Devlh Laveighn
New member
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- 7
I'm having a fuel system issue with my John Deere 690 ELC. I've already replaced the water separator, lift pump, fuel line, and glass fuel filter. The excavator runs well for about 20 minutes, then loses power, stalls, and won't restart until I reprime the fuel system. I also noticed air bubbles in the glass fuel filter. I'm looking for ideas on where air could still be entering the fuel system.