Much oil goes in ac compressor 1994 - 88 Oldsmobile Cars & Trucks

In a 1994 Chevy K1500, the compressor should receive power when the AC button is turned on, assuming that the system is adequately pressurized and there are no other issues preventing it from engaging. Here are some steps to diagnose the issue:

1. Check Refrigerant Levels: Low refrigerant levels can prevent the AC compressor from engaging. If your system is low on refrigerant, it may need to be recharged. This is typically a job for a qualified technician.
2. Check for Refrigerant Leaks: If your system is low on refrigerant, it's essential to check for leaks. A leak can cause the refrigerant to escape and prevent the compressor from engaging. Look for signs of oil or refrigerant leaks around the AC components.
3. Fuse and Relay Inspection: Ensure that the AC system's fuse and relay are functioning correctly. You can consult your vehicle's owner's manual or a fuse box diagram to locate the relevant fuses and relays. Replace any blown fuses or faulty relays.
4. Check the Pressure Switch: Many vehicles have a high-pressure and low-pressure switch in the AC system. These switches monitor the pressure in the system and can prevent the compressor from engaging if the pressure is too high or too low. Check these switches for proper operation and continuity.
5. Inspect Wiring and Connectors: Examine the wiring and connectors leading to the AC compressor. Look for damaged wires, loose connections, or corrosion. Ensure that there is no damage to the wiring harness.
6. AC Clutch and Compressor: If all the electrical components are working correctly, you may need to inspect the AC clutch and compressor itself. The AC clutch should engage and disengage when the AC is turned on and off. If the clutch isn't engaging, it may be faulty, or there could be an issue with the compressor itself.
7. Refrigerant Pressure Sensors: Some vehicles are equipped with refrigerant pressure sensors that can prevent the compressor from engaging if the pressure is out of the specified range. Check if your vehicle has such sensors and test them if necessary.
8. Professional Diagnosis: If you've checked all of the above and cannot identify the issue, or if you're uncomfortable working on AC systems, it's recommended to consult a qualified automotive technician or AC specialist for a thorough diagnosis and repair.

Remember to prioritize safety when working on your vehicle's AC system, as it involves high-pressure refrigerant and electrical components. If you're not experienced in automotive AC repairs, it's best to seek professional assistance to avoid injury or damage to your vehicle.

Probably a bad compressor, AC is a setting that runs the air thru the condensor, compressor, and evaporator, when the compressor goes out then they whole system shuts down.

the only oil amount you can check is remove a/c compressor
place it upside down(or drain plug) oil will drain in mesure cup if you find less than 1 ounce then pour 2 ounces in compressor
there is around 8 ounces in system
2 ounces compressor
1ounce evaporator
1 ounce condenser
1 ounce dryer
3 ounces for tube and the rest

unless you are changing a new compressor you should not have to add any oil in there. Do not put oil since the compressor already has enough oil in it. If you put oil in there and it already has oil, the AC system will not function properly because it has too much oil. How much oil to put in there is determined how much is already in there.

new compressor should have 5 ounces. dont overcharge and make sure the compressor did not already have oil in it.

May just need to be recharged, if r34 is too low, ac will not kick in, Wal-mart sells recharge kits and cans of r34 (insctructions are on kit)...expect to pay around $50 total if you do it yourself. If that doesn't work you may have to replace the AC compressor.

gm offers a ac delete pulley that bolts where the compressor goes

i believe it is 4.5qts

compressor will not come on ,makes a horrible noise when you turn air on noise goes away but ac won't blow cold

If the compressor has gone bad again, it may be because the system didn't get flushed properly when it was first replaced or oil was not added. Before being done again, it must be flushed. This can only be done using special tools and materials. If you have that done, then you must replace the receiver/dryer, associated seals, refill the system with right amount of compressor oil, the compressor of course and then recharge the system. This is all assuming there are no leaks in the lines or the evaporator and condenser.