Question about Cars & Trucks

1 Answer

I am seeing a message "Connection Failire". The system starts blowing cool air when the heat is supposed to be on. Sometimes the heat works and sometimes it blows cool air..... Jeff

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 652 Answers

I will look into this

Posted on Dec 23, 2016

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is it blowing warm on and off on the driver side and blowing cool on the passenger side?


Here's is a little background and a couple of thoughts. Turning to the background, first. The heater/air conditioner system in your 02 uses the same set of ducts located in the instrument panel. In turn, those ducts are linked to what can be considered miniature version of the cooling system in the engine compartment (yes, this is a greatly simplified version). The whole system, in fact, is run off the main heater/ac system, however, it has a separate series of controls so that it can function properly.

When you dial a temperature, a signal is sent to the heater/cooling system telling the system to open a series of baffles, directing a flow of heated or cooled anti-freeze/coolant to the proper "radiator" behind the face of the instrument panel. In turn, the fan system activates a series of doors behind the instrument panel so that the flow of air is directed through the "radiator" and into the passenger compartment. This is essentially the heater/cooling system work.

Now, you say that the driver's side is hot, while the passenger side is cool. What has happened is that the flow of heated coolant that is supposed to heat the passenger side of the duct system is blocked. Since there is no heat to warm the air that is flowing past the fins of the "radiator," the flowing air remains cool to cold, depending on the weather and ambient temperature. The result is that one side of the car remains cool. And, since the other side of the "radiator" is normal and the air is heated, it is warmed.

That is the most likely explanation for this.

Another possibility is that the baffles themselves are stuck and the coolant that is supposed to be directed to the passenger side is not being directed their.

Either way, your technician has some work ahead.

Jun 05, 2015 | 2002 GMC Envoy XL

1 Answer

Heater on driver side blow cold air an passenger sideblow heat at first the place I bought car said no problem. Then they flush heater core an now blowing some heat. But need to be idiling. Initially the...


I'd take it to another place to get it looked at. Does your car overheat? Are there cold spots on the radiator after the car is warmed up? The heater is very closely associated with the cooling system. Sometimes a bad radiator can cause problems with the heater. You will be able to tell if the control flaps are working if air is coming out of the proper vents on the settings they are supposed to.

Jan 08, 2015 | 2005 Honda Element

1 Answer

Citroen troubleshooting


I had similar problems 2 times with the automatic heat / AC module.
I suppose your system is automatic too.

First time the commands were working erratically acting weird. Sometimes was heating at full capacity blowing heads off. At other times it was not starting at all.
The whole module had to be replaced.

Second time if the car stayed in the sun the AC was heating, after starting the engine and cooling started only after achieving greater speeds (above ~60km/h). Whenever the speed decreased the system began to heat again eventually. It turned out that the engine cooling fan was broken and had to be replaced. That fan cools both the engine radiator and the AC radiator. If it is faulty your engine might be at risk of overheating at low speeds.

Mar 26, 2014 | 2001 Citroen Xsara

1 Answer

On volkswagen beetle 2006 when car stops on red light heating system stops workin start blowing cold air. and ven car start moving heat comes back and starts heating again. They told me it is air in...


sounds like heater core may need to be cleaned... volks wagons have heating systems that sometimes do very strange things for no apparent reason....

Dec 28, 2013 | 1998 Volkswagen Beetle

2 Answers

Air conditioning is blowing out hot and cold air


It sounds like the dual climate control valve. It is supposed to close the valves when the a/c is turned on, but they get stuck sometimes. I have already replaced 2.

What happens is the valves get stuck and the engine heat will blow over the cool air making it feel warm, even though the a/c is working fine.

If it started out on one side of the car cooling better than the other than you can almost bet this is the problem.

They will be called a heater control valve by most auto parts stores. I think the part is Motorcraft YG378.

Another way to make sure this is the problem is to find the dccv and clamp the two top black hoses with pliers or something and see if the car gets cooler. It will still not get cold but this will let you know if the dccv is the problem.

Jun 03, 2010 | 2000 Lincoln LS

1 Answer

Heater started blowing cool air? 07 titan 4x4 LE.


auto ac? check for a coolant leak low collant level will cause air pockets in cooling/heater system.

Mar 21, 2010 | 2007 Nissan Titan LE

2 Answers

The AC stops blowing air for a while and then re-start working normaly.


Have you noticed that the AC quits blowing cold air when you are heavy on the throttle, or climbing a hill? Does it return to blowing cold air when you let back off the throttle and relieve the load from the engine?

If you answered YES to those questions, your AC is operating normally. AC compressors take quite a bit of power from the engine to operate. In vehicles with smaller engines, the AC compressor will disengage when there is a heavy demand for power placed on the engine, and you will not get cold air. When that demand is gone, it re-engages power to the AC compressor.

Dec 03, 2009 | 2006 Mazda 3

1 Answer

Sometimes heater will blow cold air and a/c will blow hot air --a while back it started having a clicking noise but now it has stopped and started not working properly. i keep working with it and put it on...


Clump sound is probably the blend air door inside housing moving to where it's supposed to be. Is that when you notice it heating like it should? Try to pay attention when driving to see if you hear that "clump" noise or feel different temperatures as you accelerate, and then let of the gas, which would indicate vacuum operation of blend air door, and tells you that there is a vacuum leak somewhere in the system, or a perhaps just a faulty check valve in the line somewhere. let us know.

Dec 13, 2008 | 1998 Lincoln Town Car

1 Answer

Heater blows cold air


With the car warmed up,feel the heater hoses,are they both warm/hot near the firewall in the engine compartment?If they are both warm/hot,then the heater core should have circulation through it and it may be a "blend door" issue in the heater a/c assembly.If they are not warm/hot then the heater core could be dirty and plugged up and needs to be flushed.
If the above does not help,a drain and vacuum of the cooling system and vacuum refill will remove any trapped air.
Sometimes,clamping off the top rad hose and holding the engine rpm at 2000 rpm will force trapped air out of the heater core.(Watch temp gauge when trying this)
Lastly,a NEW thermostat doesn't mean its working correctly.

May 18, 2017 | 2005 Lexus SC300

2 Answers

Engine is over heating and blowing air into coolant resivor and boiling coolant


The blowing of air into the coolant resevour is caused by a leaking head gasket. What's happening is the cylinder is blowing air into the cooling system causing this to happen.

Jun 24, 2008 | 1996 Chrysler Cirrus

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

21 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

77169 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...