Hi All
Got a Peterbilt 579 with an ISX15 engine.
Recently this weird problem developed and I was wondering if anyone has any insight.
The compressor build's air pressure to 130 PSI (Primary and Secondary tanks) followed by a drop of 10-15 PSI over a few minutes and builds it back up again to 130. Endless cycle on repeat.
Is this a sign of a major repair coming up or is it something simple and cheap to repair?
Thank you kindly.
Peterbilt 579 - Overworked Air Compressor?
Discussion in 'Peterbilt Forum' started by icbmredrat, Feb 27, 2025.
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