I recently changed out the hgasket do to leaking. At what temp should the fan kick on? About what on the gauge? after being parked for abit with the car on the tmep will go to between the a and l and still not kick on. Also once the car is shut off i can hear a boiling sound coming from the from of the engine, which i think is coolant.
shouldn't the fan come on if i turn on the a/c
the low speed fan should turn on at 212 degrees F and th efan should be on all the time whe the A/C is turned on
damn mine isn't turning on with the a/c. But also my a/c isn't working. I don't know if something isn't connected or just not working since I haven't used it in like a year.
Until you get the A/C and fan issue sorted out, you may want to try the
moderndino fix as a temporary measure.
sounds a little too ghetto, but i guess it would work
i know the gauges arnt too accurate, but about where is 212 on it
You can find some help in this topic.
Fan test topicTo locate the fan relays, check the owner's manual, they are in the fuse box next to the battery. Have you changed the waterpump (not easy)? If the heater is hot, it is probably OK. Good luck with fixing it!
"Probably, the low speed circuit has failed. Remove the 2 relays, key off. If you jump 3-5 on the green relay's socket,the fan should run low speed. Then jump 3-5 on the black high speed relay's socket the fan should run high. If the 2 speeds work, with strong airflow then the fan circuit/resistor is OK. (You could pull the ECT sensor plug, see if the fan comes on and stays on. That will set the CEL light.) The Pin 7 of low speed relay goes to PCM (Powertrain Control Module) which triggers the relay, and could be a wiring problem there. The a/c should trigger the fan after a short delay. Fan first, compressor next is how mine (V6) works. If the fan does not work, the a/c will overpressure shortly, turn a/c off asap. Here is a V6 schematic, the Zetec is the same, 1 fan motor instead."
Okay i may be dumb but exactly how would i jump 3-5 on the relay, just with a piece of wire?
Yes, after pulling the relay, with the car off. It has been a while since I did that, I can't remember if the pin numbers are on the relay or the socket. I can look, tomorrow early afternoon, (at work now).
not many volts going through there right? doesnt really matter what kind of wire?
Just use a thick wire, bent to U shape. A piece of thick speaker wire is OK. There is a good amount of current (amperage) but only 12 volts. Do you need me to check on pin numbers?
okay update...i tested the two low and high speed and they are working.
okay another quick question, when turning on the a/c i don't get any cold, i really don't feel like dealing looking into that at the moment could be low or whatever, but since I'm not getting cold does that mean the a/c really isn't on therefor the fan wouldn't kick on because im just wondering why the fan won't come on with the a/c on? if that makes any sense.
is there anyway i can test the relays?
Yes, if you pull one out, you can attach a 9v or the car battery to the coil pins and click it on, and measure the resistance across the contact pins, should be close to 0 ohms. I am fairly sure the fan will come on with the a/c on even if the R134 is gone. The compressor will cycle fast on/off. There could be a wiring problem under the relay box.
does anyone know if it should come on for sure?? thanks for the help so far though
