87 Fiero AC stays on (Page 1/3) svocal OCT 04, 02:19 PM Guys... I need your help on this one. As soon as i turn on the ignition, the AC turns on. Even in the off positions, it stays on. 1. How can I disable it temporarily? fuse breaker? which one is it? 2. Where should i check to find the root of the problem? olejoedad OCT 04, 03:08 PM I would suspect that the relay for the clutch is stuck in the ON position. The relay is located in the engine compartment, to the left of the driver side hinge box. There are two relays there, the one with the ORANGE wires id for the fuel pump, the other one is for the A/C clutch. Disconnect the plug to the relay and please report back. svocal OCT 04, 11:38 PM I disconnected the relay you suggested, but the AC still turns on. I even disconnected the other relay just for giggles. The same result. Any other suggestions? quote Originally posted by olejoedad: I would suspect that the relay for the clutch is stuck in the ON position. The relay is located in the engine compartment, to the left of the driver side hinge box. There are two relays there, the one with the ORANGE wires id for the fuel pump, the other one is for the A/C clutch. Disconnect the plug to the relay and please report back. msweldon OCT 05, 12:09 AM It may stay on but does it ever cycle on its own? Does the ac run when the clutch connector is pulled? svocal OCT 05, 12:31 AM Yes..As soon as i turn the ignition key, it just starts blowing air. Even after I disconnect the relay. [ QUOTE]Originally posted by msweldon: It may stay on but does it ever cycle on its own? Does the ac run when the clutch connector is pulled? [/QUOTE] Rexgirl OCT 05, 03:06 AM If you mean the cabin FAN runs all the time, that is normal. olejoedad OCT 05, 07:35 AM So it blows cold air all the time? Do you hear the compressor clutch engage and disengage? (Clicking sound and engine rpm pulls down and then recovers) svocal OCT 06, 07:58 PM Update.... After reconnecting and disconnecting the relays a few times.... The AC no longer blows cold air. However as soon as I turn the ignition key in the "on position" but with the engine off....i hear a motor sound(underneath the dash or in the front hood compartment) kick in. It stays on and i can feel air passing thru and under the dash. I check the front compartment and see that the radiator fan is on, but what else could be blowing the air? quote Originally posted by olejoedad: So it blows cold air all the time? Do you hear the compressor clutch engage and disengage? (Clicking sound and engine rpm pulls down and then recovers) Patrick OCT 06, 08:49 PM quote Originally posted by svocal: ...as soon as I turn the ignition key in the "on position" but with the engine off....i hear a motor sound(underneath the dash or in the front hood compartment) kick in. It stays on and i can feel air passing thru and under the dash. I check the front compartment and see that the radiator fan is on, but what else could be blowing the air? There's a blower of course for the heater and A/C... but as long as the OFF button has been pushed in all the way, there should be no fan blowing anywhere. (The rad fan should only turn on if the coolant temp has reached 235°F.) svocal OCT 06, 09:19 PM The OFF button is pushed in all the way. Motor still kicks in. How do I disconnect the blower motor? quote Originally posted by Patrick: There's a blower of course for the heater and A/C... but as long as the OFF button has been pushed in all the way, there should be no fan blowing anywhere. (The rad fan should only turn on if the coolant temp has reached 235°F.)