I have a 1995 chevy WT1500 truck. It needs a compressor and accumulator. I flushed the system out and sealed the lines going to the compressor. Used a robinair vacuum pump 15310 to pull a vacuum to see if I had any leaks before putting in a new compressor and accumulator. Ran for an hour but gauges only went down to 5 inches. Closed low side valve off. Gauge held at 5 inches. Discharged system through high side port and it went to zero. The system seems to be tight. Is the vacuum pump just a piece of crap? I got it yesterday.
- posted
11 years ago