Question about 2002 Nissan Altima

1 Answer

Heating system in 2002 nissan altima completely gone out

When you turn the heat on the car nothing but air blows out. let the car run for a while and it still blows out nothing but air. put water in the car and it stills does no good. i need the best answer for this problem.

Posted by on

  • 9 more comments 
  • Anonymous Dec 17, 2008

    i changed the thermostats on my 2002 nissan and i removed the heat shield now the car is loud.

  • ashvin_12345 Dec 20, 2008

    yes, I have Nissan altima-2001 model.

    Heating is too low.After 30 starts little heating.

    Ashvin vaza

  • Anonymous Jan 03, 2009

    I have the same problem. I noticed the heat was VERY low about 4 weeks ago. I would have to let the car warm up for a while before i got heat. Now, there is no heat at all

  • djfingall Jan 03, 2009

    I am having the same problem. It started about a month ago, but i noticed that if the car was running for a while the heat would kick in after 15 minutes or so. As of today, it did not even kick in...

  • bubbabea127 Jan 10, 2009

    Yes we have the same problem, but our heating and air condition unit don't work, no heat no air for two years now.Nissan dealer was no help.

  • D_Kesh Jan 11, 2009

    My dad just bought me a 2002 Nissan Altima. It's a very nice car but the heater blows colder air than the A/C does. When we try to turn the knob to go further into the red, it springs back the other way.

  • sanj_patel01 Feb 21, 2009

    i have same problem, i dont know what to do? i asked firestone, and he came up with coolunt flush which is $100. i choose to get some more info from online. i hope if we get solution from here.

  • daftbuggar Feb 25, 2009

    it may be that the heat coil bypass damper has slipped off the drive gear. Its a very poor design. The Hot/Cold adjustment knob is not electronic. It is actually attached to a cable that drives the bypass (Mixing) damper with a cheesy drive gear setup. All located adjacent to the accelerator it can be dislodged by the driver....enjoy!

  • spctr27
    spctr27 Apr 11, 2012

    try adding coolant to the reservoir tank. Mine did the same thing. Works great now.

  • spctr27
    spctr27 Apr 11, 2012

    try adding coolant to the reservoir tank. Mine did the same thing. Works great now.

  • spctr27
    spctr27 Apr 11, 2012

    try adding coolant to the reservoir tank. Mine did the same thing. Works great now.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 55 Answers

Change the thermostat

Posted on Dec 15, 2008


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Nissan Altima 2002 Nissan Altima Takes long for heat to come out

You might try bleeding air out of cooling system. Elevate front of car on ramps and leave running. Remove radiator cap before engine gets hot. When engine starts to heat up, air bubbles may come out of top of radiator. Add coolant slowly as level drops. It may take a long time for car to warm up (15-20 minutes)

Nov 09, 2013 | Nissan Altima Cars & Trucks

1 Answer

2002 nissan altima heater problem

have 2002 altima,blower works no heat at idle and very little heat when accelerating.I changed carbon cabin filter,made sure little gear under dash to temp knob wasnt broken,flushed and bled system.Nothing worked so checked hoses to heater core and found inlet hose was hot,outlet hose was not.So investigated this problem and came to conclusion heater core was clogged.An easy way to check is to get car to normal running temp. put on heater and blowers at full.Go under dash on passenger side where counsel meets firewall,this is where heater core core inlet and outlet aluminum tubbing go through firewall,you will be able to feel both tubes one closest to you is outlet, so if this one is not hot and and other is your heater core is clogged.I detached both inlet and outlet hoses to heater core from water control valve.Then I blasted water with waterhose and nozzle set at jet,first through outlet hose to blow gunk out,then through inlet hose until water runs clear.Reatach hoses fill and bled system.heater works great nice and hot!

Nov 10, 2012 | 2002 Nissan Altima

3 Answers

Heater blows cold air at low speed and idle 02 nissan altima

I worked at a Nissan dealer for 18 months and we'd get a lot of these in. The cold heat at idle is accompanied by a sloshing noise from behind the dash - you've got an air pocket in the heater core. What we used to do was lift the front end of the car about 3 feet off the ground using the hoist and take the rad cap off. Then we'd run the engine at a fast idle (jam a screwdiver against the throttle stop to hold it fast or put a slight weight on the pedal if it's Electronic Throttle Body. Run the heater on full heat and the engine like this. You'll see the rad 'burping' as the air in the cooling system travelling to the highest point it can - the open rad cap. Top up with a 50/50 mix of coolant and water as you go. When it burps no more, you have a full cooling system and should not suffer any more "cold heat".

If you do this yourself, PLEASE use jack stands, block the back wheels and put the parking brake on!!!

answer from a Nissan mechanic, (not me)

Dec 10, 2009 | 2002 Nissan Altima

1 Answer

My 2002 Nissan Altima's heater will not heat it will blow cold air and if you run it for an hour or so it will work what wrong with it

its most likley to be the engine thermostat you could need a new one fitted dose the engine get fully hot or dose that take a long time to warm up as well even when your driving it,, if it dose its that themostat

Oct 26, 2009 | 2002 Nissan Altima

1 Answer

Temperature control when turned slight above 60 turns the heat on, any answers. 2005 nissan altima.

there's a few possibilities with this one....

1) it could be that your air blend door is stuck or the gear that controls it is broken.

2) it could be a problem with coolant leaking or a coroded cooling core that causes its efficiency to drop to the point where when under load, the engine will heat the air in the AC system to only blow hot air.

The solution for the first problem is an relatively cheap fix. there is a service bulletin for it with the part number and how to check if its the problem on the nissan forums at nissanclub.

The second problem is rather costly and involves some wrenching,.... you can also find information on that on the forums.

Hope that shed some light on it, and best of luck.

Oct 14, 2009 | 2002 Nissan Altima

2 Answers

Nissan Altima no cool air blowing or hot air blowing

It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.

Please press the Blue button to appraise my FREE Efforts, Thank You!
Paul 'W' U.K

Feb 24, 2009 | 2002 Nissan Altima

1 Answer

2002 nissan altima - doesn't have any heat

nissan altima notorious for air pockets in cooling system , bleed system well , make sure cooling system is topped off and retry , cheers .

Jan 12, 2009 | 2002 Nissan Altima

1 Answer

Very little heat in cabin of car

Trash build up gets caught in the heater core usually because coolant flush isnt done oncea year. What needs to be done is disconnet heater hoses and blow heatercore out with shop air.

Jan 11, 2009 | 2002 Nissan Altima

1 Answer

2003 Nissan Altima heat problems

take to dealership , that also is a recall problem with alot of altimas , they need to flush system and check water valve , got mine fixed working great ever since , never hesitate to ask dealership about recalls , they have to fix for free

Dec 18, 2008 | 2002 Nissan Altima

Not finding what you are looking for?
2002 Nissan Altima Logo

964 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

77499 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

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

Answer questions

Manuals & User Guides