I have a Chiltons and a Haynes manual. But the drawings in them say "typical system" and I guess my 99 Sable is not "typical".
I have the Duratec engine, and EATC
for the heat/ac. I don't think any other options apply to my question/problem.
I just spent over an hour reading many posts about other peoples problems with their cooling fans and none of them seem to fit my problem and it seems others have a different setup than I do.
Here's my problem, the fans do not turn on when I turn on my AC
on in auto or Max, it doesn't matter. The fans will not turn on. Then, I guess the engine temp gets to it's setpoint and the fans kick on.
I am trying to recharge my AC
system and the high and low pressures fluctuate a GREAT deal based on the fans running or not. The high side will get to about 350 psi
, the fans kick on and then pressure drops (quickly) to about 150, then the fans turn off and pressure builds back up.
I have a fuse/relay box under the hood. The owners manual refers to it as the "power distribution box". It has large "maxi fuses", the small "mini fuses" and 2 types of relays along with a couple diodes.
The owner's manual says the relay in position 31 is the Low speed Cooling Fan Relay. None of them are labled as a High Speed Relay or anything else dealing with the cooling fans at all.
That relay is the same part number as the starter relay (position 24). I swapped the two. The car still starts and the fans still don't come on when the AC
is turned on. The associated 40 amp fuse is good, also.
When the Fans kicked on one time, I pulled that relay just to see what would happen. Well, they continued to run. So, that tells me there is another relay making the fans come on.
Most of the posts talk about a CCR that is near the battery and sometimes is at fault. From what I saw, the CCR does not have the plug and play type relays that mine does. So, (fortunately or unfortunately) I have 6 individual relays that can just be unplugged to replace and not the one complete module that costs a fortune from the dealer.
I am at a loss. If someone has access to the Factory manuals and schematics, I would appreciate some info from them.