- Joined
- Aug 7, 2007
- Messages
- 1,735
- Reaction score
- 538
- Points
- 113
- Location
- Costa Mesa, CA
- Vehicle Year
- 2002
- Make / Model
- Ford
- Engine Type
- 4.0 V6
- Engine Size
- 4.0 SOHC
- Transmission
- Manual
- 2WD / 4WD
- 4WD
- Tire Size
- 33"
Recently, I have noticed that when I turn on my AC when idling, the idle will drop to around 500 rpm and the AC will kick out and the idle will go back up to normal. After a short time the AC will kick back in and go through the same cycle.
If I increase the rpm to a little over 1000 rpm the AC will kick in and stay on. If I then take my foot off the accelerator pedal the engine will almost die and the AC kicks out again. If I very slowly let up on the accelerator pedal the idle will take over at the normal rpm and AC works as it should. When I am driving stop and go the AC works as it should. It is just an issue when turning on the AC at idle.
I know the Idle Air Controller controls the idle and usually is quick to adjust the idle when the AC is turned on. It seems to be slow to respond now. I never had this problem before. Is it possible the IAC is sticking and could be the cause of this slow response? Is there something else that could cause this issue? I guess I could try cleaning the IAC to see if it helps.
If I increase the rpm to a little over 1000 rpm the AC will kick in and stay on. If I then take my foot off the accelerator pedal the engine will almost die and the AC kicks out again. If I very slowly let up on the accelerator pedal the idle will take over at the normal rpm and AC works as it should. When I am driving stop and go the AC works as it should. It is just an issue when turning on the AC at idle.
I know the Idle Air Controller controls the idle and usually is quick to adjust the idle when the AC is turned on. It seems to be slow to respond now. I never had this problem before. Is it possible the IAC is sticking and could be the cause of this slow response? Is there something else that could cause this issue? I guess I could try cleaning the IAC to see if it helps.