet Silverado 2500HD
347 Great Deals out of 33,007 listings starting at $2,499
Used Chevrolet Tahoe
857 Great Deals out of 44,892 listings starting at $1,980
Used Ford Explorer
1,180 Great Deals out of 76,956 listings starting at $2,100

Used Cars For Sale

2018 Ford F-150 For Sale
117,635 listings starting at $17,079
2017 Ford F-150 For Sale
219 Great Deals out of 42,533 listings starting at $17,990
2016 Ford F-150 For Sale
235 Great Deals out of 8,575 listings starting at $16,594
2015 Ford F-150 For Sale
497 Great Deals out of 12,998 listings starting at $11,990
2014 Ford F-150 For Sale
702 Great Deals out of 16,599 listings starting at $9,990

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.