A/C blowing hot air, I'm testing your talents because so far this site has done me no good
I get the same response I answered the question 4 times my freon level is good the gauges say its holding approximately 3 pds of freon more then enough to blow atleast cool air , its blowing burning hot air but yet the lines to the evaporator are hot on one side and ice cold on the other but air passge seems to be going the wrong way. vacum ball plap door something is there a way to bypass the climate control ?
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What blows cold air? The heater? Sounds like a radiator problem. I'd have someone flush the cooling system if it has not already been done. Could also be a bad or going bad Coolant pump, unless it has been replaced. It might be smart to do both at the same time. If the coolant pump is bad, it could explain no circulation of hot coolant through your heater coil.
Any oil that was in the head will seep into the piston head over time and this will blow black, but should stop after 1 min.
If this happens over and over with starting every day its a bad seal on your piston rings, this has nothing to do with the air filter.
If your car has sat for that long you need to change the oil asap as oil and gas will go bad after only a few months gas 4-5 months oil will go bad after 3 months or if it has gotten very hot.
Change oil and test to see if your still blowing black if so go get a compression test done that will tell you if your rings are gone.
Ring jobs can be very costly, hope this is not the case.
make sure your heater core is in good condition this could be done with a compression test, if that is fine i would make sure the climate control switch is working proper and not shorting between cold and hot
This is common you will need to check the front blower resistor, this is located under the dash on the passenger side on heater box next to blower motor. the wiring plug also needs to be looked at. the plug on some of these heats up and starts to burn and in turn the connector needs replacing and the resistor also. If the connector is good then replace the resistor and that will solve the blower problem.As far as the rear unit not blowing hot air , make sure the coolant is full and if the coolant if full then you will need to take a look at the rear unit blend door. this is the door that opens and closes to control hot or cold air, if the coolant if full in radiator then blend motor may be bad, testing will need to be done to see if its the door or the motor that controls the door. good day
Many possibilities' First- you may be iceing up. That is when the temp sensor is to far into the condenser. Pull it out a small amount at a time. Good hint is the amount of water drained on to the ground when you park it. Second is - you may be low on freon causing the compressor to shut off when it's sensor tells it "not to run dry". Then the freon drains back to the pump and it starts all over again. Third is - the compressor may have a problem making it run hot. There is a sensor for that too, and will turn it back on when it cools off.
Not all of these are in every system, so with out more manufacturers info, (factory, or aftermarket)it's a generic answer.
The reason it only blows on high is the blower resister bad..As far as the a/c when it blows hot is the compressor still lock in..If not it could be a bad connection to the compresser or a bad a/c clutch
As far as the A/C goes. Does the A/C compressor turn on?? if so, than you may have a MODE door problem in the air box. Do all heater knobs turn freely or is one of the binding up?? I have seen the MODE door gears falling off and sticking the MODE door on hot setting. Test knobs for movement. If A/C compressor is not coming on, than you may have a leak and all freon leaked out or it could be just a simple thing like fuse or relay. Test to see if A/C compressor comes on. As far as the alarm goes, you need to switch your security from silent to non silent mode. Here is how its done. Hold BOTH lock and unlock buttoms together for about 5 seconds. (the directionals or sidelamps will flash)That will switch the alarmmode to NON SILENT and back to SILENT if you need to.