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

16,540

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 out of 1 people think this is 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

Add photo

Related Questions

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,656 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,880
#2 dandyoun
dandyoun
Reputation 4,180
#3 tennisshoes
tennisshoes
Reputation 2,510
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,301 Great Deals out of 156,238 listings starting at $1,395
Used GMC Sierra 1500
928 Great Deals out of 62,271 listings starting at $1,395
Used Dodge Ram 1500
535 Great Deals out of 12,998 listings starting at $2,199
Used Ford F-250 Super Duty
427 Great Deals out of 45,049 listings starting at $2,000
Used Toyota Tundra
621 Great Deals out of 30,696 listings starting at $2,637
Used Toyota Tacoma
627 Great Deals out of 35,082 listings starting at $2,155
Used Ford Mustang
396 Great Deals out of 44,403 listings starting at $1,000
Used Ford F-250
520 listings starting at $3,500
Used Ford Explorer
1,004 Great Deals out of 73,800 listings starting at $750
Used Chevrolet Tahoe
803 Great Deals out of 28,674 listings starting at $1,500
Used Ford Ranger
209 Great Deals out of 6,719 listings starting at $1,450
Used Jeep Wrangler
442 Great Deals out of 19,188 listings starting at $2,994

Used Cars For Sale

2017 Ford F-150 For Sale
3 Great Deals out of 100,942 listings starting at $18,940
2016 Ford F-150 For Sale
197 Great Deals out of 43,534 listings starting at $16,995
2015 Ford F-150 For Sale
199 Great Deals out of 7,337 listings starting at $17,480
2014 Ford F-150 For Sale
461 Great Deals out of 11,869 listings starting at $10,700