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Front air conditioning fan not blowing

2003 Honda Pilot
Rear air conditioning still blowing cool air

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Posted on Jan 02, 2017

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SOURCE: 2005 Honda Pilot Rear Air

the blower for the rear air has a screen that like screen in your clothes drier or the screen on your hair drier will get loaded up with lint and junk. it is a bit of a pain to access, you have to remove the right hand kick panel on the driver's side and then you could see the screen. good luck.

Posted on Aug 05, 2008

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SOURCE: 2001 Honda Odyssey Ex Air Conditioning Not Cooling

Hi, my best advise is to have your air check for freon leaks ,low freon causes the compresor cluth to stop working ,this can cause the air to blow hot .......

Posted on Aug 24, 2008

SOURCE: Air condition is not cooling my car is Honda Civic 2003

Realize that auto AC is basically a refrigerator in a weird layout. It's designed to move heat from one place (the inside of your car) to some other place (the outdoors). While a complete discussion of every specific model and component is well outside the scope of this article, this should give you a start on figuring out what the problem might be and either fixing it yourself or talking intelligently to someone you can pay to fix it.Become familiar with the major components to auto air conditioning:
the compressor, which compresses and circulates the refrigerant in the system the refrigerant, (on modern cars, usually a substance called R-134a older cars have r-12 freon which is becoming increasingly more expensive and hard to find, and also requires a license to handle) which carries the heat the condenser, which changes the phase of the refrigerant and expels heat removed from the car the expansion valve (or orifice tube in some vehicles), which is somewhat of a nozzle and functions to similtaneously drop the pressure of the refrigerant liquid, meter its flow, and atomize it
the evaporator, which transfers heat to the refrigerant from the air blown across it, cooling your car
the receiver/dryer, which functions as a filter for the refrigerant/oil, removing moisture and other contaminants Understand the air conditioning process: The compressor puts the refrigerant under pressure and sends it to the condensing coils. In your car, these coils are generally in front of the radiator. Compressing a gas makes it quite hot. In the condenser, this added heat and the heat the refrigerant picked up in the evaporator is expelled to the air flowing across it from outside the car. When the refrigerant is cooled to its saturation temperature, it will change phase from a gas back into a liquid (this gives off a bundle of heat known as the "latent heat of vaporization"). The liquid then passes through the expansion valve to the evaporator, the coils inside of your car, where it loses pressure that was added to it in the compressor. This causes some of the liquid to change to a low-pressure gas as it cools the remaining liquid. This two-phase mixture enters the evaporator, and the liquid portion of the refrigerant absorbs the heat from the air across the coil and evaporates. Your car's blower circulates air across the cold evaporator and into the interior. The refrigerant goes back through the cycle again and again. Check to see if all the R-134a leaks out (meaning there's nothing in the loop to carry away heat). Leaks are easy to spot but not easy to fix without pulling things apart. Most auto-supply stores carry a fluorescent dye that can be added to the system to check for leaks, and it will have instructions for use on the can. If there's a bad enough leak, the system will have no pressure in it at all. Find one of the valve-stem-looking things and CAREFULLY (eye protection recommended) poke a pen in there to try to valve off pressure, and if there IS none, that's the problem. Make sure the compressor is turning. Start the car, turn on the AC and look under the hood. The AC compressor is generally a pumplike thing off to one side with large rubber and steel hoses going to it. It will not have a filler cap on it, but will often have one or two things that look like the valve stems on a bike tire. The pulley on the front of the compressor exists as an outer pulley and an inner hub which turns when an electric clutch is engaged. If the AC is on and the blower is on, but the center of the pulley is not turning, then the compressor's clutch is not engaging. This could be a bad fuse, a wiring problem, a broken AC switch in your dash, or the system could be low on refrigerant (most systems have a low-pressure safety cutout that will disable the compressor if there isn't enough refrigerant in the system). Look for other things that can go wrong: bad switches, bad fuses, broken wires, broken fan belt (preventing the pump from turning), or seal failure inside the compressor. Feel for any cooling at all. If the system cools, but not much, it could just be low pressure, and you can top up the refrigerant. Most auto-supply stores will have a kit to refill a system, and it will come with instructions. Do not overfill! Adding more than the recommended amount of refrigerant will NOT improve performance but actually will decrease performance. In fact, the more expensive automated equipment found at nicer shops actually monitors cooling performance real-time as it adds refrigerant, and when the performance begins to decrease it removes refrigerant until the performance peaks again.

Posted on Apr 21, 2009

  • 62 Answers

SOURCE: Rear air condition is not working, only the front

No there is only one low and one high side service ports.You have a bad expansion valve on the rear a\c unit.To properly replace the valve,you must first recover the freon from the system.Then remove the cover over the rear unit.Then from under the vehicle remove the two a/c lines from the unit.Then remove mounting bolts and remove rear unit from vehicle.Then you remove the screws that hold the two halves of the case together.You will now see the expansion valve Use extreme care when removing the fittings from the valve.It is very easy to kink the copper lines.Reinstall in reverse order.Be sure to evacuate the system before recharging.

Posted on Aug 08, 2009

  • 1 Answer

SOURCE: front vents don't want to blow air - new battery

Changing the blower motor resistor will solve the problem of the unchanging fan speeds and the blower motor having power when the ignition is turned to the off position. Beware that there are three different kinds of blower motor resistors. There is a manual, automatic, and a digital that in appearance is greatly different from the first two. The blower motor resistor is located on the passenger side below and behind the glove box. The kick-plate under the glove box will need to be removed by two screws and wha-la, behold is the motor and resistor.

Posted on Oct 14, 2009

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One of the cooling fan not working on 2007 Honda pilot


Have you checked in all conditions. Many cars with two cooling fans do not have both fans running all the time. On some, the second fan only comes on with the air conditioning or with the engine above a certain temperature or both. Check the manual to see when it's supposed to come on before you decide it needs to be changed.

Oct 26, 2016 | 2007 Honda Pilot

1 Answer

Honda Pilot 2003 temperature gauge gets only quarter way hot, and on highway it gets very low. Cabin fan temp is low too. Thermostat and was replaced several times. Cooling liquid was replaced too.


Sounds like you have either low coolant, due to not properly bleeding air from it when the coolant was changed, or the thermostat is not working, or possibly not right for the vehicle. (Honda's typically don't like aftermarket t-stats because they don't work as efficiently as the factory ones. And most are missing a bubble bleeder for air to pass through. (the little ball valve in most t-stats) You should also see if the cooling fans are stuck on all the time. They should cycle on and off fairly quickly as the switch calls for them. Air bleeding is critical as you have a large system with an aux. rear heater unit too. Even a relatively small air pocket trapped inside can wreak havoc on the operation of all related systems.

Apr 01, 2014 | 2003 Honda Pilot

1 Answer

Front a/c works fine rear a/c it is not blowing air fuse are fine .any idea?


A/C line to rear has leak. Rear line is seperate from front. I had same issues.

Aug 02, 2011 | 2003 Honda Pilot

1 Answer

I have a 2003 Honda Pilot and the rear air conditioning is not working i went to the dealer and they said it was the rear air sensor and they said it was in the center console. where in the center console...


If you look at your center console, you'll notice that there is an air vent on the back, facing the second row seats. This is where the rear air conditioning can be manually controlled by passengers in the rear of the Pilot...and where the air sensor is. To access it, you'd need to take apart your center console.

May 07, 2010 | 2003 Honda Pilot

1 Answer

Fan motor for cooling rear of 2003 pilot not operating


Center console need not be removed. Right side kick panel needs to be popped out, exposing the fan motor assebly. There are 3 screws securing the assembly to the duct. Remove the screws using a flathead screwdriver, unplug the unit and pull it out. The challenge will be finding a replacement motor, as they are not sold anywhere other than the dealerships (at an outrageous price)

Aug 13, 2009 | 2003 Honda Pilot

2 Answers

Fan for front not blowing ac compresser not coming on or


sounds like your restrictor box is takeing a ****.. does it work on any of the 4 fan speeds?

Aug 04, 2009 | 2004 Honda Pilot

2 Answers

The air conditioning on my Honda Pilot 2008 does not cool. It only blows warm air. Help.


1 st you should take into shop and have them do a vacume test on system ( they will **** out any freon and let system sit with a vacume pressure - to determain if there r any leaks ) if no leaks and everything else chks out just charge system --- or compressor is bad

Jul 02, 2009 | 2008 Honda Pilot

2 Answers

Rear air conditioning setting


It sounds like your rear temp. blend door is malfunctioning. You might could get a known good controller from (ebay,junkyard,craigslist) then plug it in. If this does not fix, it is probably a blend door actuator issue.

Dec 24, 2008 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

2001 Honda Odyssey Ex Air Conditioning Not Cooling


Hi, my best advise is to have your air check for freon leaks ,low freon causes the compresor cluth to stop working ,this can cause the air to blow hot .......

Jul 10, 2008 | 2001 Honda Odyssey

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