Question about 1990 Chevrolet K1500
How much freon do I put in the 1990 chevrolet c1500?
As long as you are using gauges, just make sure that the high side pressure is not out of the ballpark high... check cabin temp frequently and depending on ambient temp keep that reasonable as well (134 is not quite as efficient as r12 so don';t look for polar temps...you will blow it up before you ever get there.) 210-230 is average high side pressure, if I remember correctly. I've charged hundreds of units and except for very few, I couldn't tell you how much freon was used (unless using a charge station) Just following what I mentioned, I only had a problem with one (had a blocked condenser from the factory...so rare i actually remember it) Stay on the conservative side and you will be fine.
Posted on Jul 29, 2009
Switch on the AC @ max. open all doors, run engine at 2000 rpm, add freon to low pressure side of compressor, until bubbles stop in sight glass at the top of the liquid receiver.
hope this helps
Posted on Jul 28, 2009
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Posted on Jan 02, 2017
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