Question about 1978 Chevrolet C1500

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I have compressor oil leakage coming from the evaporator area but can't see where its coming from. What problem can I look for?It is on a 1972 chev truck. I have opened the evaporator cover but cannot see where the oil is coming from.

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If oil is coming form the evaporator box, the evaporator is leaking, period. Replace it, and the drier. Evacuate and recharge the proper amount.

Posted on May 31, 2010


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Hi, Does anyone know why I kept receiving ice alert sign on the dashbod while driving and then the air condition stopped working. I'm driving Peugeot 206 SW

the outside temp sensor has failed or perhaps the wiring to it the climate control system is being told the outside temp is very cold it switches of air con and instruments gets the same indication and turns on ice warning the sensor is normally located lower front bumper area most likely cause sensor hope that helps

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I need to know how to fix an ac on a 1991 Toyota corolla

Air conditioner is required to have:
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When I run defrost, there is a bad moldy smell. Only happens on defrost setting. Is there a filter to change somewhere?

The condensation is not completely draining. You may want to see if it is plugged. Find the drain area in the engine compartment on the bottom of the firewall. Use an air compressor to blow air back through to clear it. I had a problem with that area which was a ford expedition design flaw. It was draining onto my O2 Sensor and damaging it. I had to make a bypass with a part form a GM truck.

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Much oil goes in ac compressor 1994

oil stay in system. if you have a freon leak oil come out.for the all system 8 ounces. But 1 ounce dryer ,2 ounces compressor , 1 ounce condenser, 1 ounce evaporator and so on

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1972 chevy c10

the best suggestion is to give up on replacing compressor clutches and have the system done by an accredited ac specialist shop
excessive pressure from excessive gas is hydraulicing the compressor and making the clutch slip burning it out
next flushing the system removes all of the compressor oil in the system leaving the compressor running virtually dry
next when a system is opened , moisture laden air gets in and that has to be vacuumed out for a period of 2 hours minimum or the water in the air turns to ice and blocks the tx valve
freon gas ( if that the gas that is supposed to be used as many now run r134a) is inserted ,not by the can but by the low pressure and high pressure readings on a manifold gauge designed for that purpose
I would say that by now you would have spent more money than what it would have cost you at the ac specialist shop

Apr 22, 2017 | Cars & Trucks

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Replacing a/c compressor and accumulater on 97 chev compressor says add 180cc pag i need to add oil to accumulater?

Usually an ounce is more than enough to add to the accumulator. Same thing if you where to replace the condensor or evaporator.

If you wanted you could dump the oil from the old accumulator into a cup and then add that same amount to the new one but an ounce would be the norm.

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I have a 1972 chevelle ss 454. I have ordered factory lines, compressor, condenser, and accumulator and poa expansion valve for r12. I will change oil, poa, 150. what else needs to be done with factory...

Use pag oil with a dye. Helps finding leaks. Think you have everything you need. Put the dryer on last and keep it sealed to prevent mositure from getting in. Pump it down for at least an hour on a new system.

Some compressors come with a full charge of oil. Use the right amount of oil. Add to compressor and add a little to the dryer as well.

need some good votes, thanks

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2002 Ford E350 air compressor keeps seizing - why

whoever is servicing the unit does not understand OILING. it is a little complicated, but critical. Oil moves along with the refigerant.

Here is a little example, these numbers are not specs, but rounded for your understanding: IF your system was to have 14 oz of oil, with 4 oz in the compressor, and your compressor has only 2 oz in it, the defecit is 7 oz, and not 2 oz.

Oil fills each area (like compressor, receiver dryer, evaporator and condencer)then spills over to flow through the system...

This job requires special tools and training, take your system to a qualified shop, not the one that you have been going to.

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