Question about 2007 Nissan Altima 2.5

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2007 Nissan Altima air conditioner & heater takes a long time to come on

A/C & heater takes long time to start blowing, and now a/c does not blow cold air.

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Your Air Conditioner might be low on refrigerant. If the AC doesn't cool down and had signs where it took a while to start cooling, you likely have a slow leak. It could be that an O ring wore out and started leaking, or a hose developed a leak. Rubber components tend to be the first parts that wear out over a period of time. A shop can confirm if your 134A refrigerant leaked out of the system.

Posted on Jan 05, 2013

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Posted on Jan 02, 2017

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onyeredson
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SOURCE: Nissan Altima no cool air blowing or hot air blowing

Hi!
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

Posted on Feb 24, 2009

  • 1 Answer

SOURCE: 2003 nissan altima heater blowing cold air

Replace your thermostat

Posted on Jan 23, 2009

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Heat delayed


heat not blowing or not getting hot? if it's not blowing it may be the blower motor going out but if its just taking a while to get hot it could be the duct exchanger which could be a vaccume leak or you could be low on engine coolant, if the engine coolant is low the heater core doesn't get enough coolant to warm the air that passes thru it.

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The heater in my 2005 nissan altima does not blow any air at all


check for loose wiring by heater blower motor if that dont work,take the blower motor out and check it to see if its any good by using two wires connect them and check blower motor on battery posts if it turns then its not that

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What would cause the heater in my 2002 Nissan Altima to work sporatically


Is the vehicle fitted with climate control?If so, then check the function of the cabin air temperature sensor and check that it is also clean.

Nov 15, 2012 | 2002 Nissan Altima

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2003 Nissan Altima Heater problem


car heaters work by recirculating the heat from the engine coolant, this problem sound to me like you have a faulty heater matrix, these are generally a pig to get to and even more of a pig to remove/replace & involves a lot of stripping out of the dash, if you really want to do it here are the instructions on how to do so......

Instructions
  1. Removal
    • 1

      Make sure the Nissan Altima's front wheels are in the straight-ahead position. With the ignition off, disconnect both battery cables, starting with the negative. Wait at least 10 minutes for the air bag's energy to deplete before continuing.

    • 2

      Detach the driver side air bag and steering wheel. Disconnect the air bag module connector and horn electrical connector from inside the wheel's lids. Use a T150 wrench to remove the bolts Store the air bag module face up.

    • 3

      Take out the passenger side air bag. Remove the glove box to reach the module connector.

    • 4

      Jack up the Nissan Altima and securely place it on jack stands. Place a clean container directly underneath the drain plug located on the bottom of the radiator on the passenger side. Carefully remove the drain plug and drain the engine coolant from the cooling system. Put the drain plug back in place and set the coolant aside.

    • 5

      Discharge air conditioner refrigerant. If your car used R-12 refrigerant, it's against the law for you to discharge or recharge the system unless you're an EPA-certified technician, so you may need a professional to do this part. Disconnect the heater hoses from the heater core tubes from within the engine compartment.

    • 6

      Remove the instrument panel from the car. Remove the lower panels first starting on the driver side. Removal includes all the screws and connectors, the audio/deck pocket, switch panel, center console, grilles, pillar garnish, instrument stay and steering member. You may need assistance taking the panel out.

    • 7

      Disconnect the air conditioning housing by taking off the refrigerant lines and thermo control amp. Remove the heater unit from the car and the heater core from the unit.

    Installation
    • 8

      Install the replacement heater core to the heater unit. Replace the heater unit and air conditioning housing within the car, reconnecting all the lines.

    • 9

      Reinstall the instrument panel, including the steering member, instrument stay assembly, pillar garnish, grilles, center console, switch panel and audio/deck pocket.

    • 10

      Reconnect the heater hoses to the tubes. Connect the steering wheel, both airbags and the glove box back onto the car.

    • 11

      Fill the cooling system. Use new coolant, if you're not certain the old liquid is still good. Recharge the air conditioning refrigerant (unless it requires an EPA-certified technician). Reconnect both battery cables, starting with the positive one.

    • 12

      Run the Altima's engine to its normal operating temperature. Check the climate control operation and inspect the system for leaks.


      If you do not want to go through this hassle you have two other options:


      Option 1 pay for a mechanic to do all of the above.

      Or

      Option 2 buy yourself a 12v plug in ceramic heater or two, one you could keep on the dash for screen clearing duties & another you could keep near or on the center console for body warming duties!, best of luck & i hope this helps.



Sep 07, 2012 | 2003 Nissan Altima

1 Answer

The heater takes a long time to warm up and when I


1st thing I would do is have your thermostat checked at a rebutable rad shop also somtimes the rad cores get blocked and will not circulate the heat properly either problem can be rectified at the rad shop...good luck

Dec 23, 2009 | 2002 Nissan Altima

1 Answer

I have a 2004 Nissan Altima 2.5. When I run the air conditioner, it starts to run sluggish. Any ideas will help.


the air conditioner when switched on takes a lot of power from the engine, your air conditioning system is either clogged up or your engine needs servicing

Aug 09, 2009 | 2004 Nissan Altima

2 Answers

Nissan Altima no cool air blowing or hot air blowing


Hi!
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

No blower for heater 1993 nissan altima


It is very possible you blew a fuse. There are two 15 amp fuses for the blower motor, make sure you check both of them.

Nov 23, 2008 | 1995 Nissan Altima

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