IS F (2008-2014) :: Low Coolant - Heater Not Blowing Much Hot Air Recently
Mar 20, 2016
So my heater hasn't been blowing much hot air recently. When I'm at idle or just cruising around it blows cold air, I have to bring the rpm's up for a bit for it to finally get hot air but if I just drive normally the hot air turns cold again. I looked around and found the issue where if your coolant is low than the heater won't work and I checked the coolant level and I noticed its way below the "low mark". There's some left but it isn't much, it's pretty much at the bottom. My question is do I have a leak or can coolant get that low on its own? I've never noticed liquid on the ground in my garage or anything.
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Winter is coming and I am running into a problem, I tried to set my heat at the highest level today and was getting nothing but cold air. I get ice cold A/C, but no heat at any temperature. What could be the culprit?
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My '01 Super Duty 5.4 has an overheating/heater problem that the dealer can't seem to fix. I noticed my heater was blowing cold then a few miles later it overheated pushing coolant out of cap. Next day drove fine to Ford dealer who replaced my heater core, thermostat, reservoir cap and a hose. Drove it for a day till the exact original symptoms occurred again with a gurgling sound in dash. Dealer kept for a week pressurizing system but no leaks found. Replaced my thermostat again and gave it back. I drove it 300 miles over a week before the exact same symptoms occurred. Brought back to dealer who said that air was in the system, added a bunch of coolant and supposedly got all the air out. Same symptoms still. Brought back to dealer that finally changed the water pump they said had a leak. Guess what, same symptoms. Heater will work fine for days then it will blow cold, then hot, then cold and sooner or later truck will overheat then just as fast cool down and heater will work again. Still hearing gurgling. Dealer said I don't have a HCV.
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I don't have G12++ yet because I've never had an issue with cooling before but I just noticed that my coolant was low recently. I'm in SoCal where it's been 100+ degrees more than I can remember in recent history...or it at least feels that way.
I'm going to top mine off, take it in to my tech this weekend and have the tensioner and a few other things replaced at the same time but just wondering if it's been an issue or if I should be on the lookout for something else that could be wrong.
Think it's safe to drive after I top it off or should I call a flatbed?
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My wife has a 2008 Chevy Impala with over 80,000 miles. When the weather is cold, the heater will blow cool air while in Park, even with the car warmed up. Then, once it is put in Drive, the heater begins to blow hot air again. Again, all of this time the engine temp gauge is in the middle position.
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My 08 Azera blows cold air out the drivers side vent when everything on the right sides blows heat. If I set drivers side 88 degrees it blows some warm air. I changed the cabin filter and that did not work.
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Bought my Ranger brand new, and I try to maintain it well. Most of the 90,000 miles are highway. Anyway, the OEM coolant was supposed to be good for 100K miles, but since I hadn't done anything in 89K, i have a lengthy commute and the coolant was getting discolored, I figured that no harm would come in having a drain/refill. This was approx. The heat worked flawlessly. Fast forward two weeks, and my local shop performed an oil change (not the quick lube that did the coolant replacement). I was informed of three things:
1) my coolant was low,
2) my heater control valve was leaking (which I was shown), and
3) when hoisted I was shown that a slight residue of coolant -- not necessarily fresh -- was on my water pump.
I was told that 'down the road sometime a water pump could be in my future'. Again, the heat worked flawlessly, and I didn't want to be out-and-about in winter and run out of coolant. So, the shop replaced my heater control valve and topped off the coolant (approx. 1/2 - 1 gallon). Heat worked flawlessly. The last couple days, I noticed two things.
First, heat trickles out on low and medium setting, and second, it takes a long time to warm the vehicle. So, my limited research tells me two things. If coolant is present, and I have heat (of some sort), then, the water pump and heater core are probably fine. Diagnosis says to check the thermostat first, correct?
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I was driving from home to work the other day and it was 6 degrees out. My heat was working good and everything was fine and then all of a sudden the passenger side started blowing cool air. Not cold not warm. Driver side was still hot. It is a lariat and has dual temp zones. Everything I read everyone says blender doors but what would make it stop working out of no where when everything was fine. Occasionally when I start my truck and turn the heat on it makes a popping noise under the dash when the blower kicks on. But it has done this since I owned it an never had an issue. It's 25 below today and I would really love to have completely functional heat. It's an 2008 f350.
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About 3 months ago I noticed at times my Heat would blow out cool air. This would happen mostly when I was sitting idle or in traffic in a "stop n go" situation. I did some research and found out that my Coolant was on the low end. I bought the Pink Coolant from the Lexus dealer and filled up.
I checked the levels again a few days later and it was low again. So I topped off again and looked for any puddles underneath the car when sitting, I paid attention to any smells, and looked to see if I was blowing white smoke out of my exhaust. NOTHING! My indicator stays on the middle range and never runs cold or hot.
I topped off after seeing that it was low again and didn't have to put as much in there, but it definitely was low again. It's now been about 2 weeks and it's still at the same spot (near the low indicator) but it doesn't seem like it's getting any lower. I have done more research and I cannot find any issues with the 2008 LS460's having issues with head gaskets or coolant issues.
I recently had my bumper replaced at the Lexus dealer Auto Shop because of a pothole I ran over that dinged it (also bent my rim)....I know this might not have anything to do with it but I thought I would add this tid bit since I didn't notice the issue until I got it back from them! I'm just really at a loss
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My Driver's side headlight recently started 'switching itself off' - which I understand is a pretty common problem. I'd already had the Passenger side replace a couple of years ago - by the dealership. But this time I figured I'd do it myself.
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Experiencing a hairline crack on the coolant overflow reservoir?
I noticed a bunch of dried coolant during my last oil change, ended up tracking it to where the upper radiator hose meets the reservoir. It's leaking a few drops per week, but it's enough to be irritating. I was only able to catch it by feeling the underside of the hose.
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I have a 2005 STX with the 4.6L, 4WD, AT.
The engine has started to make a loud whining sound recently. I replaced the belt and tensioner since it was original and had 93,000 miles on it. The sound is still there.
The sound increases with rpm but doesn't change when you turn the steering wheel.
The engine starts and runs smoothly with plenty of power.
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I noticed a bunch of dried coolant during my last oil change, ended up tracking it to where the upper radiator hose meets the reservoir. It's leaking a few drops per week, but it's enough to be irritating. I was only able to catch it by feeling the underside of the hose.
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My coolant was right below the low mark (it was right above 1k miles ago so it has a slight leak, but haven't checked the bottom core yet, most likely its leaking there?) so overnight it sat and in the morning ive filled it to the high mark and upon starting and warming up the engine the coolant went back to right below low. It doesn't look like its leaking at least not anywhere that fast, is this normal? I gotta check later again while car warmed up etc to check level, but how can the coolant go from being at the high mark to right below the low mark?
Regardless the radiator had previously been repaird by the lexus dealership for leaks, where it should've been replaced. Luckily lexus said they will take a look and replace, but Id rather not go through the dealership.
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I have a 2011 ISF with 41k miles on it and yesterday I noticed the famous dried pink coolant below the water pump. I thought it only impacted previous years but apparently not. I'm going to drop it off tonight at the dealer since it is still under warranty. Doesn't look like the job has been done before according to Lexus service records.
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At a loss right now. My 2004 F150 4X4 and just recently started sounding like the truck is trying to shift into 4X4 mode while driving it. It stops if it's switched into 4X4. I have taken it to a local mechanic shop I use and they said it was the Actuators and they replaced those. I got it back and the same day the noise came back. Took it back and they have had it for another week and still unable to figure it out. I even took it to another shop that was highly recommended and they say to take it to a Ford dealership. I have read that some say it could be the vacuum operated hubs? Need to figure out what it was and had it fixed?
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I have coolant blowing out of my coolant reservoir when ever i hold it to the floor it does it with or without the banks programmer... 6.0L power stroke...
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I have an 03 Ram 1500 that quit blowing hot air. I have heard of doors not opening to divert the air to the heater core. Heater hoses are both hot, so I'm pretty sure the water is going where it's supposed to, just not the air.
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My gf's 2005 passat is not blowing any hot air out when the heater is set on high. yes, she did turn it on and yes she does know how to work the climatronic. I've noticed over the last couple of months that the passat was not blowing really hot air out like it use 2.
now it's just blowing cold air.
what would cause this?
I am assuming and HOPING that its just an air bubble in the coolant system.
IF not maybe the heater core is going bad or clogged? is there a way to fix this?
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Heater is blowing cold air. What I have checked, coolant level, replaced water pump and thermostat, checked blend door, flushed heater core. When I checked the blend door via the heater treator method I was getting hot air coming off the core but also getting very cold air coming from the A/C evap in side the plenom box. I also pulled the fuse for the A/C clutch and I am still getting cold air. I am look at replacing the HVAC contol.
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Got a bit of a problem with my car. Earlier this week, I got in and noticed there was heavy condensation on the inside of the windshield of my 2002 Chrysler Sebring convertible. The windows had been rolled up and the top up of course. I see this kind of condensation happen on the outside a lot in the mornings. You know, dew settling and all that. If I wait around until later in the day, it evaporates on its own.
Anyway, this time it was on the INSIDE. I wiped it clean easily enough and was on my way.
Today I noticed that my heater wasn't working. The temperature gauge goes up to about 1/3 of the way, so I know the car is warming up. I'm not sure if it normally goes up that high; I don't usually pay much attention to the temperature gauge.
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