Lexus LS 2007+ :: Heat Not Working At Idle
Well of course with the coldest weekend of the year coming up my heat stops working.
When I'm driving it pulls heat off the engine just fine but stopped it just blows cold air.
Honda - Accord :: 2007 - No Heat When Idle?
My 2007 suddenly wants to give no heat when idle...as soon as I begin moving again the heat blows hot, but when stopped at a light or sitting in park the heat only blows cold air...
View 2 RepliesSanta Fe (CM - 2007-12) :: Heater Won't Heat When Driving But Blow Hot When Car Is Idle
I have a 09 santa fe and it just started doing this. when we start it and let it warm up it will get the normal temp and will blow hot air but when we start to drive the thermostat goes back down to cold and it will blow cold air. I have had a problem similar to this before and taken it back to the dealership and they replace the same thing over and over. but this time its not fixing itself and it is staying like this. usually it will fix itself.
View 5 RepliesLexus LS 2007+ :: No Interior Heat At Idle - Low Coolant In 2008 LS460L?
My 2008 LS460L blows cold air on cold days/nights when the engine is idling. Raising the RPM to about 1500 causes heat to start to flow out of the air ducts. I also hear a gurgling sound behind the dash when accelerating normally from idle. The water pump was replaced by Lexus in late April 2014.
I have checked the coolant reservoir (engine cold) and found it to be slightly below the "LOW" coolant level mark (not empty). It would seem that since the feed from the coolant reservoir is on the bottom of the reservoir, as long as there is some coolant in the reservoir, the rest of the system should be full.
All things considered, are the two issues (no heat & gurgling sound) more likely to be caused by low coolant in the system, the relatively new water pump, or something else? BTW, what is the proper method to top off the coolant in a 2008 LS460L? Are there any special bleed ports for eliminating air pockets?
Prius (2004-09) :: 2007 - Rough Engine Idle?
My 2007 prius has been idling very roughly recently. It seems to be every time the petrol engine kicks in when the main battery is low and charging. A few weeks back, the malfunction indicator light came on and i took it to the dealer. They said my spark plugs had a lot of carbon build up on them so they cleaned them up and put them back in. Also it was missfiring from time to time. The light went away but it is still idling rough if not rougher then before they cleaned the spark plugs. Its not just like that in the morning. Even if my car has been sitting in 40 degree celsius heat all day it still idles like that. They recommended I use better quallity fuel. I used to use E10 but when I was doing long drives, i filled up with normal unleded. I havent used E10 since then. It never had the rough idle problem when I was using E10 so I am curious to think my car may not like normal unleded. The fuel quality here in Brisbane Australia isnt known for its poor quallity. I'm not sure what to do next. People have recommeded for me to use Wynns Spitfire fuel treatment to keep the spark plugs and injectors clean.
View 5 RepliesCelica :: 1994 GT - No Heat At Idle
My son has a 1994 Celica GT with the 2.2 5S-FE engine. Recently told me his heat didn't work very well, he had mentioned it last year but due to extreme cold we've been having I decided I would look at it for him. So anyway, I started by pulling the thermostat thinking it was probably stuck open or possibly someone had removed it completely, well there was one in there and it was closed so I tested it in boiling water, worked fine, replaced it anyway.
So then I checked behind and under the dash, thinking maybe something was opening or closing completely, but they are connected and operating, when I move the controls inside I can hear the doors moving and closing and all the linkages under the dash are connected and operating. Still no heat, so I figured the heater core was clogged since the return hose didn't seem to be getting hot, or the heater control valve was bad, pulled the heater core hoses, checked the heater control valve, control valve worked fine and was not plugged. Flushed the heater core, nice clean antifreeze, I then checked it with air, manual said put 6 psi on the input and make sure it was coming out of the return, which it was.
Reconnected everything, bled the air, still nothing, took the hoses off and connected the return hose to the heater control valve, bypassing the heater core, both hoses got hot. Sure seemed like a clogged heater core, did the air test again with 2 psi, still made its way out the return side. Reconnected everything again, still same issue, return hose never got hot. So while it was running hot with thermostat open, I removed the return hose, nothing coming out of the core, then I revved the engine and it started coming out, reconnected it and ran car at 3000 RPM, finally a little heat out of the vent, about 115 degrees by thermometer placed in vent, as soon as I let it idle the temp fell back to 80 within a minute or so.
Now I figured the water pump impeller was worn/corroded or was slipping on the shaft, so I pulled the whole thing apart. ( I should mention that the entire cooling system is very clean I don't see any corrosion anywhere) Any of you that have done this knows what a pain in the butt the whole job is, anyway, when I got it apart I was surprised to see that the impeller looked like new and was definitely NOT slipping on the shaft... what the heck???
When I took the pump off the housing I noticed the housing had a lot of wear, it look as if the previous owner let the water pump fail to the point that the bearing wore enough that the impeller ground down the raised boss inside the housing, I though AH-HA, this has got to be the problem, water is not actually pumping/circulating inside the pump as efficiently as it should, hence the reason I only get coolant into the heater core at high RPM. So i replaced the housing, the water pump, and while I was in there I did all the oil seals, and the timing belt. Well I got it all back together, fired it up added coolant, let the engine come up to temp, bled air, still NO HEAT!
Elantra XD (2001-06) :: No Heat Or AC At Idle
2004 Elantra - 65,000 miles: Heat and AC works fine when vehicle is moving. At idle or parked it just blows air.
View 2 RepliesCaprice :: 1996 - Little Heat At Idle
I got a 96 caprice sedan...have very little heat at idle but pretty good as long as I am moving or above idle rpms..put in new stat....ran water through core...appears to have had new water pump recently...check heater box for blockage..its clear and all flaps are working as they should....I am at my wits end....
View 2 RepliesPrius (2004-09) :: 2007 - Knocking Noise / Rattle Only At Idle
My car is making this noise. Its only at idle. Doesn't affect fuel economy, just alarming.
View 19 Replies5 Series :: 1997 - No Heat From Vents At Idle
I've got a 1997 528i with 285,000 KMS...the radiator, water pump and thermostat have all been replaced (within the last 2 years). The temperature outside has dipped to -15 C and I am now experiencing a problem with the inside cabin vents not blowing hot air through the vents. The car warms ups and the temp needle pins to 12 o`clock without any problems.
The vents blow cold air at idle (with temp needle at 12 o`clock) and them warm air when driving the vehicle. I have checked coolant level-it`s o.k, the fan speed setting ( hi and low) work fine, and the wheel located at the middle of the dash vents can be adjusted fine ( red and blue)...I have tried turning off and on the unit, adjusted temp setting up and down and tried to turn the wheel slowly (blue to red) but still not giving off heat as it should.
Ford A/C :: 2001 - Heat When Driving But Not At Idle
I have to admit this is for my 2001 Civic EX. She warms up easily in summer and winter, never overheats, has a new thermostat and flushed radiator and gives plenty of heat when driving....but as soon as you stop at a light or sign no heat...drive off and you have heat. I was thinking clogged radiator or heater core...hoping it's the former.
View 14 RepliesPrius (2004-09) :: 2007 - Leaving Idle For Six Months / What To Do To Maintain Battery
I am not going to use my Prius for six months. What can I do to keep the starter battery alive? this battery is almost new. Also would like to hear if the long period of inaction will affect the main battery.
View 19 RepliesCamry :: 2002 - Car Heat Up At Idle / Temps Will Drop
My wife has a 02 Solara V6. It has been a cold spring and now it has warmed up and in the 80's and a problem has reared its head. Engine runs fine, will warm up normally and while driving will stay at a normal halfway temp.
Problem is it will heat up at idle, say at a light. The fans run, but half assed. They'll kick in with the AC on and the temps will drop, but then they switch off to half assed speed again. I will probably take a multimeter and measure the voltage at each fan plug when they are running slow.
The weird part is both fans go full bore when the AC is on and then slow after about 4-5 mins.
Impala - Chevrolet :: 2009 - No Heat In Cabin At Idle
2009 Impala, 6 cyl., 32k miles, with the engine warm and running below 1000 rpm I only get cool air entering the cabin. As soon as I rev up to 1000 rpm and above heat enters the cabin. The coolant level was a little low and I added about 2 cups. I haven't driven it since adding the coolant but I doubt that is an issue. Since the day I bought this vehicle (at about 16k miles) I could detect a whine sound coming from the engine compartment at start up. This may have something to do with this problem, but until just recently the heater did work fine. The A/C works fine. Thinking maybe a water pump?
View 4 RepliesPassat (B5) :: 2002 V6 - No Heat / Cold Air Blowing At Idle And Under Load
2002 Passat v6 - climatronic control...
I have just cold air blowing at idle and under load. I have read posts and checked the following: temp remains at 190, heater coil hoses-both are hot and removed the dash to see if the flapper door (red arm) was moving-it is. Any other things I can check?
Sonata NF (2006-10) :: Idle Always Rough Whenever Put The Heat On In Cold Weather
My idle seems to always be somewhat rough whenever I put the heat on in cold weather. While in drive I'll come to a red light, heat will be on and I'll stop. The. my idle will bounce down then back up. I shut heat off to test and it only does it while heats on.
View 5 RepliesGolf V R32 :: Not Blowing Warm Air At Idle But Heat Comes Back Under Load?
My car is not blowing warm air at idle when warmed up. When under load driving the heat comes back then chills down when stopped at a light or traffic. I did a coolant flush by fill and gravity drain earlier this summer and have had zero issues with overheating or anything else. Could there be air in the heater core or is my water pump or thermostat failing?
View 4 RepliesFord - Escort :: 1999- Rough Idle Drop In RPM When Heat On
So I turn the heat on, and my engine feels like it's going to stall out, the RPM's drop by 200. What could this be?
View 5 RepliesFord 6.0L Power Stroke Diesel :: 2004 - Heat Up During Idle
I have a 2004 Excursion Limited with a 6.0 PSD. Recently I have noticed my temp, I have a Scan Gauge II, slowly climbing when I am idling. On the highway it runs anywhere from 175-205 depending on time of year and load I'm pulling. Lately I have noticed it starting to climb while sitting in a parking lot at idle after coming off a steady speed run. Temp goes from about 175 up to about 205 just at idle. It is a slow creep up not a dramatic change. I have checked my coolant levels and it is full. I have made sure the front of the radiator is clear.
View 8 Replies