Ford A/C :: Air Cold For 3 Hours Then Warm
Jun 11, 2013
So I went on a trip with my 7.3 PSD the other weekend. It was a 4 hour drive. After 3 hours of driving with the A/C on, the air temp started getting warmer to the point were it seemed like the A/C wasn't working at all. After reaching our destination we didn't drive the truck much or use the AC for 4 days. On the trip home, the AC worked perfectly for the first 3 hours. Then again, the last hour it started to warm up like the AC wasn't functioning at all.
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I can't seem to get the engine temp to middle range on the marker, but yet my heater blows "to me" hot air. Even while sitting in idle for extended amounts of time I cannot get it to "operating" temperature. I would think if my thermostat was stuck open my heater would blow either cold or slightly warm air. I have the 5.4L engine with knn air filter and no cats.
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I have a 350 throttle body injection 3/4 ton 87 Sierra with 107K miles that runs great but when I shut it off it won't start again! Starts right up when it's cold but I have to wait about 2 hours before it will start again once its been started. Turns over just fine. I recently replaced the coil but that didn't do the trick. Is there some kind of sensor or switch that could be heating up?
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My 2.0T 06 Passat misfires sometimes during cold start after 6-8 hrs of parking. It happens very rarely. I have had the car for 4 years (bought it brand new) and the misfire has happened about 5-6 times. Is this normal? Just wondering if they get logged in the computer system so VW Service can see it? My car has got 47K miles on it.
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When the a/c fan is on any setting other than the highest setting the air comes out cold. When the fan is set to the highest setting, it only comes out warm. This happens regardless of a/c or max a/c setting, regardless of fresh or recirculated air, and regardless of car speed. (2005 Mustang GT)
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Here's the situation....It blows cold for about 5 mins, then the air starts to warm and stays warm. I just bought the truck 06 350 crew cab and they supposedly charged the system. I'm wondering if it has a leak but it should start out blowing warm air? I just wanted some thoughts before I start throwing money at it.
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MY 2000 Ford F150 4.2L v6 is running cold. I bought it this summer and it ran a hair above the cold line on the temp gauge. Now that it is cooling off it doesn't come off the cold line. I have drove it for an hour and it never move. The heat is barely warm. I thought it may have been a stuck open thermostat so I changed it out with a 195 and it did not work. I can let the truck run parked for 15 minutes and still be able to grab the hose leading down to the thermo. What is wrong? The guy I bought it from used it to pull a small boat. He said it started running hot when he would pull with it so he had a new radiator, thermo and clutch fan installed. Then he said the truck ran on the colder side. Now the thing just runs plain cold!
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2001 F350 7.3L with 140K. Have had it for 7 years and this has never happened. I let the engine warm up (I'm in Cheyoming and it gets cold!). I'll have warm air coming out at all settings (foot, dash, combo, etc) for a few minutes, then the air turns cold!
I've checked the actuator and blend door and they seem to be working properly. The heater hoses going into the firewall are not particularly hot/warm. Is there a valve or thermostat that could be shutting water off to the heater core? Cause that's what it seems is happening. Like starting off in the shower with warm water . . . then someone gradually turns it to cold. Then next time I get in, warm air to cold again!
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I have a ticking noise that seems to be coming from the drivers side of the engine. 2000 Excursion. It only happens when accelerating in every gear between 1400-2100. No noise at idle or park. Same noise when cold or warm, again only when accelerating. Goes away when you take your foot off gas. New exhaust studs, exhaust does not seem to be leaking, no carbon build up anywhere. No engine codes. Truck runs great and no loss of power. V10 with 120 k on it. Really annoying.
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Got a 13 f150 with the 5.0. I bought it used with about 14 thous kms, now it has 17. Ever since I owned it I noticed the idle was a bit jumpy warm or cold. I didn't really pay any attention to it as it wasnt throwing a CEL or anything but now that I have a roush exhaust and intake I have started to notice it a lot more....not that its worse but at idle my truck sounds like a boat. Weird comparison I know. It seems like it'll jump within +/- 200 rpm @ idle which IIRC is 1K rpm.
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The front a/c blows cold air but the 2nd row and back blows warm. Yes the temp dial is on cold on both dials. Is there a separate a/c clutch that I dont know about to ck the air gap? Is there a separate port to put freon in besides the front. I need to get this fixed because with my bulldogs in the back the heat will kill them.
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I have a problem here which isn't funny around 30F. The engine temperature act quite normal after a cold start, but the heating inside is disabled somehow. So I can select any temperature in the front and back, but it stays cold.
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2007 F350 Dually, 6.0L
AC will blow cold, then shift to blowing warm, muggy air, then back to cold. Seems to be some relationship with throttle movement. Cruising steady ac seems normal. Multiple throttle shifts in changing traffic seems to trigger the warm air. Once accelerate back to normal cruise, can feel clutch/compressor shift and blows cold again.
Any ideas? I have read a possible cause can be the ac clutch can wear and need to remove spacers? Is this a DIY job? What about the ac clutch relay switch? On reading an online repair manual, seems that the clutch is magnetic, and if no battery power to clutch, it removes itself from compressor?
Just had an EGR delete kit installed. Any relationship to this and ac problem?
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I have a '12 Focus and for no apparent reason the A/C will turn off and warm air enters the car for 1-3 minutes and then returns to normal cold A/C air. It doesn't matter if it's on "max A/C" which will circulate the air inside the car or just the coldest setting on the A/C, high fan, low fan, it just happens. What usually happens is that I'm driving 40 or 45, then have to slow down (stoplight, etc.) and speed up again, during the slow down is when the A/C turns off and warm air enters the car. As soon as I'm driving 45 again for a minute it usually kicks back to cold air. OR, while driving on the freeway at 60 - 70mph after about 15-20 minutes it all of a sudden stops cooling and I get warm air in the car. It's been checked by 2 different dealers already 4 times and they never found anything wrong with the A/C System. It did have an actual leak a few weeks ago and that got repaired but it still has this mysterious behavior.
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I have a 1999 F250 7.3 Diesel and my AC isn't working properly. On Max AC as you're driving it would be ok and then it would be warm and then cold and then warm and then cold and so on. I've noticed that the clutch stays engaged as well. I've never seen it disengage. The freon is at the level it needs to be. Then just a few days ago, if you have it on Max and High the air disappears from the vents and you hear a noise somewhere in the dash on the passenger side. I think something might have come off?? What's wrong with my AC with it going from cold to warm constantly? I heard that maybe clutch has too big of a gap?? I have almost 200,000 miles on it.
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I have 1700 miles on my truck and the A/C cycles between cold and warm air. I have taken it to 2 Ford dealers and they agree there is something wrong but their tests are apparently up to Ford specs. They logged complaints with Ford and they were told this was by design with the new trucks and it was normal for the compressor to constantly cycle. New 2013??
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2006 F450 6.0 that I've owned since new. It has had 2 injectors replaced previously, EGR cooler with BPD, and a few other problem parts. As it is getting older, I have recently noticed it runs like absolute dog crap when it is cold. It can't even reasonably accelerate onto the hwy when cold. Once it is up to operating temp, it runs better. It still does not pull like it did when it was new and under 50k miles...but it is at least driveable once warm. I need to do some heavy trailer towing soon and need to get this thing back to accelerating good. What should I be looking at first for the horrible running condition when cold?
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So the other morning I drive the 140 miles out of town to work for the week. when I pull up to the job site the cooling fans were revving really really high! never heard this before. then it went back to normal after I opened the gate and parked my truck and shut it off. I'm driving maybe 5 miles tops to the job and back to the motel every day. however that is far enough that my heater should be warming up and it's not even coming close to warm. it blows cold air. and to compound that I'm not sure the cooling fans are even working. they don't appear to be. Is there a connection here?
2011 xlt 4x4 super crew.....
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AC used for the first time since purchasing the truck last Oct. I notice and passengers in truck with me as well notice that the AC is not strong at all and it fluctuates from cold to warm with a heavy damp smell almost like its letting fresh air in mixing with the cold AC. It seems to be doing this more so when driving but will also do it at at idle after driving. Of course dealership states perfect temp blowing @34 and Freon at perfect levels. Max AC will not blow you out of the truck and reg ac at lowest setting feels like its on a vent setting. When AC first comes out it smells very damp mildew smell. 2013 F-150 Limited 3.5.....
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5.0 coyote exhaust leak .. Since the cold weather has arrived i have noticed a new noise. During cold start engine warm up I hear a nice little tick-tick-tick which sounds to me like an exhaust leak. Is this a common problem? I have just over 58,000 miles would this be covered under powertrain or do they have some nice exclusions for exhaust?
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I am the proud owner of a 2002 F250 Super Duty 4x4, which has 158K miles on it. I live in South Florida and use the truck as my daily driver and also from trips up into the Blue Ridge Mountains.
Recently, I noticed that when I have the A/C on it blows nice and cold for about 15 minutes, but then the air gets really warm. I had the system checked and the Freon levels are right where they should be. A bit of experimenting reveals that if I turn off the A/C for about 10 or 15 minutes after it starts to blow warm air, the systems blows cool air as it is supposed to.
Therefore, I suspect that something is freezing under the hood and preventing the system from operating properly. Since A/C is pretty well essential for us in south Florida, this is a problem, when I have the family or customers in the truck.
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