Question about 1996 Chevrolet K1500

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Replaced compressor and dryer and need to know how much r 134a goes in

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2lbs. 0oz. Cans of refrigerant come in 12oz. cans, so between 2.5-3 cans should fill the system. I recommend running a can of refrigerant + dye, price should not be much different, to make sure there are no leaks. So run 1 can of refrigerant + dye and 1.5-2 cans of regular refrigerant and you should be good to go.

Posted on Sep 14, 2010


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Posted on Jan 02, 2017


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A/C compressor front seal leaks 134a. Can the can of 134a with leak sealer really seal the leak?

No, the stop leak is designed to seal a leaky O-Ring. I have never seen anything fix a compressor seal other than replacement.

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There are simple conversion kits that basically just replace the service ports to use the r-134 type hoses, but it is best to have a pro evacuate system and flush it, draw a vacuum, add correct oil and freon. If the system has been empty or dead a while, best to replace dryer and orifice tube or expansion valve as well.

Jul 27, 2015 | Cars & Trucks

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Why won't the A/C turn on?

You did put 134a back in? But possibly not enough? There is a pressure safety switch somewhere in the system that detects pressure and opens the circuit if not enough freon. At least that is where I would start. Does the Compressor turn freely otherwise by hand? Did you get enough compressor oil into the system (new Compressors need special charge with compressor oil).

Jul 05, 2015 | 2000 Volkswagen Golf

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Compression hose on my 1993 chevy blazer k1500 is leaking how do i replace it and what tools do i need

AC compressor hose? If yes, confirm system is empty before disconnecting from the compressor and the next piece(dryer/expansion valve/etc). When installing new hose(s) , replace associated o-rings and the dryer too. Pull vacuum after everything is buttoned up. Then add few ounces of pag oil and they factory oz's of 134a.

Oct 25, 2013 | 1999 Chevrolet Silverado 1500

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How to convert my a/c r12 to 134a my car is mercedes e300 1986

As far as I know you only have to change the compressor and dryer-filter to comply with 134a. Other components from old Freon 12 are safe to use for 134a. There's an Urban (mechanics) legend that you can use a 134a to an r12 system, but you can't use an r12 to a newer 134a system. But be on the safe side, change the compressor and dryer to use 134a or ask an expert on refrigeration.

Oct 03, 2012 | 1986 Mercedes-Benz 300

1 Answer

I have a 1993 5.0 Mustang GT and I can't get power to my aircondiction compressor I have power at my pressure switch on my dryer but can't get power at the compressor

you need to buy a recharge can of 134a that has a gage and hose attached, your a/c will not work if there is not enough pressure in the system. buy one of these recharge kits at your local auto store they run about $25.00.follow the enclose instructions on how to use it. Again if there is not enough pressure or if the system it is over pressurized than the compressor will not operate. by having the Gage you are going to know exactly the pressure of the system.Make sure you get the kit with the 134a and sealer in one can recharge kit.

Jun 01, 2011 | Ford Mustang Cars & Trucks

1 Answer

Bought some 134a freon can not find low pressure valve to charge the system please help!

Hi, the low pressure port is along the line that goes from the firewall to the compressor. It may be on the dryer, if there is a dryer on that line. The port usually has a black cap screwed onto it. I will look for a picture. Do you have the 3.0 engine?

Apr 29, 2011 | 2000 Ford Taurus

1 Answer

A/C quit blowing cold air after a loud squeeling noise stopped!

Look way down on the engine front area passenger side for the compressor.
Is the belt gone?
Check the belt tensioner pulley....can you turn it? it seized?
If it is OK then try and turn the compressor.......and the idler part of the compressor.
If the compressor is seized.....why?
Usually lack of oil in the system,or an overcharged system.

Once you have removed the 134a gas from the A/C system before removing the compressor and before installing the new compressor make sure you add the correct amount and type of oil into the system to prevent another seized compressor after you have flushed the system to remove contaminates such as old compressor grindings......if the compressor was seized.
You will also need a new receiver/dryer once you open the system to the moisture in the air.
Do not expose the new receiver/dryer to air....install last.
Vacuum the system well before refilling with the correct amount of 134a.
At 70 to 80 degrees outside temp........a vent temp at medium fan speed of 48 to 45 degrees should be a full charge .......use this reading if you do not have a electronic scale and/or A/C machine.

Sep 08, 2009 | 2000 Chevrolet Silverado

2 Answers

How do you convert the R-12 a/c to R134a for a 4.0L engine?

You don't. The oils for freon 12 and 134a are not compatable. There are substitutes for freon 12 out there. I belive on is called sure shot. There very resonably priced.

Jul 05, 2009 | 1992 Jeep Cherokee Sport

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