Ac cold at idle warm while driving. At idle, the system is getting down to the 50 degree range.
Ac cold at idle warm while driving. I got so pissed driving home without ac and windows down (90ish degree ambient temp) that I just went with the 7. I checked the gap and it was little out of spec at . Over the past year the AC will blow cold while at idle and warm while driving. As soon as i starts driving, it starts blowing warm air. Only 100% and then completely stopped responding. It will blow ice cold when you are going above 40 or mph, but as soon as you come to a stop it starts to blow very hot air again and it never goes back to cold air. If the system is low on refrigerant, it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs. I'm leaning toward it being an airflow issue since it is properly charged and when I spray the condenser with water, the temperature at the vents quickly drops about 5-6 degrees. Mar 29, 2012 · 08 7. If I Hot wire the AC Apr 19, 2023 · hey guys, i have a 2021 silverado 3500 swb. According to the manual, the high speed fan only kicks on when you're driving and mine works fine only when driving (monitoring evaporator temps/main relay 2). to/38b2WE2Gap should be . c. Aug 1, 2024 · Addressing the issue of your car AC blowing cold air when idle and warm air when moving is more than just tackling an inconvenience—it’s about ensuring your comfort and safety on the road. Please look at the following link for gauge readings at idle @ 90deg outside. We were just at Disney's Fort Wilderness campground in Orlando, and on the way home is when the AC wasn't working right while driving. Driving down the road it works, and gets nice and cold. would a fan clutch still be my solution for the warm a. I have a 2009 Pontiac Vibe GT with 190k miles. Low voltage at idle. Many issues with inconsistent heat in the cabin can stem from coolant-relatedissues. pressures test good, no leaks and all electrical components are checked and are within spec. is running for a while at idle? Sent from my SM-G955U Jul 20, 2017 · 1999 to 2016 Super Duty - AC blows colder while driving than idling - I have a 2003 f250 xlt with the 5. Check for refrigerant leaks, condenser blockages, and malfunctioning Aug 9, 2012 · 732 posts · Joined 2012. Sep 4, 2021 · Whenever i start the car and switch on the ac system it blows cold air. The problem is the hotter is is outside the hotter the inside AC air blows when driving slower than 40 miles per hour or at idle. 2002 Ford Escape. The evaporator can’t absorb heat from the air. When I am at idle, it blows warm. In hot weather we also run one of the house AC units. 6L v8 with 220,000. Anyone else experience Jun 15, 2021 · For the first day, the a/c worked perfect, however now I have a super annoying problem where the a/c only works at idle, and doesn't want to work when I'm driving. Any thoughts? I just put it on a set of manifold gauges. When he stops and the vehicle is idling, it begins to blow cold instead of warm air. ac warm at low idle when vehicle isn't moving is not abnormal in some cases. May 21, 2014 · Same thing happened to my truck, it would work great going down a highway but when you stop at a red light it gets warm again. It was my fan clutch was wore out and wasn't generating enough air, but not enough to notice my engine getting hot. So I am seeing a charge at idle in 80 degree ambient temps of 30 on the low side and about 125-130 on the high side. Not much needed in this video, but if you don't have a plug gapper you can get one here: https://amzn. Lately my a/c has been a little on the weak side. There's nothing wrong with the fan speed with AC on, and the A/C fins are clean and clear. After a while it gradually begins to blow warmer air. There are many reasons why you might find the AC only works when driving but doesn’t blow cold air during idle. 5" leveling kit, ICON adjustable track bar, Alradco Radiator, 35/12. I guessed an actuator door May 1, 2013 · When I first get in the truck it blows humid and warm, not hot just warm. Aug 4, 2013 · 03 with 4. Apr 19, 2017 · A. Switch on the ec button for around 2 mins and switch it back off it starts to blow cold air again. Tried refilling aircon gas, checked system for leaks, heater valves are cancled, changed the ac compressor, still the Jul 20, 2012 · 97 Dodge Ram 2500 Cummins Auto 4x4 3. Or it needs a recharge. However, on idle at a light or in slow traffic the air gradually warms up. It seems the AC is working properly. While some temperature fluctuation is normal, significant changes could indicate a problem with your AC system. Debris blockage. My one issue is the AC doesn't work when the truck is idling. The importance of timely troubleshooting and a thorough understanding of the root causes cannot be overstated. Jul 6, 2019 · 2007 Ram 5. We have checked amount of freon, check for restriction in orifice tube, cleaned all heat exchangers, and now we re just frustrated because this is just backwards for a normal airflow problem. A/C is cold while driving but when I stop at light, it blows hot. Sep 27, 2022 · Ac not blowing cold when driving on highway. Faulty pressure sensor. Try just starting it in your drive way and have the ac on and rev the truck up to about 2000 or so rpms and see if it gets cold, if it gets cold here's the solution to your problem. This article will explore the various causes of this problem and provide insights into potential solutions. Possible problem/solution? May be related, during cold weather, only defrost works, heater blows cold. at idle even though I don't hear the fan getting loud at all times but only when the a. At idle it gets warm. Now I have cold AC at idle. I replaced the mechanical fan with electric fans. It will only engage as the clutch warms up from the additional heat transfer. One possibility is that there is a problem with the cooling system itself. Anyway, as the subject says, temps from center vents blow ice cold in low 30s per infrared temp gun while driving (or even idle after cold start this morning in garage when outside air temp was about 80). Jul 30, 2023 · If the reading on the low-pressure port is between 25 PSI to 45 PSI and the reading on the high-pressure port is between 250 PSI and 400 PSI, then you can rule out low refrigerant levels. This is because the engine cools down faster and the AC can then work more efficiently. The fan airflow on a really hot day just isn't quite enough to manage the A/C, though it does very well with the coolant temperature. HELP Idle ac cold ,driving crusing warm air. 2010 Tundra Jul 27, 2023 · I've found that my '16 doesn't blow particularly cold air at idle, either, and never has. Cools down within 1 minute after slowing down. Blowing out the condensor is a good recommendation, as is replacing the expansion valve which could be clogged and causing a restriction that would give you Sep 8, 2023 · AC only Blows Cold when Driving: What Causes The AC To Blow Cold Only When Driving? There are a few potential causes for this problem. Just awful weather. I went to remove the clutch plate bolt and the bolt broke. #2 · Aug 9, 2012. When parked can keep the air cold by keeping rpm up over 1500. Low refrigerant affects cooling efficiency, while a faulty relay disrupts compressor engagement. Super nice super clean. When AC blows cold, it means that there are a few things to check in order for your car to be in good working condition. Faulty filter dryer. 55 The A/C blows ice cold at idle and around town but anytime it's over 90* and going 70 mph and over (2,000 rpm) the A/C starts to blow warm air, barely any cooler than ambient air. Jan 1, 2023 · My 2010 Prius today AC started blowing cold air as usual in when I turned on the car. Idling at a stop light it gets cold. I just ordered some gauged and a vacuum pump to help with the repair. I have an 08 F350. Apr 30, 2019 · If it has a mechanical fan, turning on the AC doesn’t turn it on like an electric fan. Jun 30, 2016 · I need help finding why my car's air conditioning (2011 Ford Mustang v6) is only blowing cold air at idling and not while driving on the highway when it's 100°F here in Nashville. When he is driving down the road the climate control works normally. 3 fan clutch mod. . The Basis of Car Air Conditioner Jun 12, 2009 · A/C blows cold @idle, hot while driving Thread starter fjokie; Start date Coolstream Auto Air Conditioning Parts. No airflow and a hot engine compartment, in some conditions the airflow from the radiator fans is not enough to give full cooling "feel". Not super cold but that's 30 degrees below the ambient which is healthy. A couple of cars passed it started blowing extremely cold air again. Not sure what the issue is. 7L Hemi. Aug 24, 2023 · For context, 2013 EX-L. Many drivers experience a frustrating issue where their car’s AC blows cold air for a while, then suddenly switches to blowing warm air. Apr 27, 2010 · I'm having issues with mine as well. Jul 13, 2017 · Car AC blows cold then blows warm Car AC blows cold then warm: Check these common causes. the ac works and blows cold at idle but while driving around 60 mph it stops blowing cold. If the compressor isn’t working properly, it can’t do its job, and the AC will blow warm air. 3 F-350 at Idle A/C blows cold air. Did some research and found the AC clutch air gap could be off. Let it sit a while test again about an hour later same results minus high side pressure while a/c is on is now 250-300 May 2, 2017 · Like the title says my AC in my '09 blows cold while i'm moving but at stop lights it's luke warm. not in this case. You may still be slightly low on freon and the only way to know for sure is to hook up a set of good gauges. we tried relieving some pressure from the hot side and refilling the cold side and it got a lil cooler. Jul 2, 2021 · Hi everyone. Jun 27, 2013 · My experience with A/C blowing cold at higher revs but warm at idle (assuming the fans are working, of course), the culprit it typically a blockage of some sort somewhere in the system. Reving the engine should increase the voltage above 14v. The damper door seems to close when going on MAX AC, but when driving something must change because it causes warm air to blow so either the door is opening (losing vacuum pressure), this is where I'm not sure of the other issues. Once I get the engine going, it’s nice and cold. I start to move again and the ac will get cold. The AC only blows cold air while driving. Nov 19, 2022 · So, If you turn on the AC during hot weather, a faulty AC cooling fan can prevent the car’s AC from blowing cold air. After a minute or two of steady driving it starts blowing ice cold again. Jul 1, 2016 · Having some issues with my vehicle AC. Or it’s overcharged. Apr 30, 2010 · 1999 - 2003 7. Here are the most likely culprits and how to diagnose them: Low Refrigerant Levels. Faulty orifice tube. Usually A/C systems usually get colder the faster you go. They only maintain the temp at idle and you only really cool the interior while at a high idle or driving down the road. When I got to the stop sign on my street and came to a full stop it started to cool off. Any suggestions? I've seen everything from cleaning the compressor to the clutch fan going out. As soon as I start to drive steady withoutout having to stop it starts blowing ice cold, but as soon as I get to a stop in traffic and then begin to accelerate again it starts blowing warm humid air. Jun 7, 2017 · Could be several things…. it can also be caused by the compressor running slower at idle versus a higher rpm when you are moving, so try keeping rpms up around 1500 and see if that has any affect. I've checked the pressure and everything is within range. The temp outside was only 80 degrees. As the title states, my AC temps creep up at idle, and go back down once I've been driving for a while. Jul 15, 2009 · The A/C, in my '04 Armada, blows hot air for too long of a time until I start driving, then Ice cold the minute I start moving. Jul 10, 2020 · Your area's temp/humidity zone will have an affect to A/C performance at idle. Jun 3, 2011 · I had this problem, the ac kept cycling at idle and was blowing warm air, but while driving it worked like a champ. When I'm idling with Jan 26, 2021 · Yeah, you're right. Last few days have been over 100 degrees with relative humidity around 40-50%. Start driving and A/C begins to blow warm air. Couldn't cool the truck at idle due to lack of fan speed and ac was warm. Aug 3, 2023 · Now it blows cold at idle but it cuts out intermittently while driving. I’ve read conflicting info that the condenser isn’t getting the airflow it needs so it’s not effective at idle. You should make sure that your car has been Jan 2, 2020 · 2015 - 2020 Ford F150 - cold air instead of warm while idling - I have a friend who has a 2015 Lariat FX4 with about 37k miles on it. 020"-. When I come to a stop the AC starts to warm down and blows warm air. I've noticed that under any acceleration (pedal at 20% or 50%) will cause this warming to occur where the air blows at around 70 degrees. Already checked the fans, and tested the fans using a scanner so both hi and low speed work fine. Just changed the connection fittings where it was leaking and recharged but the hot pressure is about 300 and the cold is about 25-30. Suggest you hook up a AC manifold gauge set and see exactly what the system is doing. Vent doors not operating correctly. Jul 29, 2011 · Thanks - I forgot to include the vehicle. Jul 5, 2024 · 07/05/2024. 036". Joined Aug 16, 2011 Threads 14 Messages 358 Jun 27, 2010 · Mine is cold(42-48 degrees out of the vent) at idle to about 1500 rpms then goes up to 50 to 60 degrees out of the vent, this is on MAX AC on normal same thing only every reading is about 10 degrees hotter. has anyone ran into this before? Aug 16, 2023 · My ac only blows cold when I'm driving. Faulty compressor. The car AC system is a closed loop keeping refrigerant under pressure. May 15, 2010 · topped off refrigrant, blowing warm air while idling and cold when driving, compressor is making a clicking type sound, compressor pulley would stops when turning off the engine, but then move again a little, high pitch sound of pressure being release from the compressor. Aug 9, 2020 · It runs great otherwise and gets great gas mileage. Is there a fan for the AC condenser? is it hard to replace if bad. Jul 3, 2018 · 3. Apr 7, 2016 · I’ve noticed at stop lights and idle that my AC is barely cold. Jun 28, 2017 · My 2009 Nissan Maxima has cold air when idling, but when I get on the Highway it tends to get warm for a while then it kicks back on to cold. Jul 10, 2013 · Fan clutch wouldnt respond to lower levels of duty cycle engagement. So the air stays hot instead of getting cold from the AC at idle engine speed. When idling, seems like the AC is struggling (like it is going on and off and the car shakes a bit), don’t know if that is the AC clutch I had the AC clutch replaced around 90,000 miles (as I didn’t realize this part was recalled), and seems like similar symptoms, but wondering if there is a common problem Mar 23, 2015 · So I just bought this new to me 03 Ram 2500HD 5. You should be seeing above 13v at idle with the AC on. Jul 4, 2021 · My other 3 cars have additional fans for the A/C, but the Optima, I believe only has the one, so that needs to function when needed. Once I start driving normally it does not blow as cold. Aug 8, 2023 · I have a 2008 CRV EX-L with 205,000 miles. When driving around town or on the highway my AC blows really cold but at idle you can tell a drop off in temp. I can turn on my a/c on a relatively cool day and it blows cold. 7 110,000 mi. Aug 9, 2010 · I have a 2002 GLX sedan with cliamtronic. If the coolant level is low, or there is a leak in the system, this could cause the AC only to blow cold when the car is moving. As soon as you start driving the rig, the air goes warm and I have never encountered this before. My 2000 was the same way: frosty AC while moving but warm and pathetic in traffic. About 95K miles. 4l engine in it and lately my AC hasn't been standing up to the heat of the Midwest. another thing that can cause this is a slight Jun 30, 2020 · Since the AC compressor is driven by the engine, it doesn’t pump as much refrigerant when you’re at a stop or driving slowly because the engine RPM is low and the compressor isn’t spinning as fast. Basically, my vehicle, a 2001 chevy tahoe, has good AC when I am driving down the highway. I have tried it on recirc and it does not change anything. Any ideas? - I was wondering if anyone has had this issue and knows what's going on. You would need to look at the temperature door at idle and see what position it is in, and see if it changes when you bring the RPMs up. At idle, the system is getting down to the 50 degree range. C. Some condensers release heat by the natural air passing through them while driving, either by the forward motion of the vehicle or by fans that actively force air through the condenser. 030" Oct 1, 2021 · Why Does My Car Only Blow Hot Air While Driving? Your car's heater works in tandem with your engine's cooling system. To check voltage at idle with the AC on is easy, you just need a volt meter. When first started blows cold like it always has air stays cold while driving. Mar 20, 2017 · My Tundra just recently started blowing warm/outside temp air while idling. Read on to learn the most common reasons as well as how to fix the problem in each case. When your car’s AC blows cold air while driving but warm air when idling, it’s likely due to issues with the refrigerant charge, condenser airflow, or compressor clutch function, which can lead to inconsistent cooling performance and decreased efficiency. The refrigerant or coolant is the lifeblood of any air conditioning system. In the mornings while driving to work it blows cold air since it's maybe 78° outside but once I get off work it's 100°F and it won't blow cold air. 5R20 Nitto Trail Grappler, Detroit TrueTrac Oct 14, 2021 · The problem of your car AC blowing warm at stops but cold when driving is a common issue with several underlying causes. 3L Power Stroke Diesel - A/C blows cold then gets warm. Just as I hit about 15 mph, starts to get nice and cool. Jul 13, 2019 · When i travel on Highway or streets AC works great. It'll get pretty cold at idle, once I start driving it gets warmer. Jan 24, 2024 · With low refrigerant charge, the pressure is too low to cool the air. Jun 24, 2013 · 1St test: OAT approx. anyone else have this issue or can point me in the right direction? -'09 F350 CCSB, SRW, 2. June 13, 2017 at 1:36 am #881347. Get Aug 13, 2024 · If your car’s air conditioner starts blowing warm air when you accelerate, there are a few potential causes. 45 is a bit high, sounds like it needs a shot of juice. Recently had a vacuum leak repaired that was May 30, 2022 · AC Blows Cold When Driving Hot When Idling is a technical term that means the air conditioning of a car works better when the car is moving. Has been that way since the Jul 3, 2019 · Like I said earlier at idle these compressors are not the best. turn on ac with max fan, low side drops to around 40 psi - High side goes to 250-300 immediately and then climbs almost all the way to 400psi. So I decided to replace the compressor and Jun 13, 2023 · Car air conditioner not blowing cold air when idling is a pretty common issue related to your vehicle’s AC unit. It only has done this two times when it is really hot, "FL hot", 98 F, and parked for a while. I have an clutch fan for the motor. Sometimes cuts the compressor cuts off for a few seconds even at idle but the air blows cold pretty much all the time. Full larimie, heated leather, infinity sound system. Aug 7, 2022 · Looking for some help. Ac blows cold idling and around town, but when driving on highway (>50mph) ac blows totally warm. 70-75*F, Initial start no a/c, pressures equalized at near 100psi. 9% of the time, the fault is a bad valve at the back of the compressor. I wouldn't expect the dash AC to blow warm while driving and cool when standing still. When the AC in your car isn’t blowing cold at idle, there are a several common issues that could be to blame. getting warm at idle as well as my fan getting much louder when reving and driving. Must say that in my 5 years of dealing with the Optima A/C problems, found that 99. On a hot day it struggles to even start out. New radiator, a/c hose, recharged. When driving, the AC blows ice cold. Aug 7, 2023 · Diagnosing Car AC Issues at Idle. I love it. The most likely cause is a problem with the compressor, which is the part of the AC system that pressurizes the refrigerant. Thanks in advance for any input. I sent a couple of text and then started to back and drive it immediately went from cold to hot. Nissan Rogue Ac Blow Cold At Idle Then Warm While In Motion Troubleshooting May 8, 2024 · If your car’s AC blows cold air while moving but warm air at idle, it’s likely due to irregular compressor clutch cycling caused by low refrigerant levels or a malfunctioning relay. 2006 scion XA with a fresh r134a recharge. Aug 24, 2020 · Once the freon leaks down to a certain level,the vent temperature will start to diminish and then the compressor will start to rapid cycle, that is probably the first indications of low freon. The A/C cutting out while driving seems more random than before but I haven't had much time to play with it. It continuously cycles warm, then cold. qhzydn xmhxi xfjsp ggigq wfbooar jlybae zco luq vfvi kcge