No Heat

2005 CHEVROLET IMPALA
Avatar
DLVSD
  • MEMBER
  • 1 POST
Air will come out of the vents but no heat comes out just cold air?
Oct 19, 2009 at 12:04 PM
Advertisement
Avatar
RENAUDTN
  • CERTIFIED EXPERT
  • 636 POSTS
Hello,

It sounds like you have a temperature blend door actuator that is not working here is a guide to help you see what you are in for when doing the job and the location of the actuator for your car below.

https://www.2carpros.com/articles/replace-blend-door-motor

this guide can help as well

https://www.2carpros.com/articles/car-heater-not-working

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is. Cheers

Oct 20, 2009 at 4:17 PM
Avatar
DONO1233
  • MEMBER
  • 1 POST
Thank you so much, I got an actuator for $76.00 and installed it. Took longer than I thought but all fixed!
Oct 29, 2018 at 11:27 AM
Advertisement
Avatar
MORTON SPENCER
  • MEMBER
  • 1 POST
Heater problem
2005 Chevy Impala 6 cyl Front Wheel Drive Automatic 6o,ooo miles

Heat coming in on passenger side but not on drivers side. Put in new thermostat and actuator but neither made a difference. Wondering what else it could be?
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
RHALL77
  • CERTIFIED EXPERT
  • 3,361 POSTS
possible temp door stuck or a actuator is going bad
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
IMAPALAFAN
  • MEMBER
  • 1 POST
I have flushed the system twice and now changed the thermostat what else can it be, it appears to have water flow
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
MASTERTECHTIM
  • CERTIFIED EXPERT
  • 4,750 POSTS
if it is building up pressure real fast i would suspect a bad head gasket but most likely its air in the system. ii let them run until real hot then let it cool down then recheck coolant level and repeat.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
BETTYRUTH
  • MEMBER
  • 1 POST
The driver side will cool but not blow any heat. Does this side have a fuse or something that controls the heat.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
JNOVACK
  • CERTIFIED EXPERT
  • 723 POSTS
the control panel is not working on driver side I can not find any fuses or relays for that the control panel would need to be replaced and I see you have 56000 miles on it what is your warrenty on your car if it is out of warrenty I can send you the removal and install for replaceing the control panel
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
USWJRS17
  • MEMBER
  • 2 POSTS
I have a 2004 Chevy Impala 62K miles with the same issues and I took my vehicle to the Dealership as I'm not a mechanic and they deteremined it was the temp actuator on the 04 model there are 3 as I was getting warm air on the passenger side;however it just blew cold air on the driver's side. I ended up paying $301.72 just to have this plastic piece replaced. The price on the part alone was $54.88 the labor $213.95 .

Good luck, I'm now having other issues with my battery light and a few months ago I just replaced the battery, alternator and at 32K miles the waterpump also went out??? I'm not happy with this vehicle.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
JNOVACK
  • CERTIFIED EXPERT
  • 723 POSTS
the acuator needs to be reprogramed that is the cost of the labor butyes it also could be the acuator the your 2005 that does deturmine the temp on driver and passenger side
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
ZIGZAG457
  • MEMBER
  • 1 POST
The heater only blows warm air if the fan is on low. Once the fan is turned up to on high the air turns cold. but putting the blower back on low it will blow warm air.
Even the coolant is only luke warm after running for a long period of time.
do I need to replace the termastat?
Thanks.
Duane
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
DOCFIXIT
  • CERTIFIED EXPERT
  • 18,828 POSTS
Yes a new thermostat would be the ticket.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
WINDOWMAN_95
  • MEMBER
  • 2 POSTS
How do I change a termostat in my Impala [3.8 V6].
I am having problems with getting hot air inside either side. After you have drove it and warmed it up you still have no heat. If you shut it off and let it sit for awhile the heat will work. Thats why I think its the termostat. Do you think I might be right?
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
RHALL77
  • CERTIFIED EXPERT
  • 3,361 POSTS
how is the coolant level first? make sure you dont have anyother leaks before replacing the thermostat.
the thermostat is located under the throttle body. they can be a pain to get to.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
WINDOWMAN_95
  • MEMBER
  • 2 POSTS
The coolant level is full in both the rad and tank. I haven't found any leaks yet either. Could it be air in the system, and not the thermostat?
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
RHALL77
  • CERTIFIED EXPERT
  • 3,361 POSTS
very well could be air thats why i asked if you seen any leaks or if it is low on coolant. if you dont see any, then i would replace the thermostat
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
BO56
  • MEMBER
  • 1 POST
i have no heat on driver side and no defrost, but i have heat on the passenger side, what could the problem be?

the blower works on #5 1 thru 4 blower does not work
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
LEGITIMATE007
  • CERTIFIED EXPERT
  • 5,121 POSTS
sounds like the mixing doors are stuck closed. is there a hissing noise that you can hear? or clicking noise.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
DCOUCH
  • MEMBER
  • 1 POST
My heater blows cold air? What are some things I can do to troubleshoot this?
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both too hot to hold. If they are..........

The heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
RUBY21
  • MEMBER
  • 1 POST
the control for the heater and AC does not light up on the driver side and the passenger side does
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
RIVERMIKERAT
  • CERTIFIED EXPERT
  • 6,110 POSTS
Check fuses, connections, and relays.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
my heater is blowing cold air I had the coolent flushed and bleed but the air comming out is cold not hot. also the hose going in is hot as shit so I dont think its getting in the cabin of the car
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
Sounds like you have a plugged up heater core and it will have to be replaced.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
my Heater will only blow cold air. I flushed radiator. there is no water coming out in the car, it is not blowing antifreeze on wind sheild. no hot air at all
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
JDL
  • CERTIFIED EXPERT
  • 16,098 POSTS
Do the heater hoses get hot? Might be a temp door under the dash having a problem? Any hvac trouble codes?
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
ANITACORBEIL
  • MEMBER
  • 1 POST
No heat. Water pump replaced last year. Hose broke about a month ago and all fluid was replaced. There is talk about acuators on line, but I can't locate them in the car book. Is there a fuse for them?
Thank you.
Anita
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
try pulling the hvac fuse for 60 seconds with key on then reinstall sometimes that resets the actuators. there are two one for left and one for right and one for heat/cool #2 is heat but it may be #1 as well. pic is under the dash on rh side.
Jan 13, 2020 at 6:31 PM (Merged)
Avatar
JACKGEPHART
  • MEMBER
  • 1 POST
My 2005 Chevy Impala car heater only works when I press the gas pedal down. When I'm not driving it blows cold air, what could be wrong?
Jan 13, 2020 at 6:32 PM (Merged)
Avatar
JOHNNYT73
  • CERTIFIED EXPERT
  • 924 POSTS
You have air int he cooling system. These motors can be a bit of a bear to bleed out. Open the radiator when safe. top off with coolant, start car and turn on the heat, let it warm up to operating temp, raise rpm to 2500 and hold it for 5 seconds (you will need to do this several times through out this procedure), If you have bleeders located on t he the bypass hoses (there may be 2. 8mm), crack them open just enough to let any air out and raise the rpm by hand at the throttle body. keep doing this till you have heat at idle and a steady flow out of the bleeders, and then top off the coolant in the radiator.
Jan 13, 2020 at 6:32 PM (Merged)