I have a 2000 Jeep Cherokee w/ a 6cyl automatic. When I first start the car and turn on the AC it blows cold air. After a few minutes of running it turns hot. Any suggestions on what the problem could be? Thanks!
2006-06-20 05:18:42 · 15 answers · asked by ufdan25 2 in Cars & Transportation ➔ Maintenance & Repairs
One thing you may want to look into is the blend door - this diverts the air from the air conditioned air loop or the heated air loop to the interior of your car. When it is working properly no air from the heater core gets into your car. SInce your heater core is part of the engine cooling loop it is "always on" - so it will heat up when your car warms up. If you have a blend door problem and air is coming in from the heater it could be cool to start and then get hot when it warms up.
2006-06-20 05:34:40 · answer #1 · answered by lakenaciguy 2 · 1⤊ 0⤋
There are several possibilities. You can do a little pre emptive checking to get nearer the solution.
1. Is the system fully charged with freon? Do this and leak test before anything else.
2. When the air starts blowing warm is the AC compressor engaged and turning? Check this by turning the AC on and watching the compressor. You can see the magnetic clutch engage and begin turning the part of the pulley closest to the AC compressor.
3. If 1 is yes, and 2 is no, then you have a temperature control issue.
4. If 1 and 2 are yes you have a blend air door problem.
Now that you know what the problem is, you can negotiate for repairs.
2006-06-20 05:27:54 · answer #2 · answered by yes_its_me 7 · 0⤊ 0⤋
Hopefully someone who does HVAC will answer your question with more insight than I have. However, if a coolant leak develops the AC will actually get colder before the coolant leaks enough that the AC stops producing any cold air. This leak initially leads to colder air production, but also causes a literal freeze up when moisture condences as ice on the coils. No air can get past the ice, so no cold air comes out the vents. Since you believe the unit was off long enough to thaw, there may be too little coolant left to make a difference. It sounds like you may have to call HVAC repair.
2016-05-20 05:01:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
1. Low refrigerant charge.
2. Condenser fan not running. (If it stays cold at highway speed, this is your problem.)
3. Clogged filter/dryer.
4. Other clogged AC component.
Don't just add refrigerant. Have an AC tech put a gauge set on it and check it out first. If your problem is anyting but #1 above, you're wasting money on refrigerant and may damage your system.
2006-06-20 05:29:30 · answer #4 · answered by Bostonian In MO 7 · 0⤊ 0⤋
Hmm...thermostat settings, low on refrigerant, system capacity, clogged radiator(some of the new cars/trucks have the A/C heat exchanger incorporated into the main radiator) something blocking the radiator, best answer is take it to a dealership and they can look at it and pressure-test the A/C system, compressor seals and so forth, and look a the rest of the cooling system while they're at it. If it's never been done, it's probably getting to be time to change your radiator coolant, too.
2006-06-20 05:23:41 · answer #5 · answered by gokart121 6 · 0⤊ 0⤋
Your system needs recharged. Go to your local parts store and buy a R134A Recharge kit. Advance Auto Parts has a kit called A Measure and charge ( part # MAC134A ) that has the hose and guage built in so all you have to do is find your fitting and follow the instructions. It is cheap too, should be under $30.00.
Hope I have been helpful.
2006-06-20 05:29:39 · answer #6 · answered by king_davis13 7 · 0⤊ 0⤋
its prob your air conditioning unit was the car used? if not you need to get your air conditioning looked at you might have a hole in the pipe that delevers the cool air which is allowing the hot air from the engine being blown threw the pipe into the car which isnt good id get it checked, also it could be that the electronics are messed up and that cold could mean hot and hot could mean cold either way get it checked out
2006-06-20 05:26:06 · answer #7 · answered by Anonymous · 0⤊ 0⤋
make sure the ac condensor fan is working. It looks the same as and is right next to the radiator fan. Also I saw several suggestions to just add refridgerent, make sure you check the levels and actually need to add before doing so. Over filling may damage the system.
2006-06-20 08:30:51 · answer #8 · answered by Sir C 1 · 0⤊ 0⤋
sounds like you have a problem with the freon in your vehicle i would go to get it charged up and while they are doing that they can test for leaks. however if you have a vehicle that uses the 134a freon you could go to your local parts store or walmart and get a recharge kit and do it yourself. if it is the old style system that runs off of r-14 or r-12 you need to go to a mechanic and get it taken care of.
2006-06-20 05:27:28 · answer #9 · answered by georgescomputers 2 · 0⤊ 0⤋
You may have a freon leak or a compressor that's about to go bad. Have it checked before the weather gets really hot this summer!
2006-06-20 05:22:09 · answer #10 · answered by bigvol662004 6 · 0⤊ 0⤋