In my 08 Expedition I notice the a/c compressor cycles on for 18-25 sec. then off for about the same. This is with an ambient temp of about 75f. A/C seems to be blowing cool air-never was really cold since new. The idle drops/surges a bit when the a/c kicks on also-which is what grabbed my attention. Is this a normal or is it short cycling?
View 1 RepliesWhen ever the car stops at a traffic light or stop sign, the air compressor cycles rapidly and the cool air turns warm. I was told the cooling fan was not coming on, but the other day the fan was cycling and the cool air stayed cool. My question is what controls the cooling fan operation? It seems the high pressure switch is working correctly and the fan motor is working. As long as I'm driving the air is cool.
View 2 RepliesJust rescued this 2004 from a driveway death. While checking out a no A/C condition I notice that the A/C compressor cycles on for about 10-15 seconds then stops, does this 4 times and then ends. System shows low pressure but doesn't run long enough to build up any. Need to get the OBD-2 tester on it.
View 1 RepliesI just picked up a 97 F350 with a 460. When the air is turned on, the compressor cycles on and off. It only stays on for two, maybe three seconds, then is off for about fifteen seconds. I have one of those of those hokey gauges on the refill can, and it says the pressure jumps when the compressor comes on. Could it be going out on a hi head pressure kinda thing? Could the orifice be clogged? I'll have the freon pulled out, then can get into it....
View 5 Replies2000 Explorer Sport with 4.0L SOHC engine. When I turn on the A/C the clutch on the compressor cycles off and on every 10-15 seconds. The A/C cools and the gas charge is checked as OK. Is this normal?
View 1 RepliesI have a 99 f350 7.3 diesel. The AC clutch cycles on for 3-4 turns and then off for 45 sec. It the does it again. The low side starts to cool down and then the clutch quits. as the truck warms up the clutch quits completely. it will restart for a few times if I push in on the elec conn on the ac clutch. My Ac has quit cooling and summer is almost here.
View 1 RepliesThe ac compressor on my 2003 vue cycles rather quickly after operating for several minutes. The ac blows cold inside and stays cold. When I first turn on the ac, the ac compressor stays running while the vue cools down but after several minutes of operating the ac compressor begins to cycle a few seconds on and a few seconds off. Seems to me it is cycle too frequently?
View 30 RepliesThe AC compressor on my 97 Quest cycles off and on way too fast when my defroster's on. I know the AC is supposed to dehumidify the incoming air - but it shouldn't be this rapid. Is there a way to control this or shut off the AC when the defroster's on ? 97 Nissan Quest..
View 2 RepliesI have a 1999 F250SD with V10 and the compressor recycles about every 4 to 5 seconds and doesn't cool very much. I checked the 134a level and according to my gauge it has sufficient level. What could be my problem.
View 4 RepliesLooking to get the A/C working on my '78 F150 with integral (factory) A/C system. It is complete, but it seems to be blowing warm air as opposed to cold.
When I turn on the A/C, the compressor engages and the blower switches to the dashboard vents. I waited for a minute or two, but no cool air.
The sight glass has a silver line running through it. I assumed this was full? It would be black if it was low/empty.
2004 Foed Freestar, the A/C has started blowing less than cool air in the past sveveral days. I'm assuming its low on refrg. but how does one check by visual inspection? If it is low will a simple re-charge kit w/guage and super dupper leak sealant do the trick? I saw a kit at Advance Autoparts for manufactured by Interdynamics. It had a guage w/trigger release for can content and three 12oz. cans of R134a. Will this kind of kit work?
View 6 RepliesI have a 2004 Honda Element and when the AC compressor cycles on it makes a high pitched noise similar to a drive belt slipping. The AC is still cold and the noise is not overwhelming (yet). I know this vehicle has a serpentine belt and that doesn't appear to be making any noise. The only noise is when the compressor is running.
Is there a belt that drives the compressor (other than the serpentine)? And, is this something that I should get fixed ASAP or can it wait until my next oil change? Meaning, if I wait until the oil change (under 1,800 miles) will hurt anything?
As the season has started to warm, I noticed when I have my air temp set to 60 and only using the vent and have not selected AC I have hot air coming out of my vents. After doing some research it appears that I may have a bad Air blend actuator, bad air door or something else. I took my truck to the dealer to get my fuel filter changed and asked if they could diagnose the hot air issue. Not being a mechanic I told the service mechanic the problem and he says the AC compressor always kicks in on fords even if the AC is not selected and maybe I have a leak and he seemed to think it more than likely was not the air blend actuator or blend door.
I told him I had no idea that the AC compressor always kicks in even with it not selected. I knew it kicked in for AC and for defrots but didn't think it did for anything else. He said since the 90's all fords did. Well I get a call that after diagnosing the system, they believe the freon is low. I just have my doubts and wonder now if I should've just tried to take the air door actuator off and test along with sticking something in the air blend door whole and verifying it was moving.
I was hoping someone that knows more than me can verify if the AC compressor kicks in even when it is not selected when I have the temp selector set to low 60 degrees. Does it make sense that I would have hot air blowing out of the vents with the temp set on low even when it is cool outside. All of my temp controls work moving from defrost, vent to heat as I can feel blowing out of the different zones.
AC works, but only drops temp by 15 degrees. Pressures 40/150 after adding some 134a.
Compressor runs continuously at idle. (I don't know if this is correct or not.)
Not sure what the issue is.
I took my truck to a friends express lube to have some freon added to it. My truck has been blowing cool air, not cold. So i thought it might be low on freon considering its a 2000 f-150 w/ 145,000 miles. He took a pressure gauge to it and said it is over charged, the pressure was high.
View 13 RepliesWe are having an issue with the front air not blowing cool all the time. Sometimes if we hit a bump or something its like something is jogged and it blows colder but the rear air always blows cold. Also the front air blows colder with the rear air on. I put gauges on it and I have the right amount of refrigerant in it. What I can do.
View 10 RepliesThe A/C is not working in my 2002 S-10. Currently the compressor runs, but the air is not getting cool. I tried adding freon, but it has not worked. The low side pressure is about 50 psi, and would drop a few pounds when the compressor is started, but it drops no further. I have not noticed the compressor cycling while it is on. The can of refrigerant is not empty, but the system does not seem to be taking any more from that can.
Do I just need to add some more coolant from a fresh can, or is something else at work here. Also, probably unrelated, when down shifting it is fairly common for the air to switch from blowing up front to blowing on the defrost.
I'm trying to bring fresh air at ambient temperature into the cab, but even on Econ and Lo, incoming air is a good 20 degrees F warmer than outside, even after 20 minutes or so giving the system time to cool off. The dealer says this is normal. Is there no way to get cool outside air in through the ventilation system without turning on the compressor?
View 15 RepliesI have a 97 expedition that i am having trouble with. It has front and back airconditioner. The compressor is short cycling real fast. Warm air in the front and cool air in the back. I put a can of freon in but still not cooling. The gauges are between 30 psi and 50 on the low side. The high side is between 100 and 150 psi. The ambient temp was 80 degrees.....
View 1 Replies03 F350 7.3PSD... A/C blows cool on max only but does not blow real hard on high.
Blower motor is loud like it is blowing but just not coming out of vents. On reg A/C blows hot, actually blows hot on all other settings.
A/C compressor is on but blows hot through vents. I am thinking blend door and or something else. Thing is I am not sure what or where to look and how do I check?
I have a 1998 f150 4.6 that has a problem with the heating system. It's blowing out a little warm, but "far" from what it should be. ( on a scale from 1-10, I'd rate it about a 3) I am puzzled because I flushed the radiator, changed the thermostat, and there a no signs of heater core leaks inside,hose leaks on firewall, or radiator/water smell present. I don't know if this has anything to do with it, but I did notice the top radiator hose was hot, but not the bottom. I don't know what else to look for.
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