Questions tagged [heater]

An assembly to generate heat inside the cab of a vehicle, frequently taking hot air off the engine block and sending it into the driver's compartment.

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Why is my truck randomly blowing cold air with heater on?

I have a 2016 Ford F150 randomly with my heat on it will blow cold air sometimes when idling and sometimes not OK while I am driving or revving my engine. Thanks.
Matt Mueller's user avatar
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Are synthetic oils more resistant against thickening in cold temperatures?

I have heard that each cold start of the engine adds 100km to it's wear due to issues with the cold oil, which is why pre-heating of the engine is recommended to maximize it's lifespan in colder ...
Mr. Engineer's user avatar
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2011Chevy Equinox the automatic Temperature control quit functioning! The ac and heat quit ,I’m manually making the heater work and ac quit!

2011 Chevy Equinox lt 2.4 FWD HVAC ! The temperature control switch quit functioning making it heat only! The ac completely quit. I make the heater work manually!
mvowels's user avatar
2 votes
1 answer
731 views

Car overheating and car smells like coolant

Yesterday I was driving normally when my car suddenly started to overheat. A bit of smoke is coming out from the vent. Suddenly the car stopped and I have a damp passenger side foot rest. Could this ...
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2 votes
2 answers
186 views

Heat Pump vs. Air Conditioning -- Especially in EVs

My understanding is that a heat pump (as a heat source) is essentially an "air conditioner running backwards" -- given that, and since air conditioning is an (almost) universal feature in ...
dlu's user avatar
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3 votes
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Heating issue in Nissan Sunny Diesel

I am driving Nissan Sunny Diesel in pahalgam Kashmir with a temperature range of -20 to 40. My car is heating slowly. I have changed the thermostat also. But after driving the car almost 30 kms the ...
Er Nissar's user avatar
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1 answer
1k views

No heat in car, low coolant vs heater core

Car has no heat and temperature gauge creeps up very close to the overheating zone especially when car is not moving. Suspected that low coolant due to slow leak was to blame, and in the past adding ...
public wireless's user avatar
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05 Honda Odyssey heater only works after low

I have a 2005 Honda Odyssey. The heater system has been working very odd as of late. When the car gets up to temperature the heater even on high only blows out icy cold air. However, if you turn the ...
Travis Pettry's user avatar
-1 votes
2 answers
5k views

Truck will not reach operating temperature

My 2005 GMC SIERRA 1500 runs at about 180/190 degrees, and won't heat up beyond that. The thermostat and coolant temp sensor have been replaced, and I've been trying to burp the system with hit and ...
Ben Hopson's user avatar
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1 answer
5k views

Nissan qashqai heater problems

Not blowing hot air out of heater vent , motor working on all settings both matrix pipes are warm when car is at operating temperature
Cbentley66 's user avatar
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2 answers
42 views

How can I find out where pre-cut lead-through under glove compartment for passenger compartment heater on Opel Corsa Combo 2015 goes?

I'm about to mount a passenger compartment heater cable on my Opel Corsa Combo 2015, but I'm a bit unsure how to use the dedicated lead-through. Under the glove compartment there are two pre-cut holes ...
PetaspeedBeaver's user avatar
2 votes
1 answer
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Servicing an under-chassis diesel heater

So my van (Mercedes Sprinter XLWB) has a diesel heater inside a metal box hanging under the chassis by 4x 17mm bolts. It is connected to air ducting to deliver the hot air into the back of the van. It ...
Stewart's user avatar
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3k views

Why would a mechanic crank heater to maximum

This is a curiosity question. I recently had the timing belt, tensioner and water pump replaced on my Honda Odyssey. When I picked up the van it was really hot inside but I didn't think much of it. ...
Cameron Roberts's user avatar
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36 views

Record -0° temp in Arkansas and my '10 Jeep Grand Cherokee is overheating plus heater stopped working

I had a good amount of 50/50 AF but when the temp dropped to record low of -0° my heater gradually went out over several days. I added a little concentrated AF and next day it overheated. Should I ...
Shelby Israel's user avatar
1 vote
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141 views

How do I diagnose heater problems on a 1997 Chevy Suburban?

I've got a 1997 Suburban and would love a complete list of items to troubleshoot a heater that doesn't work. What I've checked/done so far: blower motor is OK can switch from defrost/feet/face there'...
Wayne Werner's user avatar
1 vote
2 answers
1k views

Radiator not building pressure

I have a 99 Dodge Ram new water pump new heater core and clutch fan radiator not building pressure my heat comes and goes
Kim Redli's user avatar
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1k views

Bizarre Lack of Heat From Heater Vents - 2010 BMW E91 318d

I have an issue I'm struggling to pin down with my 2010 318d 3 Series Touring: All air vents blow cold or at best, luke warm air into the passenger compartment, even on long journeys when the vehicle ...
Phil's user avatar
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Why does my 2006 jeep commander have no heat?

I have a 2006 jeep commander. new heater core, new thermostat, and door actuator but no heat. could someone please help me get some heat
RUFUS ROSS's user avatar
5 votes
3 answers
2k views

How do race drivers clear foggy windscreens?

I know that, in order to decrease weight, race cars may remove AC and heating systems as these are not essential. However, when driving, if their windows get foggy due to cold weather, how do they ...
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1 vote
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A/C Condensor fan turns on when Heater is switched on

I have a Mitsubishi Lancer. I recently got the fan control module changed. However, I have noticed that when I turn the heater on, the A/C condenser fan also turns on. Is this right? I do feel that it ...
Michael Schroter's user avatar
2 votes
1 answer
37 views

HVAC not providing heat in the vehicle

I have a Vauxhall Insignia. I've had the waterpump, thermostat, and housing replaced. It's still not getting hot air in the car. Also, had 2 sniff tests done and compression tests done, both passed? ...
colin barfoot's user avatar
1 vote
0 answers
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What does a high altitude package in diesel heatings

I am currently checking out various camper vans and for one manufacturer there is an option for the diesel heating called "high altitude package" which is supposed to ensure the heating is functioning ...
Manziel's user avatar
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3 votes
2 answers
3k views

Can running the heater with the A/C on damage your car?

I find that having the A/C on with the heater helps defog the car faster in the winter. Is it possible that doing this can damage the car?
neverendingqs's user avatar
1 vote
1 answer
736 views

No heat extreme cold (Mini Cooper r60)

I bought a used Mini cooper countryman 3 years ago. Since I've owned it when the weather hits around -5 degrees F and I cold start the car, the heater won't work properly. The dash says it's slowly ...
Chaze Grooves's user avatar
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1 answer
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Can I get a HVAC diagram that shows vent locations and components for 2005 Ford Freestar

I have a 2005 Ford Freestar that has floor and ceiling vents in the back of the cab. I'm interested in installing a 3rd party external heater and would like to see the ventilation routings to ...
discord's user avatar
2 votes
0 answers
120 views

Why may heating gradually stop after some time driving (and doesn't work in passenger side at all)?

This is a somewhat strange problem. Heating (in driver side) seems to work normal - after somewhere between 15-25 mins. driving or so, it gradually stops working. The warming in passenger side doesn't ...
darune's user avatar
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0 answers
96 views

Heater will blow warm air then go to cold

I have an 01 Ford f150 with the 5.4 Triton, my heater has worked good untill a few days ago, at operating temp the heater will blow hot air but if I change it from defrost to anything eles or turn it ...
Red's user avatar
  • 21
2 votes
1 answer
1k views

No heat, but fan and heater core are working

I have no cabin heat in my 1996 Volvo 850 even though the blower and heater core appear to be working. I have the air mix turned off, so no outside air should be coming in. Nevertheless, the system ...
Cooter Davenport's user avatar
1 vote
2 answers
151 views

Can you "warm up" an electric car in icy weather?

I'm in New England, and the latest snow/sleet/ice storm just left four inches. I did what I usually do with my two conventional gas cars: start them, move them to the street, clean off most of the ...
Daniel Griscom's user avatar
2 votes
1 answer
2k views

Poor heat inside of car and loosing coolant from reservoir and radiator

2008 Subaru forester. I have to add coolant to reservoir every 50 miles or so. I get very little heat from inside the cars vents. I don't have any oil loss or any water in the oil. I have not been ...
david's user avatar
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403 views

Toyota matrix heat/hvac heater blend door actuator

I have a toyota matrix 2005 xrs its blows full heat on the drivers side but cold on the passengers side sometimes just alittle heat will come on the passenger side thats when i drive for a bit also ...
Chauntai's user avatar
1 vote
0 answers
282 views

2008 Honda CRV can't change ventilation mode

Heater works great and A/C works great when I turn the hot or cold knob. Once I change blow mode to window defrost it stays there for several days even if I change the settings to other blow mode ...
user44134's user avatar
0 votes
1 answer
745 views

02 Nissan sentra 1.8 heater not working right?

I have a 02 Nissan sentra 1.8 heater is very weak even after it warms up I have cool heat not hot gauge always stays right in middle never over heats top radiator hose is hot and bottom hose cold same ...
user43870's user avatar
1 vote
1 answer
320 views

No heat when idle

I have a 2013 Dodge Grand Caravan. I had the heater core replaced recently and now I don't have heat on the right front passenger side. I have flush the line both front and back and ensured the ...
JabberJabber's user avatar
1 vote
0 answers
76 views

Just had engine rebuilt, since that i had to replace fuel pump, now heater is blowing and no hot air. Could this be due to the rebuild done?

i just had an engine rebuild and since have had several minor but potentially expensive issues. Can a heater be affected by an engine rebuild? I picked it up 3 weeks ago and was informed that if my ...
user43811's user avatar
2 votes
1 answer
11k views

How long will it take for my heat to work after refilling antifreeze?

Two days ago the heat in our 2011 Jeep Liberty was working fine. Yesterday my wife said the heat wasn't working, it was blowing air but it wasn't warm. I looked online and it was suggested that the ...
Pete Harris's user avatar
0 votes
1 answer
536 views

2006 Pontiac Vibe Heating problems - Toyota engine

To start, I had my mechanic disconnect the compressor for my A/C about 6 months ago. He said my car would be fine without it. Now, with that being said, my heat suddenly stopped working properly. ...
Jason D's user avatar
1 vote
1 answer
804 views

2007 Subaru Outback - Split AC/Heat passenger side not responsive

As stated I have a 2007 Subaru Outback, with the LL Bean package; no LED screen yet on this one. The AC/Heat has split controls, one for the passenger side and one for the driver. I've always kept ...
Oliver Williams's user avatar
1 vote
0 answers
258 views

No heat on high blower - 2006 Silverado

I have a 2006 Chevy Silverado 1500, 5.3l, and I'm having issues with my heat. With blower off at idle, hot air comes out of whatever vent or defroster I select. If I drive, the hot level goes down a ...
Rick's user avatar
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1 vote
1 answer
62 views

Condensation on windows

I'll just start with you're going to feel like this is a vague question 2002 ford explorer xlt 6cyl 4.0 sohc I made a joke to my co-worker about my suv being 2 faced. It had condensation on the ...
user avatar
2 votes
2 answers
188 views

checking head gasket?

I have seen people turn on the heat inside the car before buying probably checking the head gasket or over heating of the engine? And some people press the coolant hose to check it. Can someone ...
sha's user avatar
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1 vote
1 answer
3k views

Peugeot 308 (2010).with heater problems. Only warm air from vents & foot well. Coolant leaking too but engine NOT over heating. No visible leaks

Car heater works but only blows warm-ish air on small vents and footwell blowers. Windscreen vents not blowing warm air like other vents and temp seems to drop or not even be there on windscreen vents....
claire's user avatar
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1 vote
2 answers
7k views

2008 Chevy Equinox: no heat in idle

My 2008 Equinox had not been getting heat in idle, but heat would come on when driving. There was also a strong coolant smell when heat was on. Recently, I was getting overheating messages on the dash,...
Brian P's user avatar
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1 vote
1 answer
983 views

my heat doesn't work iin my 98 Honda civic

My heat doesn't work in my 98 Honda civic. I just had the radiator and the fan motor replaced. I haven't had a chance to test it will this fix the problem?
Missie Wilson's user avatar
2 votes
1 answer
2k views

1991 F-250 vent always blows hot air

tl;dr;? see bold text I recently inherited an old 1991 Ford F-250. It seems to run well, only has 80,000 miles, but it has two main issues (I'll post a separate question about the other one). The ...
Adam Plocher's user avatar
1 vote
3 answers
5k views

How to remove the rear heater on an Econoline

So I'm currently in the process of gutting a 2005 E350 (a former wheelchair van with a raised roof) to turn it into a camper van. As part of this process, I went about removing the back heater. In ...
Textcape's user avatar
  • 111
1 vote
0 answers
27 views

2010 Dodge Caravan

When 2001 Dodge Dakota heater wouldn't work at all speeds I changed the blower motor resistor and all was well. Tried the same thing when 2010 Dodge Caravan heater was doing the same thing and it didn'...
H. Decker's user avatar
2 votes
0 answers
461 views

Engine is warm but interior blows cold air until Throttle is engaged? Blows hot till next cold start

We have a 2003 Toyota 4Runner with the V8. The temperature here has been below -20c many times so far this year. About a week ago my wife noticed that her 4runner is not warm inside when using her ...
Mad Man's user avatar
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7 votes
4 answers
2k views

What is more economic to run? Pre-heater or the engine itself?

I am currently sitting far up in nothern Norway and I am early for an appointment. So I figured I'd wait in the car for the time to pass. But since it's currently -15°C outside: I need to have ...
Alexander Johansen's user avatar
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0 answers
2k views

Failed heater core DIY alternative hack

The problem: My friend's car has a non-functioning passenger side door, and in August, the heater core started leaking into the cabin. So I bypassed the core so the car could remain in use. Of course ...
elrobis's user avatar
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