Air compressor slow to fill tanks.

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(08-30-2022 )Bengy88 Wrote:  What rawze said…… also the outlet line from the compressor needs to be checked thoroughly, spray soapy water on it all the way to the dryer and look for bubbles, the heat from the compressor deteriorates them internally and the air will seep out all the way down the line.

Then you can bypass the air dryer by hooking both the big lines together (screw the fittings out the dryer and use a 1/2 inch pipe thread coupling to connect them together) and see if it will build air, if it will then the air dryer is the issue…. If not then you have a bad leak that you can’t hear or your compressor is bad.

To verify you don’t have a bad leak that you just can’t hear you can unhook the outlet line from the compressor and hook shop air to the line with the truck not running. There are check valves that allow the system to hold air with the engine not running, if there is a leak between the compressor and the check valves you won’t be able to hear it with the engine running if it’s bad enough and with the engine off it won’t leak.

T
I will definitely try this! Thank you.