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977 Charge Pump Testing

johnnyboy ยท 2012-07-03 09:49

Anyone out there know how to test the 977 charge pump?Can't seem to find much info other than possible bypass issue when revs are lowered. Would like to see actual gauge pressure if anyone knows how to test this I would appreciate the help.

Replies1
  1. #1Old Magnet2012-07-03 16:20

    There is a test port on the pump. Pressure should be 305-315 psi with engine at high idle,trans in neutral and steering clutches engaged.