Quote:
Originally Posted by Richard L
Sounds like one of three internal valves has trapped air. Use a short length of 6mm hose, feed the pump outlet back to the tank. Power up the pump by putting the system on test (make sure the "INJ" is unlinked first). If possible, hold the pump and rotate it slowly. Ensure the outlet port is at the highest point to encourge the trapped air to escape.
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Thanks for the advice, I'll give that a try tonight. Two unfortunate things about my pump placement: 1) the outlet is lower than the inlet as shown in the pictures. 2) It's difficult to get to; bumper cover must be removed.