Here are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community.
I have a 2015 F150 that heats only on the passenger side. The heater core was replaced in 2017 on a recall. I am living in Kimmirut Nunavut, Canada. There are no mechanics available in our area.
Thanks!
You may have trouble with the blend door actuator. There are YouTube videos on how to fix this.
I have a 2002 Chevy Silverado. I turn the heater knob and nothing comes on. Can you tell me what is going on? Help, it's cold here in western New York.
Possible fuse? My husbands silverado has 2 places for the fuses. One is in the cab and the other under the hood.
I have a 1993 Chevy truck. I turned my heat on for the first time this year and it blows cold, last year it was hot. I replaced the T-stat and flushed the system with no luck.
Is there something else that can be tried before I replace the heater core or should I go ahead and replace it?
My car was doing the same thing and it was a little low on anti freeze. Added the antifreeze and heater is now heating.Hubs used to work at a dealership.
It could be your blend door that door let cold air in or hot
I have a 2008 Silverado and yesterday I went to start it after only being parked an hour and heard a grinding noise, which stopped after 4-5 seconds. Then no air flow at all. I checked the blower motor, resistor, and wires, but it all is fine.
The grinding sounds like it's coming from under the hood when it happens. It's happened again today and nothing will blow. If I wait 15 minutes, the air will blow again. Can an idler pulley or belt cause this? My belts need replacing.Thermostat could cause this problem if not opening an closing properly
Make sure the blower motor isn't loose, check the blower's housing. And make sure all your fluids are filled.
Pulled it all apart and reconnected everything. Seems to be working fine now....
My 99 S10 v6 heater/ac blower works well except the fan doesn't blow air/heat on the floor setting or the combination floor/vents. When I put the selector on floor setting, I can hear the "door" directing it to the floor open/close, and the fan running, but nothing is coming out of the floor vents. Also the blower doesn't work on the #1 setting no matter what vent setting. Position 2 - 4 works on all except the floor.
By Jerry c
Ohh wow! That was extremely helpful!!!! LMFAO!!!!
Check the vaccume hose that activates the vent door for leaks
I have an 07 Chevy van and that was my problem
Only had defroster venting until I replaced the vaccume hose between the intake manifold and vaccume ball
Heater core
My truck is a 96 S10 2.2l with a manual transmission. The heater is not functioning. I have flushed and back flushed the heater core already and changed the coolant and flushed it too. So now I don't know what to do. I need help guys.
By Jon P.
I asked my husband and he said the same thing as zoodad, so that is two in favor of so far.
How do I fix a 2007 Ford Ranger heater? It has been to the shop and they said there was no problem with the heater core, but only a leak. It still does not work.
The key is you said it does work once in a while and you arent looking for a short or a switch problem and maybe you should. In the dash because it will work sometime and it wouldn't if the thermostat was closed. Think simple I would buy manual for the year of your truck and start reading.
Turn your cold to hot mixture knob back and forth and listen for it to open and/or close. Mine puts out either cold or luke warm air. I was pulling a uhaul trailer and the temp never went above low on the guage. When I stopped because I thought I was low on coolant I was able to actually remove the cap and see it was full also put my finger in coolant and it's luke warm. I've changed out the door on a ford RV that one wouldn't move so you wouldn't hear it close. I flushed my system and I will be replacing the thermostat.
I have a 2015 Promaster 3500 heater that is not blowing out hot air. Both core hoses run hot, the control can blow either the defrost or the dash OK, but it just blows cold air.
I will be going out on the road around February or March when Dr. says I can need hot air.Why is my heater turning on with the truck powered down? Also, when you drive, it turns off and on when it wants to. Only high speed works.
Hey can anyone please help? I just bought a 97 F-250 xlt extended cab and the heat will not work. It does not blow air and the heat/ac control does not light up. The truck did not come with a manual so I downloaded one from internet and I checked the fuses that the manual said were for the blower. I don't know how accurate the manual is because I'm also having an issue with my turn signals staying illuminated and when I take the relay that the manual says is for blinkers out they still have power.
Anyway I do get a little bit of heat coming out while I'm driving but very little. I'm from jersey and it's starting to get cold can anyone please help.I have never really read anything on this site which has been helpful for truck repairs, although problems with heaters are very common. Perhaps you could try googling for a truck repair/mechanics forum. My son belongs to several for modifying vehicles for off-roading. These are usually guys with a mechanical bent or actual journeymen mechanics asking each other for tips and advice.
Needs new Heater Core.
I took my CRV into the dealer to have the heating fixed. They have had it for two weeks and it is still not fixed. They said I needed a new head gasket which they replaced; still no heat. They tried to convince me to put a new motor in. I have never had any problems with my vehicle which would require a new motor. I am picking it up today. Am I responsible to pay for a new head gasket and all the other things they did to try to fix the problem? They said it needed a new head gasket. I said that is not why I took it in, that is a problem for another day. My vehicle was running perfectly except no heat!
By Marion S
I have a 2003 Dodge 1500. Ever since I bought the truck the heater has not worked. It only blows cold air (what's from outside I'm guessing) and it only blows at the highest setting. No noises when its on or off. And just recently, when I turn it on it smells like anti-freeze. What's up? What part is broken and how do I fix it?
By Teya R.
The heater will not blow hot air. The truck doesn't run hot and cools fine.
By Tim
If it blows air at all, try checking the thermostat. It may be stuck in the open position, not capturing heat to blow into the cab.
Your heater fan is broken.
My Ford Ranger heater does not blow hard. Is there any way to fix it?
There is heat to the heater core, the fan blows cold air only to roof vents. When I open the cover to the heater core the fan blows the air out instead of sucking it through the core.
The heater on my '96 GMC doesn't turn on. I turned the knob and there is no air what so ever. What's the problem?
First thing to check is your fuse. 2. Check your switch : There are 2 wires on the back of switch. Connect wires together, if your blower heater motor turns the problem is your switch, if it does not its the blower motor.
We have a 1997 Ford Ranger pickup. The heater is turned off and the blower is turned off, yet it is still pouring heat into the cab. Any suggestions?
I have a Ford 250 diesel pickup and it doesn't heat at all when it gets really cold. It is an intermittent problem. When it gets down to -20 celsius or colder it doesn't work. When it's above that temperature it works normally.
The heater fan works and the antifreeze is good. If anyone has any ideas they would be appreciated. I had the truck at the Ford dealership and they said they could not find the problem.
