A/C not working

RIOTKILL

RIOTKILL

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Bought a 2000 LS V6 manual on Saturday, and the guy mentioned that the A/C was messed up.

When I turn it on, it blows hot air out all vents.
Replaced the 10A fuse (it was blown), that didn't fix the issue either.

Any idea what else it could be? Maybe the module is shot?
 
There are a whole lots of threads on here about this. The blown fuse is a hint that your DCCV is probably at least part of your problem.
 
You can bypass the dccv apparently. A member of the facebook LS group posted a video of her bypassing their failed dccv and having cold air coming through the vents. I can not prove that it works until I try it myself. I have a brand new unit to replace the failed one, but I will be testing this method out before I put the new on in, I will be posting the result's here.
 
It's not so much a bypass, as it is plugging off two of the lines. We had a new member on here a few years ago with a used LS that would not heat. Eventually, it was figured out that the reason was that the previous owner had put wooden plugs in the heater hoses, instead of replacing a faulty DCCV.
 
Two long nose clamping locking pliers wrapped in electrical tape, can pinch and stop hot coolant going into the interior heater core. Temporary available option to restore some cooling. Pinch both lines going in at firewall. Not recommended but simple math tells us it's the same as the DCCV closing out the flow to the interior.
 
Thanks for the help everyone.

And yea, I'm pretty confident it's the DCCV now...replacement fuse was blown when I checked it this morning, and probably has been since I tried turning the Ac on after replacing it.

Thankfully the weather here near Philly is cooling off for now, so it's not as pressing a repair as it was...windows down, sunroof open will have to do for now.
 
If you're brave, remove the DCCV and disassemble it. You will find coolant in the assembly from a cheap Chinese o-ring seal that is shorting out the coils and blowing your fuse. Same thing happened with my nephews 04 LS 3.9, and apparently just about every thing Ford put a Dual coolant control valve on. Due diligence on the electrical plug at the DCCV as well, might be that.
 
RIOTKILL said:
... Philly is cooling off for now, so it's not as pressing a repair as it was...windows down, sunroof open will have to do for now.
Click to expand...


Allow me to use bigger fonts,
Two long nose clamping locking pliers wrapped in electrical tape, can pinch and stop hot coolant going into the interior heater core. Temporary available option to restore some cooling. Pinch both lines going in at firewall.


Seriously Bud, just pinch off the hot coolant going to the inside, until you can get to that DCCV swap.


.
 
OK, will try it.
The car isn't a daily yet however, and probably won't be till late September at the soonest.

Thanks again.
 
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