How do I flush the cooler lines?

  • The best way to flush cooler lines and coolers is with a cooler flush machine. These machines are designed to run hot ATF through the cooler, switch directions quickly to loosen any debris, and carry it to a filter. The better machines have screens to detect how much debris has been removed.
  • Another feature is the pressure. If it’s too high or restricted, then the machine will shut off. We strongly recommend the hot flush machine for all shops. Ultimately, it is a come-back saver!