Refrigerant blows out of new a/c compreeser
changed compressor/ accumulator/ orifice tube/ condenser/low and high pressure switch's . Removed refrigerant from truck recharged and refrigerant blow out relief vaule on back of compressor ask on a other site said fan clutch is bad but I can air blowing from back of fan. I had truck recharged at a jiffy lube but cold blow out of vents more when truck was moving when at a stop less air blowing out of vents so that's when I replaced parts other site says fan clutch is bad and not moving are so hi pressure side builds up and blows out of compressor but if air moving from behind fan f
Experienced mechanics share their insights in answering this question :
It certainly sounds like you have a cooling issue. To check your fan clutch, spin the fan with the engine cold. Then let the engine reach operating temperature, shut it off, and spin the fan again. It should feel much tighter than before. If not, replace the fan clutch. With the age of your truck, its probably a good idea to replace it anyways to prevent future issues. If you are not comfortable doing the repair, a certified technician, like one from YourMechanic.com, will be able to complete the repair for you.
How to Identify and Fix Common car Problems ?
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When the air compressor goes bad, its fan blade can shoot small shards of metal throughout the system. This can damage several air conditioner parts and create refrigerant leaks. Refrigerant leaks can also be caused by a broken seal, a broken gasket, or any other component of your system.
Your Condenser may be blocked, thermo-coupler (engine cooling fan clutch) may have failed, your old compressor may have thrown a bunch of trash on the system and blocked the orifice tube, Your evaporator can freeze over, the blend air door motor in the heater case may have failed.
An air-conditioning compressor, usually driven by a serpentine accessory belt, sometimes squeals or squeaks before it breaks, but it also can stop working without any audible warning signs. In addition, a compressor can leak refrigerant, which will mean less cool air or none at all.
Harmful substances and solids can form in the refrigerant circuit, leading to component damage. It is therefore absolutely essential that the air-conditioning system be flushed during repair work, and above all when exchanging the compressor.
An AC drain pan full of water may be caused by drainage problems, a frozen coil, improper installation, or low refrigerant levels. A clogged drain pipe is the most common reason, which can cause significant damages to your AC unit.
Overcharging of an A/C system often causes high-side system pressures to skyrocket. System overheating can also come as a result, adding further insult to injury, and preventing any level of cooling from being achieved. Freezing of an A/C systems suction line can easily occur at the hands of slight overcharging.
Compressors are actually very dependable (lasting on average between 12-15 years) so typically, when your AC compressor has gone bad there`s an underlying cause that needs to be addressed lest the problem reemerge even after the unit has been replaced.
There is something called a standing leak (SL), and they are the most common. You can detect an SL when the air conditioning unit is off. Then there are pressure dependent leaks (PDLs), which are discovered as pressure builds up in the cooling system.
A refrigerant leak typically appears in the evaporator coil. The refrigerant is mostly a superheated gas while in the evaporator coil and can therefore leak from smaller holes. Refrigerant is part gas and part liquid, depending on where the chemical is in the process and in the system.
Normally you do not need to add oil to your AC compressor after it is installed unless your installing a new compressor or if there is a leak in your AC system. If you still have to add oil, check the compressor specifications on how much oil is needed.
If your compressor is still under warranty, replace only the compressor. Assuming the compressor is no longer under warranty, we recommend replacing the outside unit if one or more of the circumstances also applies: Money is really short right now and you`re not sure it`ll be better anytime soon.
Most new compressors will take about eight ounces. Make sure the correct oil is used and the amount is used.
The Compressor: Excess refrigerant creates a danger called slugging. This is when extra refrigerant floods into the piston cylinders of the compressor when in a liquid state. Slugging can create many different problems such as broken valves, broken connecting rods, and significant damage to the compressor.
There are two methods of removing refrigerant from a system. The first is to pump all available liquid into an approved refrigerant cylinder using the refrigeration system containing the refrigerant. The second is to use refrigerant recovery equipment commercially manufactured for refrigerant recovery.
So, if you were wondering whether it`s that important to vacuum your AC system, the answer is, yes! Vacuuming allows you to remove any moisture and air from the system, guaranteeing optimal performance.
Yes. All of the air conditioning systems we offer are pre-charged to allow for the volume of about 20 feet of refrigerant lines. You must have an EPA certification to handle refrigerant.
The AC Condenser Fan Motor is damaged – like the blower motor failing, a broken condenser fan motor can also create a humming noise when it breaks. If the indoor blower is working but the fan is not turning, your fan motor may emit a loud buzz. Some people perceive this noise as more of a hum than a buzz.
A worn bearing will produce a high pitched squealing or grinding sound, while a seized bearing will produce a grinding noise or a noticeable belt squeal. Due to the complexity and nature of how compressors are assembled, it is usually easiest to replace the entire compressor instead of attempting a repair.
Nitrogen is effective at flushing all contaminants out of the air conditioning unit`s system, enabling the unit to run without spreading contamination. Nitrogen gas for air conditioning purging is readily available and relatively cheap to purchase.
Excessive vibrations can cause compressors to experience a short to ground. If your air conditioning system`s compressor vibrates aggressively, the windings may gradually degrade to the point where it causes a short to ground.
Electrical problems – Compressor failure can also occur due to a series of electrical problems, such as voltage unbalance, current unbalance, phase loss, and too low or too high voltages.
The simple answer is, “Yes, but you absolutely should not do this.” If for any reason you suspect that your AC has a refrigerant leak, turn off the system and call for professionals to repair the leak and recharge the refrigerant to its factory-set level.
As most refrigerant leaks are found at the indoor coil, an evaporator coil can be replaced to fix a leak. By hiring a professionally licensed HVAC company to replace this coil for you, you can expect to spend anywhere between $1,200-2,000 depending on the brand as well as how much refrigerant will need to be replaced.
Answer: Refrigerant and Freon are gases that are both colorless and odorless.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Refrigerant blows out of new a/c compreeser
ANSWER : It certainly sounds like you have a cooling issue. To check your fan clutch, spin the fan with the engine cold. Then let the engine reach operating temperature, shut it off, and spin the fan again. It should feel much tighter than before. If not, replace the fan clutch. With the age of your truck, its probably a good idea to replace it anyways to prevent future issues. If you are not comfortable doing the repair, a certified technician, like one from YourMechanic.com, will be able to complete the repair for you.
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We have a new battery, new alternator, new coil pk, new master fuse and the car still won’t hold power.
ANSWER : Hi there. The only thing that I could think possible is causing your problem is that something may not have been correctly installed while your son was completing this maintenance. However, if your engine was difficult to start before this service, it’s possible there are different components that are damaged that simply didn’t resolve the issue. The only way of knowing what is going on with your Trailblazer would be to have one of our mobile mechanics in your area come to your location and complete a car is hard to start inspection.
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It cranks doesn’t start new batteries, oil pressure switch new pmd, new injection pump. new alternator, new glow plugs.
ANSWER : Hello.
A crank but no start condition can be caused by many things. A few common causes are a faulty crank position sensor, or issues with the fuel system. The crank position sensor is used in the engine’s fuel calculations, and in some cases it’s failure will disable the engine.
It may also be possible that there is issues with the fuel system that are preventing the engine from running. If the fuel pump or injectors have an issue the engine may not run correctly, or at all. It may also be possible, for either case, that the issue may be wiring related.
I would start by trying to determine if the engine is getting fuel and then going from there. If you need assistance with these checks, consider YourMechanic, as one of our mobile technicians can come to you in order to diagnose your starting issue firsthand for an accurate repair.
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AC blowing hot air
ANSWER : Hi there. The high and low pressure sides of the A/C system are connected. The A/C system is a loop. It will not only leak from the low side but retain pressure in the high pressure side.
You make no mention whether the receiver/dryer was replaced either when the condenser(s) were replaced or when the compressor was replaced.
Whenever the A/C system has a leak, not only does the refrigerant leak out, but normal contamination and moisture in the air gets into the A/C system through that leak. Any time the A/C system has a leak or is opened for any length of time, either because of a leak or because the system was opened to replace parts, the receiver/dryer must be replaced. It’s job is to absorb contamination and moisture.
To explain how sensitive to moisture a receiver/dryer (otherwise known as an expansion tank) is, if a new one was laid out in the open on a humid day, within 30 minutes it would have absorbed enough moisture out of the air to render it useless. If that dryer is bad, it will affect the pressure readings between the high and low sides, and effect how cold your air gets. Too low or too high pressure readings can also be caused by a clogged expansion valve. If neither of those components were replaced when the A/C system was opened, start by replacing them both and recharging the system.
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A/C blowing hot air, filled 3 weeks ago with refrigerant and helped now refrigerant not cooling it.
ANSWER : Your car uses a refrigerant called R134a. If the re-charge 3 weeks ago resulted in your system working at that time, but a slow degradation in cooling effect has occurred since then, the most likely explanation is you have a leak somewhere in the system. The most common leaks are at compressor shaft deals and o-rings. YourMechanic can pressurize your system with nitrogen and then determine where the leak is using for example an infrared refrigerant leak detector and repair it.
Do NOT use stop leak products and even leak detecting dyes can be problematic UNLESS specifically approved by GM technical services. If you want a long term, professional fix, the best thing to do is find the leak and simply repair it, not mask over it with "stop leak". Once the leak is found and repaired you will need to replace your receiver/drier as part of the repair and add the required amount of refrigerant oil to the drier. Evacuate THOROUGHLY to remove all traces of moisture.
If you have YourMechanic diagnose the issue with your AC and do the job according to the instructions, you will be freezing when it is complete.
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I got a new battery new alternator put in but my battery just gets drained I keep having to buy new batterys
ANSWER : This may be a sign of a failing voltage regulator or potentially a bad grounding problem causing a draw on the system. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to the battery resulting in damaging wires and prematurely sometimes destroying the battery. In other cases it may result in the alternator not supplying enough power to the battery, resulting in undercharging the battery or not charging it at all. In either case, I would recommend having an expert from YourMechanic come to your location to diagnose your vehicle’s charging system.
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cold rough idle and P0303 code , run great after clearing code and warming up,
ANSWER : Code P0303 suggests a misfire in cylinder #3. This can happen for many reasons such as a vacuum leak, weak fuel pump (pressure), bad ignition coil, low voltage to the fuel injectors (causing pulse problems) or a faulty mass air flow sensor, all of which can cause an imbalance in the air/fuel charge in that cylinder. Try checking to see if you are able to replicate the misfire and see if it happens more under load or at idle or if it is completely just intermittent. This may help to narrow down what types of components to check.
Read Full Q/A … : Refrigerant blows out of new a/c compreeser
My car cranks but will not start. I try to do fix the car myself. I put new battery, new alternator, and new ignition coils.
ANSWER : Hi there. Check the spark plugs and see if they are worn or burned. If the plugs are good and they have a good spark, then the engine compression could be low causing a no start situation. If the spark plugs are not emitting a spark, then the crankshaft position sensor could have failed or disconnected. Check the crankshaft position sensor wiring harness and make sure that its plugged in. Check the sensor and make sure that its not broken or damaged. If you need further assistance with your engine not starting, then seek out a professional, such as one from Your Mechanic, to help you.
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