Question about 2000 Jeep Grand Cherokee

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The air conditioner stopped working first and then the heat stopped I was told that one switch controls them both, what is the name of that switch?

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Caesarfix
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SOURCE: heat/ac not working on 2004 Jeep Grand Cherokee Limited

look for Main A/C relay, look for fuses, or go to a/c shop and have gas check out, perhaps leaks, perhaps evaporator, perhaps condenser, but start for relay box on front passengers side, or fuses on same side

Posted on Feb 01, 2009

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1 Answer

Why is my air conditioner running when heat is selected on year 2000 mazda b3000.


check ur switching box make sure is turning the ac off disconnect form the switching box inside and see if ac goes off if so control box is at fault repair or replace. Good Luck

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I have new blower motor. it dosen't stop running


Could be a bad blower motor resistor,mounted by the blower.

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Air conditioner blows heat, conditioner was charged, freon, checked relay switch, fuse, door blend alol fine still hot air, was told maybe a block in V shape hose is it temp control value Help


Only way to tell if A/C Evaporator Core Orifice tube is plugged is by looking at A/C gauge readings , An if it is plugged you more then likely need a new compressor , they become plugged with metal particles from worn out compressor. Your best bet would be to take your vehicle to a qualified repair shop .

Jun 27, 2016 | 1998 Lincoln Navigator

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2008 Jeep Liberty-My heater was barely warm-blowing fine tho. Was told I had a plugged heater core and needed a new one. Had a new heater core put in and then my air conditioner stopped blowing cold air....


I woild be checking the vent controls as if the ac is working and the core was blocked then the air would be cool when the heat was selected but not changing Fixing the heater has resulted in a /c not being good enough to cool the air if the vent is not properly selecting. The point is that if the vent selection is not working properly (vacuum hoses) then the 2 faults will be related.

Oct 24, 2013 | Jeep Liberty Cars & Trucks

1 Answer

Air conditioning is weak


I will explain a few things about air conditioning and a possible rework using a $12 part. An orifice tube is part of some Air conditioners. The cheap ones are $3, but a self-adjust orifice for areas of 105 Degree heat are available. If done with a Freon Recovery machine, Freon costs will be minimal. It takes a special tool to change the part, but you could get the High Temp orifice online and find a place to switch it. Vacuum pumping is advised before refill.
Second, the best amount of Freon is a moderate charge. You have 2 cut-off switches one for low and one for high. This means the compressor will cut off when either extreme is reached. The recommended amount of Freon fill is what the Factory has determined. So many ounces per Label.
Air flow. You could just have a blocked Air flap under the dash or a Solenoid that is not turning the flap fully open. What you could do is try a used car on a lot and see how the blower works.
Fan speed resistor. If you have Digital Climate Control, this is an almost infinite speed regulator. Part of it could be burned out and even if the duct flaps are working properly, you won't get the push out of the system. Or it may have a part called a Solar switch which works with Climate Control and the other switches.
So if the Shop checked the Freon charge and it was Okay, there are still the additional items I mentioned which can affect the performance of the Air Conditioner. Again, check car lots for used cars to start up and check A/C performance.

Jun 29, 2013 | 2008 Ford Edge

1 Answer

Circuit unit behind the ac controls


sounds like your blower motor has stopped working check for power going to the blower system if you have power the blower is probably bad the concern is the lack of a fuse blowing or a breaker not cycling you may have a harness problem sometimes a low grade short will heat up wires then melt them together causing a multisystem failure even though a fuse or breaker didn't blow check you harness

Aug 09, 2012 | Dodge Avenger Cars & Trucks

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I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital...


I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital temperature on the climate control is not correct. When it states that it is below 30 degrees on the ext and it is warm outside the air wont be cold. Once it starts going above 30 degrees the air gets colder. Today the blower stop working all together. Was told it maybe the climate control unit was bad. You can hear the door opening/shutting when you switch the temp from cold to hot. But there was no heat blowing out whatsoever in the winter time. Could you please give me your opinion on whether or not it is the climate control unit or something else?

Jul 11, 2011 | 2000 Pontiac Grand Prix

1 Answer

The heating and cooloing system is not working. There is no heat or air conditioning coming through the vents.


  1. Check the air conditioner fuse and replace as necessary.
  2. Air conditioner system discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
  3. Air conditioner low pressure switch defective. Replace switch.
  4. Air conditioner fan resistor pack defective. Replace resistor pack.
  5. Loose connection, broken wiring or defective air conditioner relay in air conditioning electrical circuit. Repair wiring or replace relay as necessary.

Dec 16, 2010 | 2005 Cadillac Deville

1 Answer

1998 Honda Accord interior ventilation fan has stopped working.


they are right the air conditioner has nothing to do with the fan running .. your air conditioner is operated by a pressure switch .when it gets low on freon it will not come on, which saves your compressor. your fan only blows the cold air the air conditioner puts in to the coils located inside your dash. which the blower then blows the air into the car.. now you are on the right track look some more you will find the round motor under that dash near the glove box and its held in there with usually 4 small bolts. and removal is easy if you can locate it.. one wire and 4 small bolts and out it comes .. you should be able to get one at a local parts store ..

Feb 08, 2009 | 1998 Honda Accord

1 Answer

1995 Lincoln Heat and Air Stop working


You have a blendoor motor that controls the hot/cold door inside the hvac box. i have seen the motors stop workink. also the actual door will break wher the motor meets the door. either way dash will most likely have to come out..good luck...hope this helps

Nov 24, 2008 | 1995 Lincoln Town Car

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