Last post on Nov 07, 2013 at 4:56 PM
You are in the Chevrolet Impala
What is this discussion about?
Chevrolet Impala, Sedan
#3585 of 3636 Re: Not Happy [06kawi]
Mar 02, 2011 (7:20 pm)
I am actually working on this problem with my friends car right now. Im in school for automotive technician and am bringing his 08 impala to the college tomorrow. But what I have come up with so far after doing an oil change/inspection already on the vehicle is that the serpentine belt was loose. We have picked up new coolant, a serpentine belt, and a new tensioner. My thought is that it is because of the loose belt not being able to operate the condenser properly at idle RPM's. I had a thermometer in the vent and was getting about 70 celcius while it was -17celcius outside while driving down the highway. But when at idle, it got frigid cold, pretty much to outside ambient temp.
I will let you know how it goes, and plan on doing the rad/heater core flushing and then testing it before replacing the belt/tensioner.
But for all of you other guys out there, give your belt a pull, if it feels loose then that may be the problem.
#3586 of 3636 Re: No Heat [bustedknuckl1]
Dec 12, 2011 (10:22 am)
Looks like there is design flaw on these cars.I own a 2006 impala lt with3.5 litre engine,and I have the same problem.Just had the water pump replaced and the mechanic topped up the coolant made sure there was no air in the system by pressure tested it,this was end of summer,and now winter is here ....no heat at idle.Topped up again the coolant(both places,reservoir and radiator)still no heat at idle.And in Montreal it's dawn cold in witer time.
#3587 of 3636 2008, heat goes out when stopped
Dec 23, 2011 (1:00 pm)
I;m having a problem with heat too. Have 2008 impala with less then 70,000 miles. Heat is going out when stopped. Cannot pre-warm with remote start because of this. Coolant was gone in resevoir. Added some, was good under radiator cap. Ran it and I have heat now. Went out to check 2 hrs later and resevoir was down again but not as bad. Ran car again and still have heat. Called my mechanic and he said that it had to go somewhere, can't mysteriously disappear. Wants to check intake gasket soon. No warranty of course, I love my car til now. Had similar problem with last car, 2001 lumina, was gasket and it cost me $500 thru a friend. What is GM going to do about this. How do we get them to do a recall and fix this problem? Seems enough people have the same problem.
#3588 of 3636 Re: 2008, heat goes out when stopped [susan5042]
Dec 29, 2011 (2:18 pm)
I'm in the same boat. I figured they would have gotten this fixed by now. I owned a 2005 Impala and it did the same thing. They said it was air back then, and fixed it, but it came back after awhile. I traded the car. Now I have a 2010 Impala, and it is doing the same thing. I read about the coolant being low, so I just went out and checked mine and there are puddles of coolant in the bottom of the resivoir so it seems low. I plan on bringing it into the shop next week so I will see what they say. It is still under warranty so they will say it is only air in the system, then when it goes out of warranty, they will say it is a leaking head gasket and want tons of money! I think this will be the last Chevy I own. I still have the sulfer smell that GM says is the gas I am using, but it is the same gas I use with my 2012 Elantra and it doesnt smell bad. interesting. ALso my impala has a water sloshing sound in the dash when I turn a corner, like water is trapped and now no heat at idle. I just dont have these issues with the other cars I own or have owned ( Kia Sorento, 2011 elantra, 2009 honda civic)
After 30 years of promoting GM products, I just cant do it anymore. Sad.
#3589 of 3636 2006 heat problems
Jan 05, 2012 (5:28 am)
My 2006 impala is also experiencing these issues. It is no longer under warranty and I am highly upset. I have had the heater core replaced 2 times (luckily under warranty) power steering pump, the brakes went bad very early on. Overall this has been a horrible vehicle as I seem to be at the mechanic more than on the road. As of today my defrost is not working, blows cold air when idle, and has a very loud whining sound when it starts. I want GM to do something about this as it seems many people have this issue. Can anyone recommend how to get them to cover this?
#3590 of 3636 Re: 2008, heat goes out when stopped [klrss]
Jan 06, 2012 (10:48 am)
Just wanted to update everyone on my 2010 Impala. Brought it to the dealer yesterday and they pressure tested the system and found no leaks. They bled the air out of the system and filled it back up and now the heater works. So...no leaks! Can I ask a question..WHERE DID THE WATER GO???" My 2009 Honda Civic has 36K miles on it and I have not had to put a drop of antifreeze in it. I am glad the heater works again, but come on folks, dont tell me nothing is wrong when I bought the car new only a year and a half ago and it leaked enough water that is let air in the system and needed to be bled! UG!Maybe it is the way they designed the Impala cooling system, and it lets the antifreeze evaporate for some reason. ha! I honestly have not had to put antifreeze in my other cars of the past like my 99 Suburban, my 2003 suburban, 2008 GMC Sierra truck...so maybe it is just the Impala with the issues.
Anyway, my car heats again at idle so I wanted to share what they did to fix it.
Good luck to everyone...I think I will save my pennies and jump on a Lexus as soon as I can get out of this stinky, leaky, upsidedown Impala LTZ!
Jan 10, 2012 (10:07 am)
I also have an 06 Impala and have the same issue as above with no heat at idle. I took it to one service shop and they said I needed to replace the head gasket. So I took it to my dealer to get a second opinion and they state it was only low on oil and antifreeze. They topped it off and sent me on my way. Now I have oil on my driveway. I wonder who was right? Now I have to take it back to the dealer for a second look.
#3592 of 3636 Re: 2008, heat goes out when stopped [klrss]
Jan 10, 2012 (4:50 pm)
Update on my 08 Impala. The coolant was almost completely gone! In less then 5 months since last oil change and fluid top off! Called my mechanic and he said keep an eye on it and bring it in ASAP. He also said that coolant can't just disappear. There has to be a leak however small. I smell anti=freeze every now and then too. So next month it goes in. These cars have a 5yr/ 100,000 warranty on gaskets. That's what it says in manual, don't let them fool you. How do we get a recall on this? Shouldn't be happening to so many such low miles.
#3593 of 3636 Re: i have Impala 2006 [tryintohelp]
Feb 27, 2012 (7:52 am)
I had the same problem & what happened is The coolant level went low. The heater core lines are prone to get an air lock. Wait for the car to cool off so you don't get burnt. Top up the coolant tank above half way or higher if you prefer. The rest will leak out on it's own. Remove the top heater hose clamp and pull off the hose off the pipe and hold it close to the pipe to let air out. Have someone start the car and be redy to install the hose back. You just want to let some coolant leak out to let the air come out. Stop the car and in stall the hose clamp back. Oh yes you will need to put the heater on the low setting and at the floor setting while you do this.
#3594 of 3636 Re: 2008, heat goes out when stopped [susan5042]
Nov 16, 2012 (8:39 pm)
I have the same problem with our heater not working idle as well as not warming up with remote start. My wife also complains about hearing the sloshing sound of water in the dash area. We have a 2008 Impala.